Dissertations / Theses on the topic 'Co-integration'
To see the other types of publications on this topic, follow the link: Co-integration.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Co-integration.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Zhang, Jie. "Co-integration : a review." Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/763.
Full text
2
Hualde, Javier. "Estimation of fractional co-integration with unknown integration orders." Thesis, London School of Economics and Political Science (University of London), 2004. http://etheses.lse.ac.uk/1753/.
Full textAbstract:
This thesis presents different methods of estimating the co-integrating parameter in a bivariate fractionally co-integrated model. The proposed estimates enjoy optimal convergence rates and standard asymptotic distributions, yielding Wald test statistics with x2 null limit distribution. In the last few years increasing interest has developed in the issue of fractional co-integration, where both the observable series and the co-integrating error can be fractional processes, nesting the familiar situation where their respective orders are 1 and 0. These values have typically been assumed known. Chapter 1 is mainly devoted to reviewing this traditional prescription and motivate the relevance of fractional co-integration. In Chapter 2, we analyse a fully parametric model where the co-integrating gap, that is the difference between the integration order of the observables and that of the co-integrating error, is larger than 0.5. There, we show that our estimates share with the Gaussian maximum likelihood estimate the same limiting distribution, irrespective of whether the orders of integration are known or unknown, subject in the latter case to their estimation with adequate rates of convergence. Chapter 3, still in a parametric framework, proposes estimates of the parameter of co-integration in case the co-integrating gap is less than 0.5. Again, we cover both situations where the orders of integration are known and unknown. Our estimates are inefficient relative to the Gaussian maximum likelihood, but share with this estimate optimal rate of convergence and asymptotic normality, being computationally much more convenient. Chapter 4 concentrates on both situations described in the previous two chapters from a semiparametric perspective, that is without assuming knowledge of the parametric structure of the input series generating the fractional processes in the model. Finally, Chapter 5 describes a simple procedure of testing for the equality of orders of integration of different series. This is as essential step in any empirical work in order to asses for the presence of co-integration in a certain estimated model.
3
Clough, Sharice. "Co-speech gesture integration in hippocampal amnesia." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/6079.
Full textAbstract:
Co-speech gesture is ubiquitous in everyday conversation, facilitating comprehension, learning, and memory. Information is often provided uniquely in the gesture modality and this information is integrated with speech, affecting the listener’s comprehension and memory of a message. Despite the robust evidence that gesture supports learning, the memory mechanisms that support this learning are unclear. The current study investigates the ability of patients with hippocampal damage to integrate and retain information from co-speech gesture.
Four patients with bilateral hippocampal lesions, four patients with damage to the ventral medial prefrontal cortex, and 17 healthy comparisons watched videos of a storyteller narrating four stories with gestures. Some of the gestures provided redundant information to the speech signal and some provided supplementary information that was unique. The participants retold the story immediately after, thirty-minutes after, and four weeks later. Co-speech gesture integration was measured by the proportion of words changed as a result of seeing a supplementary gesture. Memory retention for the stories was measured by the number of story features mentioned during each retelling.
The patients with hippocampal amnesia were successful at integrating speech and gesture information immediately after hearing the story but did not show a benefit in memory for gestured features after delays. Though the hippocampus has previously been thought to be critical for relational memory, this finding suggests that the integration of speech and gesture may be mediated by other cognitive mechanisms.
4
Tan, Zu Jia. "Analysis on the integration of EU consumer credit markets : a co-integration analysis." Thesis, University of Macau, 2011. http://umaclib3.umac.mo/record=b2555572.
Full text
5
Kaboyoka, Livingstone S. "Regional integration and co-operation in sub-Saharan Africa." Thesis, University of Westminster, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433844.
Full text
6
Castro, Marcelo Augusto Farias de. "Co-integration in the real estate industry funds Brazil." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8929.
Full textAbstract:
nÃo hÃThe real estate investment (REI) is a newly created investment vehicle and still under constant development. Introduces, as basic characteristic, a property used for rental as the main asset. Governed by federal laws and regulations of the CVM instruction, regulatory frameworks help to give credibility to this investment vehicle. The REIs have tax benefits and remunerate its shareholders with regular income through rents. In addition, we present a third types of gain, which is the value of the shares of real estate funds. The current characteristics have a debonding between the equity and value of your shares, setting its recovery from supply and demand in the market. The study of this factor recovery was used to study development. Featuring a conservative perspective while being traded at BOVESPA, the question to be answered is whether the REI have a conservative characteristic when compared with other market indicators, such as IMOB, IBOVESPA, CDI, the IGP and INCC. And especially if there is a tendency over time with these same indicators, allowing to verify long-term behavior. With a stochastic characteristic non-stationary, the REI are cointegrated with the market indicators. The presentation of this tendency implies on a similar behavior over time, making it understandable with what market indicator the real estate investment presents tendency. Thus, the REI can be considered conservative investments, which have two returns (valuation of shares and payment of monthly rent), have characteristics of present value above the market benchmarks, low total and systemic risks and can be used as protection for stock investors, as a hedging tool.
O fundo de investimento imobiliÃrio (FII) à um instrumento de investimento recentemente criado e ainda em constante desenvolvimento. Apresenta como caracterÃstica bÃsica, possuir como o ativo principal um imÃvel utilizado para locaÃÃo. Regidos por leis federais e por instruÃÃes normativas da CVM, os marcos regulatÃrios ajudam a dar credibilidade a este instrumento de investimento. Os FII apresentam benefÃcios tributÃrios e remuneram seus cotistas atravÃs de receitas periÃdicas com aluguÃis. AlÃm destes, à apresentada uma terceira tipologias de ganho, que à a valorizaÃÃo das cotas dos fundos imobiliÃrios. As caracterÃsticas atuais apresentam um descolamento entre o patrimÃnio lÃquido e o valor das suas cotas, configurando uma valorizaÃÃo proveniente da oferta e procura pelas mesmas no mercado. O estudo desta valorizaÃÃo foi o elemento utilizado para o desenvolvimento do estudo. Apresentando uma perspectiva conservadora embora sendo negociado na BOVESPA, a pergunta a ser respondida à se os FII apresentam uma caracterÃstica conservadora comparado com outros indicadores de mercado, tais como o IMOB, o IBOVESPA, o CDI, o IGPM e o INCC. E principalmente se existe tendÃncia ao longo do tempo com estes mesmo indicadores, possibilitando verificar comportamento de longo prazo. Com uma caracterÃstica estocÃstica nÃo estacionÃria, os FII sÃo co-integrados com os indicadores de mercado. A apresentaÃÃo desta tendÃncia determina comportamento semelhante ao longo do tempo, fazendo com que possa ser entendido com qual indicador de mercado o fundo imobiliÃrio apresenta tendÃncia. Desta forma, os FII podem ser considerados investimentos conservadores, que apresentam duas rentabilidades (valorizaÃÃo das cotas e pagamento mensal de aluguel), possuem caracterÃsticas de apresentarem valorizaÃÃo acima dos benchmarks de mercado, apresentam baixo risco total e sistÃmico e podem ser utilizados como proteÃÃo para quem investe em aÃÃes, como uma ferramenta de hedge.
7
Lim, Hui Fern Michele. "Low Temperature Co-fired Ceramics Technology for Power Magnetics Integration." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/30156.
Full textAbstract:
This dissertation focuses on the development of low-temperature co-fired ceramics (LTCC) technology for power converter magnetics integration. Because magnetic samples must be fabricated with thick conductors for power applications, the conventional LTCC process is modified by cutting trenches in the LTCC tapes where conductive paste is filled to produce thick conductors to adapt to this requirement. Characterization of the ceramic magnetic material is performed, and an empirical model based on the Steinmetz equation is developed to help in the estimation of losses at frequencies between 1 MHz to 4 MHz, operating temperature between 25 °C and 70 °C, DC pre-magnetization from 0 A/m to 1780 A/m, and AC magnetic flux densities between 5 mT to 50 mT. Temperature and DC pre-magnetization dependence on Steinmetz exponents are included in the model to describe the loss behavior.
In the development of the LTCC chip inductor, various geometries are evaluated. Rectangular-shaped conductor geometry is selected due to its potential to obtain a much smaller footprint, as well as the likelihood of having lower losses than almond-shaped conductors with the same cross-sectional area, which are typically a result of screen printing. The selected geometry has varying inductance with varying current, which helps improve converter efficiency at light load. The efficiency at a light-load current of 0.5 A can be improved by 30 %. Parametric variation of inductor geometry is performed to observe its effect on inductance with DC current as well as on converter efficiency. An empirical model is developed to describe the change in inductance with DC current from 0 A to 16 A for LTCC planar inductors fabricated using low-permeability tape with conductor widths between 1 mm to 4 mm, conductor thickness 180 μm to 550 μm, and core thickness 170 μm to 520 μm. An inductor design flow diagram is formulated to help in the design of these inductors.
Configuring the inductor as the substrate carrying the semiconductor and the other electronic components is a next step to freeing the surface area of the bulky component and improving the power density. A conductive shield is introduced between the circuitry and the magnetic substrate to avoid adversely affecting circuit operation by having a magnetic substrate in close proximity to the circuitry. The shield helps reduce parasitic inductances when placed in close proximity to the circuitry. A shield thickness in the range of 50 μm to 100 μm is found to be a good compromise between power loss and parasitic inductance reduction. The shield is effective when its conductivity is above 107 S/m. When a shield is introduced between the inductor substrate and the circuitry, the sample exhibits a lower voltage overshoot (47 % lower) and an overall higher efficiency (7 % higher at 16 A), than an inductor without a shield. A shielded active circuitry placed on top of an inductive substrate performs similarly to a shielded active circuitry placed side-by-side with the inductor. Using a floating shield for the active circuitry yields a slightly better performance than using a grounded shield.Ph. D.
8
Figueiredo, João Filipe Melo de Almeida. "Drivers of agricultural future commodity prices : a co-integration analysis." Master's thesis, Instituto Superior de Economia e Gestão, 2015. http://hdl.handle.net/10400.5/10878.
Full textAbstract:
Mestrado em FinançasEstes contratos de futuros são negociados na ICE (Intercontinental Exchange, Inc.) e apresentam uma liquidez notável. Para este estudo foram recolhidos dados semanais, desde março de 2013 até março de 2015, num total de 105 observações. Os preços foram coligidos a partir da base de dados Quandl, e uniformizados através do método Back-Adjusted. Começámos por estudar a correlação entre o Índice Dólar Americano e o preço do Petróleo. Confirmando a conclusão de anteriores estudos, encontrámos uma correlação negativa entre o preço dessas duas variáveis. O teste de causalidade de Granger forneceu-nos evidência estatística suficiente para concluir que uma variação no preço do Petróleo tem impacto no valor do Índice Dólar Americano. Por aplicação do teste de cointegração de Johansen, encontrámos vetores de cointegração entre as variáveis Petróleo, Índice Dólar Americano e cada um dos bens agrícolas estudados. Em seguida, obtivemos modelos de vetores de correção de erro (VECM). Embora alguns destes modelos se tenham revelado menos sólidos, conseguimos, ainda assim, estabelecer uma relação entre as variáveis, nomeadamente no caso da soja, que pode ser considerada um referência para quem negoceia em contratos de futuros.
This dissertation aims to study the effects of changes in the prices of future contracts on Brent Crude Oil and US Dollar Index in the price of several agricultural future contract prices (Cocoa, Cotton, Coffee, Sugar, Soybean, Wheat and Corn). These futures outrights are traded on ICE (Intercontinental Exchange, Inc.) and have a remarkable liquidity. Weekly data was used from March 2013 to March 2015 with a total of 105 observations. The prices were collected from the Quandl futures database and are settlement prices from the front outrights. The Back-Adjusted method was chosen to perform the roll over. We started by studying the correlation between US Dollar Index and Brent Crude Oil prices. Confirming the conclusions of other studies, we found a negative correlation between the prices of Brent Crude Oil and the US Dollar Index. The Granger Causality test gave us enough statistical evidence to conclude that a variation in Brent Crude Oil prices indeed cause an impact on the US Dollar Index. By applying Johansen`s cointegration test we found cointegrating vectors between Brent Crude Oil, the US Dollar Index and each one of the studied agricultural commodities. The next step was to build vector error correction models. Although some of them proved not to be rock solid, we manage to establish a link among the variables, namely in the case of Soybean, which produce remarkable results and may, in fact, be treated as a benchmark for traders of future contracts.
9
Ersan, Eda. "International Fisher Effect: A Reexamination Within Co-integration And Dsue Frameworks." Thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12610157/index.pdf.
Full textAbstract:
International Fisher Effect (IFE) is a theory in international finance which asserts that the spot exchange rate between countries should move in opposite direction with the interest rate differential between these countries. The aim of this thesis is to analyze whether differences in nominal interest rates between countries and the movement of spot exchange rates between their currencies tend to move together over the long run. The presence of IFE is tested among the G-5 countries and Turkey for the period from 1985:1 to 2007:12. The long run relationship is estimated with the Johansen co-integration method and supportive evidence is found for all country pairs. Individually modeled equations are further tested with the Dynamic SUR method. Those DSUR equations that include the Turkish currency provide supportive evidence for IFE that higher interest rates in favor of Turkey would cause depreciation of the Turkish Lira. The magnitude of the effect is found to be lower than expected which indicates that there might be other factors in economy, such as inflation rates, that affect the exchange rate movements.
10
Gutierrez, Carlos Iñaki. "Integration analysis of product architecture to support effective team co-location." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9600.
Full textAbstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.Includes bibliographical references (leaves 88-90).
Successful product development efforts are greatly facilitated through the use of integration analysis. Teams working on a product development project need to be brought together into clusters to address interactions between the functions or product elements they represent. This thesis presents a stochastic clustering algorithm to find such clusters in an efficient manner. The algorithm can find clustering solutions to architecture and organization interaction problems modeled using the design structure matrix method. The algorithm can be controlled to favor solutions with certain characteristics such as level of overlap, number of clusters, maximum number of teams per cluster, and emphasis on the level of interactions addressed by the clusters. The difficulty to co-locate teams is measured by a coordination cost, which varies according to the composition of clusters. A mathematical model that minimizes the coordination cost to find the optimal solution for a given number of clusters has been developed. It has been used to measure the performance of the algorithm through a series of comparison tests. When the algorithm is run several times, the best solutions are reasonably close to an optimal solution. As a sample application, the algorithm is used to analyze the architecture of an automotive cockpit system according to six dimensions of integration. A set of solutions with different number of clusters was generated.
by Carlos Iñaki Gutierrez Fernandez.
S.M.
11
Su, Ting Ting. "An empirical analysis of China's equilibrium exchange rate : a co-integration approach." Lincoln University, 2009. http://hdl.handle.net/10182/1106.
Full textAbstract:
The question of an equilibrium exchange rate has always been a debatable issue. Along with rapid growth of the Chinese economy over the past two decades, a number of studies have been undertaken to investigate whether or not the RMB exchange rate is at its long run ‘equilibrium’ level. Because the equilibrium exchange rate affects the competitiveness of a country’s economy, these studies have focused on whether or not the real exchange rate is misaligned with respect to its long-run equilibrium level. One of the main reasons for this concern is that effective management of the exchange rate system could help a country’s economy achieve internal and external balance. Otherwise, it could negatively influence the stability of a country’s financial economy, possibly resulting in regional financial crises. This study estimates time varying values of the equilibrium real effective exchange rate (EREER) and associated exchange rate misalignments for China in recent years (from the first quarter of 1999 to fourth quarter of 2007). The study focuses on the reduced-form equilibrium real exchange rate (ERER) model for developing countries presented by Elbadawi (1994) and follows Edwards’ (1989, 1994) work on models of exchange rate determination. We identify the terms of trade, openness, government expenditure, productivity, and money supply as important explanatory variables of the RMB long-run equilibrium value. We use the Johansen-Juselius (1990) co-integration procedure to analyse our data. Using the ERER model, our results show there is a cointegrating relationship between the real effective exchange rate and its economic fundamentals. Subsequently, compare to other previous studies discussed in Chapter 2, our restricted error-correction model suggests that the extent of the misalignment is not very large, moving in a narrow band of plus and minus 12 percent of the long-run equilibrium level during the sample period. Focusing on the RMB real exchange rate misalignment in recent years, our result shows that the RMB was undervalued by an average of 6.7 percent during the period of 2005Q:3-2007Q:4. Furthermore, our short-run empirical error correction model indicates that, on average, the real exchange rate takes over one quarter to reach its long-run equilibrium level.
12
Howart, David John. "French policy on European monetary co-operation and integration, 1968 to 1994." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302508.
Full text
13
Lima, Roland Nubiga. "Sectoral dynamics of financial co-integration between BRICS and developed stock markets." Master's thesis, Faculty of Commerce, 2019. http://hdl.handle.net/11427/30774.
Full textAbstract:
This study examines the sectoral dynamics of co-integration between the BRICS (Brazil, Russia, India China and South Africa) and developed stock markets, represented by Germany, Japan, the UK and the US, during the four phases of the Global Financial Crisis (GFC), the three phases of the European Sovereign Debt Crisis (ESDC) and the UK Brexit crisis. The sample includes daily sectoral equity indices over the period January 2006 to December 2017. The study applies the ADCC GJRGARCH model to estimate the time-varying correlations across the nine countries within each sector and across sectors within each country, and assesses the conditional correlation dynamics during each of the phases of the three crisis periods. The results support the existence of financial co-integration across sectors and among all the nine countries during the GFC and ESDC. Only developed countries exhibit co-integration during the UK Brexit crisis. While some sectors were less affected during some of the crisis periods, on average, financials were the most affected during the GFC, ESDC and UK Brexit crisis. Further analysis on a crisis phase level reveals that most country pairs and sector pairs exhibit significant increases in conditional correlations in phase two of the GFC and ESDC, limiting the effectiveness of international diversification during this period. The results provide useful insights for policy makers and investors.
14
Rasquinha, Joseph Dominic-Savio. "The integration of the Gulf Co-Operation Council (GCC): problems and prospects." Thesis, University of St Andrews, 1992. http://hdl.handle.net/10023/2754.
Full textAbstract:
The formation of the Gulf Co-operation Council (GCC) in 1981 was perceived by most observers to be a collective security response to the Iran-Iraq war. Despite this view, the group has endured ten years of integration in a turbulent region and has survived: external threats to its sovereignty, Islamic fundamentalism, the decline of oil prices, internal unrest, attempted coups, and the invasion and occupation of a constituent member. This poses the question: has the integration of these countries proved to be a success? This thesis attempts to answer this question with the aid of a three dimensional analysis. The first dimension examines the theory and practice of integration. Its primary objective is to provide an insight into integration. As the GCC can, at best, be categorised as a Customs Union, this chapter concentrates on Free Trade Areas and Customs Union theories and explores their relationships with tariffs, protectionism, developing countries, and politics. A review of the empirical analyses in the field is essential due to the fact that a mathematical technique is applied to GCC trade in the latter part of this thesis. The existence of political, economic and manpower factors are found to be more detrimental to the GCC's interests than its adherence or convergence to the theory and practice of integration. An analysis of these three factors constitutes the second dimension of the thesis. This commences by examining the Islamic antecedents of the member countries, pan-Islamism and nationalism in the 19th century, and Middle Eastern efforts at integration from the decline of the Ottoman Empire to the present. The establishment of the existing GCC nations and an examination of their natural resources, demography, industry, infrastructure, agriculture, and fisheries is covered, as is the impact of the 1990-91 occupation of Kuwait and the BCCI liquidation. A review of manpower factors includes an examination of the labour market in the pre and post 1973 period with emphasis given to the role of expatriate and indigenous labour. In addition, the influence of education, women in the workforce, nationality, and residence policies on indigenous labour is discussed. The third dimension reviews the prospects of the GCC. This is performed through the construction and utilisation of matrices which examine the similarity or dissimilarity of GCC trade to the World, Developed and Developing Countries. United Nations Standard Industrial Trade Category (SITC) data up to 3-digits, has been used to construct twenty seven 22 x 22 matrices. Nine of these matrices indicate GCC trade with the Rest of the World and are linked to economic and financial literature on the Gulf in order to examine their credibility. Eighteen matrices which indicate trade with the Developing and Developed World indentify potential trade creation, trade diversion and prospects. It is the conclusion of the thesis that the GCC has not succeeded in its integration efforts. The lack of co-ordination to perform as a single unit in economic, political, and military areas, the undemocratic political systems, the exploitation of expatriate labour, the segregation of indigenous labour, and most importantly, the wasted opportunities indicated by the matrices of greater trade creation with the Developed and Developing Countries contribute significantly to the ineffectiveness of the group.
15
Mondlane, Angelo Eduardo. "New dimensions in regional economic co-operation and integration in Southern Africa." Thesis, University of Sussex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263161.
Full textAbstract:
In the last three decades regional economic co-operation and integration attracted a great deal of interest in Southern Africa, as elsewhere in the Third World. Early attempts at regional integration in Southern Africa were generally characterised by poor and disappointing performance. Recent changes at both regional and international contexts suggest the need to rethink regional integration as part of an overall economic development strategy and as means to attain further political and security stability. This thesis examines the theory and practice of regional integration in developing countries during the 1960s, 1970s and 1980s. Particular focus is directed at the theoretical and practical implications of different integration approaches for Southern Africa, as well as at the rationale for the revival of this development strategy in the 1990s. Integration schemes of various conceptual natures did not fulfil the expectations included either in the theoretical postulates or in the formal treaties. However, macroeconomic reforms centred in SAPs and their international development context as well as the post-apartheid regional context add new dimensions to regional co-operation and integration for development in the SAR. Among other things they imply a change in the emphasis from inward-looking to outward-looking integration strategies. By yielding the need for reconciling trade liberalisation and RECI this new dimension in integration poses a new challenge to both the contemporary integration approaches and the respective policy implications. Further research is required to determine the optimality of an "adjusted" integration approach, combining elements of the above perspectives.
16
Jakobsson, Erik. "A new approach to Pairs Trading : Using fundamental data to find optimal portfolios." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-104314.
Full textAbstract:
Since its’ invention at Morgan Stanley in 1987 pairs trading has grown to be one of the most common and most researched strategies for market neutral returns. The strategy identifies stocks, or other financial securities, that historically has co-moved and forms a trading pair. If the price relation is broken a short position is entered in the overperforming stock and a long in the underperforming. The positions are closed when the spread returns to the long-term relation. A pairs trading portfolio is formed by combining a number of pairs. To detect adequate pairs different types of data analysis has been used. The most common way has been to study historical price data with different statistical models such as the distance method. Gatev et al (2006) used this method and provided the most extensive research on the subject and this study will follow the standards set by that article and add new interesting factors. This is done through an investigation on how the analysis can be improved by using the stocks fundamental data, e.g. P/E, P/B, leverage, industry classification. This data is used to set up restrictions and Lasso models (type of regression) to optimize the trading portfolio and achieve higher returns. All models have been back-tested using S&P 500 stocks between 2001-04-01 and 2015-04-01 with portfolios changed every six months. The most important finding of the study is that restricting stocks to have close P/E-ratios combined with traditional price series analysis increases returns. The most conservative measure gives annual returns of 3.99% to 4.98% depending on the trading rules for this portfolio. The returns are significantly (5%-level) higher than those obtained by the traditional distance method. Considerable variations in return levels is shown to be created when capital commitments are changed and trading rules, transaction costs and restrictions on unique portfolio stocks are implemented. Further research regarding how analysis of P/E-ratios can improve pairs trading is suggested. The thesis has been written independently without an external client and studied an area that the author found interesting.
17
Macuacua, Eduardo F. "Export expansion as determinant of economic growth in Mozambique: a co-integration analysis." Thesis, University of the Western Cape, 2008. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_2412_1269987891.
Full textAbstract:
The objective of this study is to empirically examine the export-led growth hypothesis in Mozambique using quarterly time series data over the period of 1987-2004, applying a co-integration analysis, Engle and Granger&rsquo
s (1987) Error Correction Model (ECM) and the Granger causality test. The paper explores the causal relationship between economic growth and othe explanatory variables, such as real exports, imports, labour force, gross capital formation, terms of trade, civil war and natural disasters (the last two as dummy variables).
18
Macuacua, Eduardo F. "Export expansion as determinant of economic growth in Mozambique : a co-integration analysis /." Online Access, 2009. http://etd.uwc.ac.za/usrfiles/modules/etd/docs/etd_gen8Srv25Nme4_6032_1269987841.pdf.
Full text
19
Hedman, Rickard. "Dynamics of peptide chains during co-translational translocation, membrane integration & domain folding." Doctoral thesis, Stockholms universitet, Institutionen för biokemi och biofysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-121764.
Full textAbstract:
The biosynthesis of proteins occurs at the ribosomes, where amino acids are linked together into linear chains. Nascent protein chains may undergo several different processes during their synthesis. Some proteins begin to fold, while others interact with chaperones, targeting factors or processing enzymes. Nascent membrane proteins are targeted to the cell membrane for integration, which involves the translocation of periplasmic domains and the insertion of membrane-embedded parts. The aim of this thesis was to gain insights about the dynamics of nascent peptide chains undergoing folding, membrane translocation and integration. To this end, we explored the use of arrest peptides (APs) as force sensors. APs stall ribosomes when translated unless there is tension in the nascent peptide chain: the higher the tension, the more full-length protein can be detected. By using APs, we could show that a transmembrane helix is strongly ‘pulled’ twice on its way into the membrane and that strong electric forces act on negatively charged peptide segments translocating through the membrane. Furthermore, we discovered that APs could be used to detect protein folding and made the surprising discovery that a small protein domain folded well inside the ribosomal tunnel. Finally, we explored the arrest-stability of a large set of AP variants and found two extremely stable APs.
20
Ayinde, OE, M. Munchie, and GB Olatunji. "Effect of climate change on agricultural productivity in Nigeria: A co-integration model approach." Kamla Raj Enterprise, 2011. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000781.
Full textAbstract:
Climatic fluctuation is putting Nigeria’s agriculture system under serious threat and stress. The study of the
effect of climate change on agricultural productivity is critical given its impact in changing livelihood patterns in the
country. Descriptive and co-integration analysis are the techniques used to analyze the Time series data used in this work.
The finding demonstrates that the rate in agricultural productivity is persistently higher between 1981 and 1995, followed
by a much lower growth rate in the 1996–2000 sub period. There was variation in the trend pattern of rainfall. Temperature
was not relatively constant either. The Augmented Dickey-Fuller test for unit root revealed that agricultural productivity is
not stationary and likewise the annual rainfall but became stationary after the differencing. Annual temperature on the
other hand is stationary at its level. Temperature change was revealed to exert negative effect while rainfall change exerts
positive effect on agricultural productivity. However previous year rainfall was negatively significant in affecting current
year agricultural productivity. It is recommended that if agricultural productivity was to be increased and sustained,
environmentally and agricultural sensitive technologies and innovations that can prevent climate fluctuation should be
encouraged.
21
Testas, Abdelaziz. "Problems and prospects for economic co-operation and integration in the Maghreb (North Africa)." Thesis, University of Leeds, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432174.
Full text
22
Kulinska, Maria. "Digital tools for developing customized co-design platform with integration of comfort and fashion." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1I046/document.
Full textAbstract:
Malgré les progrès technologiques modernes, l'industrie du vêtement est toujours ancrée dans une approche traditionnelle en 2D et en 3D lors d’essayage virtuel. La question fondamentale de l’accessibilité aux données morphologiques du consommateur en ligne n'a toujours pas été résolue de manière appropriée. De plus, l’interactivité et le relationnel entre le corps humain et le vêtement ne sont pas suffisamment explorés pour atteindre une performance satisfaisante lors de l'essayage du vêtement en ligne. Mes travaux de recherche ont donc pour objectif de combler ces lacunes en proposant une plate-forme numérique intégrant à la fois la connaissance des experts du secteur de l’habillement (ajustement et confort), et les retours sensoriels des clients (au porté du produit) en misant en place une nouvelle stratégie de conception de vêtement en 3D afin de calculer et d’ajuster les valeurs de l’aisance 3D de celui-ci, comme les points clefs lors de la perception et la satisfaction du produit par le client. C’est à partir d’une méthode de classification supervisée associée à un descripteur de forme 2D que nous avons retrouvé le morphotype du client en 3D avec son avatar. Cette relation complexe entre la reconnaissance du corps porteurs et la conception de vêtements 3D approprié dans essayage virtuel a été testée et analysée dans le cadre de ce projet pour bâtir une solution de conception adaptée à un environnement à distance. À cette fin, nous avons présenté les principes de la modélisation du vêtement directement adaptés à la morphologie du porteur afin de couvrir toute la gamme de formes et de mesures corporellesDespite modern technological progresses, the apparel industry is still anchored in the traditional 2D-to-3D design approach. Additionally, the aspects of the relation between human body and garment are not sufficiently explored in order to provide satisfactory performance of virtual try-on in the aspects of providing not only right fit and comfort to the customer but also avoiding returns to the retailer. However the main aspect is a lack of appropriately resolved issue of consumers’ body recognition in an online environment and proper 3D design methodology for individual client. In my PhD research, we challenge those gaps by proposing a foundation of a digital and knowledge-based platform for garment design and fit and comfort evaluation by integrating customers' and experts’ knowledge with the design parameters. By building a new 3D design strategy, we proposed an original method to calculate and adjust the 3D ease allowance values, which constitutes the key issues of satisfaction perception. Our 3D design method is linked to the consumer’s virtual representation, which come from a new pattern recognition method permitting to identify individual morphology from a single web-camera. It was experimentally shown that using the supervised method to create 2D shape descriptors enables to detect wearers’ morphotypes for a target population. The complex relationship between wearers’ body recognition, 3D garment design and garment fitting in virtual try-on has been tested and analyzed in the scope of this research project to build a suitable design solution applied to the remote environment
23
Baysal, Baris. "Inflation Convergence between Germany and Greece, Italy, Spain, Sweden, Turkey : A co-integration Analysis." Thesis, Högskolan Dalarna, Nationalekonomi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-35864.
Full textAbstract:
This paper looks for evidence of co-integration to the German inflation rate between the countries Greece, Italy, Spain, Sweden and Turkey. The method applied is based on econometrics since some certain statistical tests need to be performed to obtain more accurate results. The main tests used are Dickey-Fuller and Augmented version of this test which is vital to test for unit-root and co-integration in this paper. Since the data need to be stationary to perform the analysis in this paper, second difference and the deseasonalisation methods are also used for this purpose. Deseasonalisation method helps this paper progress in two means; to determine the months which have seasonal effect and to form another model with the help of the seasonal months, to obtain stationary series. Finally the original co-integration model is then tested again after deseaonalisation with Dickey-Fuller and Augmented Dickey-Fuller tests. After the tests, I found evidence that Greece, Italy, Sweden, and Turkey are co-integrating with German inflation rate whereas there is no evidence for Spain.
24
Oviosu, Olujimi Adeyemi. "Type Iα PKA as a co-incidence detector : integration of cAMP and oxidant signals." Thesis, King's College London (University of London), 2016. https://kclpure.kcl.ac.uk/portal/en/theses/type-i-pka-as-a-coincidence-detector(9e8418f7-f697-45bc-9dfd-6e86c7b4e940).html.
Full textAbstract:
Protein kinase A (PKA) is activated by elevated intracellular cAMP downstream of β-adrenergic signalling. PKA’s subcellular localisation is determined by its affinity for A-kinase anchoring proteins (AKAPs), scaffolds that sequester PKA proximal to its substrates. The regulatory RIα subunits present in type I PKA can form two intermolecular disulphide bonds, each flanking its AKAP-binding domain, in response to oxidants. Rationally this change in the redox state of PKARIα may alter its affinity for AKAP, with potential for consequential regulation of substrate phosphorylation. I made the novel observation that co-treatment of cells with H2O2 and cAMP caused increased global PKA substrate phosphorylation compared to cAMP or H2O2 alone in HEK 293 cells. This suggested RIα serves as a co-incidence detector that integrates the two signals to synergistically enhance PKA substrate phosphorylation. Chronic cAMP treatment increased PKARIα expression in HEK 293 cells and PKARIα was also upregulated in a mouse model of hypertrophy, whilst PKARIIα was downregulated. This may represent a switch to an oxidant sensitive PKA signalling phenotype during chronic β-adrenergic stimulation. AKAP7 was identified as a potential redox-dependent PKARIα AKAP. Examination of the AKAP7 crystal structure revealed putative redox sensitive cysteines adjacent to its A-kinase binding domain, leading to the hypothesis that the redox state of this AKAP may alter its affinity for PKARIα. I developed and validated the ‘PEG-maleimide switch assay’, a method used to identify proteins that are susceptible to reversible oxidative modification. Using the PEGmaleimide switch assay I found AKAP7 to be insensitive to oxidation. Furthermore, I demonstrated that PKARIIα, but not PKARIα, is a binding partner for AKAP7δ and this interaction was redox modulated. I described, for the first time, that cAMP can modulate PKARIα disulphide dimer levels. DTTdependent PKARIα reduction was potentiated by cAMP, and cAMP-agarose induced PKARIα reduction. Furthermore, a mutant PKARIα that could not bind cAMP formed disulphide-linked complexes under oxidative conditions. These complexes may be cAMP-regulated intermediates that form during a novel oxidant-dependent mechanism of PKARIα targeting to AKAPs. LC-MS/MS identified the novel AKAP tubulin as part of a disulphide linked complex with PKARIα. Consistent with the hypothesis that oxidants target PKARIα to tubulin, phosphorylation of the microtubule associated protein GEF-H1 was enhanced after cotreatment with cAMP and H2O2 compared to cAMP alone. Thus PKARIα is a co-incidence detector at the interface of cAMP and oxidant signalling that is able to integrate both modalities to fine-tune phosphorylation events.
25
Åsman, Andreas. "Value co-creation via smartphone applications." Thesis, Karlstads universitet, Avdelningen för företagsekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-36279.
Full textAbstract:
The purpose of this thesis is to describe how value propositions can be seen as an operant resource in a wireless environment, for service providers’ opportunity to co-create value with their customers. To see how a service provider offer service in a wireless environment interviews have been conducted at Westra Wermlands Sparbank with the focus on service offered through a smartphone application. The findings in the empirical study was that the service provider does not have the opportunity to actively instruct its customers in a wireless environment since the majority of the customers get the smartphone application on their own without processing from the service provider. What the service provider therefore can do is to integrate its instructions into the smartphone application so it is easy to understand and to show the customers what possibilities they have when using it. Thereby the offered value proposition can be seen as an operant resource in a wireless environment. Moreover, the service provider gets the opportunity to co-create value with its customers.
26
Henriques, Helga Maria da Silva Rafael. "Integração profissional dos enfermeiros espanhóis no sistema de saúde português: caso particular: Centro Hospitalar de Torres Vedras." Master's thesis, Universidade de Évora, 2005. http://hdl.handle.net/10174/15763.
Full textAbstract:
Os acontecimentos da sociedade actual, irrefutavelmente condicionados pela tendência globalizante dos mercados, pautam-se por importantes transformações ao nível dos contextos de acção e das práticas de gestão. A diversidade cultural em contexto de trabalho ganha uma nova expressão ao nível da enfermagem, com a admissão de enfermeiros espanhóis em organizações de saúde portuguesas. O interesse por esta problemática motivou a realização dum estudo exploratório de carácter qualitativo, cujo principal interesse consiste em dar resposta a duas perguntas de investigação: Como se processa a integração profissional dos enfermeiros espanhóis no sistema de saúde português? Que medidas a implementar no sentido de melhorar a integração destes profissionais nas organizações de saúde? O processo de integração profissional dos enfermeiros espanhóis no sistema de saúde português resulta quer da adaptação do recém-chegado ao contexto de trabalho, quer do ajustamento da organização de saúde aos seus elementos. Desta coparticipação nos locais de trabalho resulta a integração profissional, que ocorre segundo três planos: a integração estrutural, a integração instrumental e a integração relacional. Os resultados demonstram que a integração instrumental é mais valorizada pelos entrevistados do que a integração estrutural e que a dimensão relacional atravessa todo o processo de integração. Os aspectos relacionados com a mudança de país são aqueles que mais interferem negativamente no processo de integração dos entrevistados. A interacção estabelecida com os outros foi identificada como o factor que mais interferiu positivamente na integração profissional, sendo a competência inter-relacional fundamental para que se verifique aprendizagem e adaptação nos locais de trabalho. Os resultados desta investigação acrescentam um conjunto de novos dados que ajudam ao entendimento da problemática da integração profissional dos enfermeiros espanhóis nas organizações de saúde portuguesas, resultados possivelmente a aplicar e/ou comparar numa situação de integração profissional dum estrangeiro qualificado numa organização de saúde portuguesa, ou em qualquer outra área, em qualquer outro país. ***/Abstract - The happenings of today’s society, undeniably ruled by the globalization tendency of markets, are bound to the important changes in action background and management practice. Cultural diversity in labour context gains a new expression in terms of nursing, due to the hiring of Spanish nurses by Portuguese health organizations. The interest on this issue lead to a qualitative exploration study, whose main interest is to answer two research questions: How does the Spanish nurses ‘professional integration in the Portuguese health system work? What measures should be implemented towards the improvement of the integration in health institutions of these professionals? The process of professional integration of Spanish nurses is both the result of the newcomers’ adaptation to the labour context and the adjustment of the health organization to its elements. From this co-participation in the work places comes professional integration, this happens in three levels: structural integration, instrumental integration and relational integration. Results show that instrumental integration is more valued by the interviewees than structural integration and that relational dimension goes through all integration process. The aspects related to changing country are those which most negatively interfere in the interviewees” integration process. The interaction established with others was identified as the one which interfered most positively in professional integration, inter-relational competence proved to be fundamental for the learning and work place adaptation. The results of this research add a set of new data that helps understanding the issue of Spanish nurses' professional integration in Portuguese health organizations, results to, possibly, apply and/or compare in the professional integration of a qualified foreigner in a Portuguese health organization, or in any other area, in any other country.
27
Huang, Gang. "Compact physical models for power supply noise and chip/package co-design in gigascale integration (GSI) and three-dimensional (3-D) integration systems." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26619.
Full textAbstract:
Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.Committee Chair: Meindl, James D.; Committee Member: Bakir, Muhannad S.; Committee Member: Davis, Jeffrey A.; Committee Member: Gaylord, Thomas K.; Committee Member: Kohl, Paul A.; Committee Member: Naeemi, Azad. Part of the SMARTech Electronic Thesis and Dissertation Collection.
28
Andersson, Stefan, and Aina Svensson. "Repositories Recreated : Working Towards Improved Interoperability and Integration by a Co-operative Approach in Sweden." Uppsala universitet, Universitetsbiblioteket, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-200993.
Full textAbstract:
Recently the technological and organizational infrastructures of institutional repositories have been questioned. For example the British so-called Finch report from last summer argued that further development, as well as higher standards of accessibility of repositories, are needed in order to make them better integrated and interoperable to ultimately bring greater use by both authors and readers. Not only the technical frameworks and presumably low usage levels are criticized but also the lack of “clear policies on such matters as the content they will accept, the uses to which it may be put, and the role that they will play in preservation”. The report concludes that: “In practice patterns of deposit are patchy”. As in the UK, today, all universities and university colleges in Sweden, except a couple of very small and specialized ones, do have an institutional repository. A majority (around 80%) are working together on a co-operative basis within the DiVA Publishing System with the Electronic Publishing Centre at Uppsala University Library acting as the technical and organizational hub. Because the system is jointly funded, and the members contribute according to their size, it has been possible even for smaller institutions with limited resources to run a repository with exactly the same functionalities as the biggest universities. In this presentation we want to demonstrate the ever-increasing importance of institutional repositories in Sweden. Starting more than a decade ago the DiVA Consortium has, for some time, been addressing the problems now raised by the Finch report in a number of areas.
29
Morrow, Joshua B. "Co-Designing with Veteran Students:Incorporating Co-Design Thinking to Understand Current and Future Experiences of Veterans in a University Environment." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523558953618592.
Full text
30
Åkesson, Maria. "Role constellations in value co-creation : a study of resource integration in an e-government context." Doctoral thesis, Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-8701.
Full textAbstract:
The contribution of the present thesis is describing and explaining how value is co-created by addressing customer-employee role constellations during service encounters. There is a specific focus on customers’ and employees’ resource integration when co-creating value. The thesis consists of five separate papers, one of which is a literature review and four are empirical papers. The empirical papers are based on data from the public employment service and the customs service inSweden. The thesis offers two main contributions; the first of which is to service research by expanding knowledge of resource integration and value co-creation using e-government as the empirical context for outlining customers’ and employees’ value co-creation. The second contribution concerns which roles customers and employees enact during resource integration when value is being co-created. It was found that the roles of the employees were; interactor; customer oriented party, co-creator, and empowered party, while a customer can have the role of information integrator, accessibility needer, dialogue keeper, and/or knowledge transferee. Based on these two contributions, the thesis outlines understandings regarding role constellations in value co-creation. The role constellations suggest that customers and employees enact roles that impact how their resources are integrated. Finally, the thesis contributes towards building a theory of value co-creation by proposing that the ten foundational premises of S-D logic, together with the four theoretical propositions and the role constellations presented in this thesis, should be seen as an approach to building a theory of value co-creation. Together, these three building blocks offer the following explanation as to what occurs when a customer and an employee co-create value: (1) The ten foundational premises focus on resource integration and value co-creation. (2) The four theoretical propositions offer the explanation that resource integration occurs in the context of roles since a role decides how to use the knowledge and skills. (3) The role constellations give concrete examples of how customers and employees integrate their resources to co-create value.
31
Oliveira, Sandra Cristina Santos. "Determinantes da competitividade das exportações brasileiras agregadas e setoriais: uma análise VAR (2000-2006)." reponame:Repositório Institucional da UFBA, 2007. http://www.repositorio.ufba.br/ri/handle/ri/8928.
Full textAbstract:
114f.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-03-13T14:02:58Z No. of bitstreams: 1 Sandra%20Oliveira%201.pdf: 2033579 bytes, checksum: 3e405e708e055309e91c3cf3e2964f6e (MD5)
Approved for entry into archive by Vania Magalhaes(magal@ufba.br) on 2013-03-14T13:20:45Z (GMT) No. of bitstreams: 1 Sandra%20Oliveira%201.pdf: 2033579 bytes, checksum: 3e405e708e055309e91c3cf3e2964f6e (MD5)
Made available in DSpace on 2013-03-14T13:20:45Z (GMT). No. of bitstreams: 1 Sandra%20Oliveira%201.pdf: 2033579 bytes, checksum: 3e405e708e055309e91c3cf3e2964f6e (MD5) Previous issue date: 2007
Esta dissertação tem como principal objetivo investigar alguns dos principais determinantes da competitividade dos setores exportadores brasileiros apontados pela literatura teórica e empírica. No conjunto das teorias do comércio internacional, estes são diversos, mas muitas dessas teorias sugerem que deve haver uma relação entre produtividade e exportações, embora isso não valide uma teoria particular. Ademais, pode-se perguntar qual o papel cumprido pela produtividade do trabalho no desempenho do setor exportador brasileiro recente e qual sua importância relativa frente aos outros determinantes comumente identificados com a demanda e/ou a oferta de exportações, notadamente a taxa de câmbio real. Dar respostas a essas perguntas também é objetivo fundamental. Para atingir o que se propõe, exportações e outras variáveis candidatas a estabelecerem uma relação de co-integração são submetidas a testes cujo objetivo é verificar se essa relação é compatível com os dados disponíveis em séries de tempo. A fim de permitir a inclusão da produtividade do trabalho como variável ?explicativa? das exportações nesses dois níveis de agregação, foram usadas duas bases diferentes de dados. Câmbio real é outra variável também inclusa em ambos os níveis. Utilização da capacidade produtiva, que tradicionalmente é compreendida como uma proxy para o nível de atividade doméstica, e importações mundiais, proxy da renda externa, são adicionalmente inclusas no modelo das exportações totais. Com o conjunto de dados disponíveis, essas especificações são as que melhor permitem a inclusão da produtividade do trabalho, que, conquanto seja identificada como importante determinante das exportações, raramente é considerada nos trabalhos empíricos aplicados ao Brasil, salvo naqueles mais recentes que tomam a firma como unidade de análise. Após testes de raiz unitária (tanto convencionais como aqueles que consideram a possibilidade de uma única quebra), se processos integrados de primeira ordem forem compatíveis com os dados, são empreendidas as metodologias de Engle-Granger e de Johansen, o teste de Gregory-Hansen e, quando necessário, um procedimento para estimação do modelo vetorial de correção de erros aplicando-se um ?estimador simples de dois passos? (simple two step ? S2S).
Salvador
32
Eriksson, Victoria. "Interlinked Roundwood Markets in Sweden, Norway and Finland : An econometric study of roundwood assortment prices." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-71390.
Full textAbstract:
Market integration is a frequently discussed topic. This study presents an econometric analysis of the interlinkages between the Swedish, Norwegian, and Finnish coniferous roundwood assortment markets by conducting the Johansen’s co-integration test. It also investigates the directional causality between markets concluded integrated. The data utilised consists of quarterly, nominal prices for pine, and spruce saw logs and pulpwood for each country. Because of issues regarding stationary price series, the co-integration test could only be tested on five markets; Swedish and Norwegian pine saw logs and Swedish, Norwegian and Finnish spruce pulpwood. Swedish and Norwegian pine saw log prices were found integrated according to the Johansen’s test, but no relationship was found when performing the Granger causality test, implying that the underlying assumption of non-stationary prices may not have been fulfilled. No linkages were found concerning the spruce pulpwood markets; neither for all three countries nor bi-variate.
33
Ahyoune, Saiyd. "Heterogeneous Integration of RF and Microwave Systems Using Multi-layer Low-Temperature Co-fired Ceramics Technology." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/459117.
Full textAbstract:
The aim of this work is the development of a modelling methodology for the fast analysis of non-radiative multilayer RF passive components without compromising solution accuracy. Instead of following a compact model approach, oftenly used in integrated technologies, the method is based on a specialized quasi-static partial element equivalent circuit (PEEC) numerical solver. Besides speed and accuracy, the solver can be embedded in circuit simulators; thus, models are already available in the schematic entry. Using this framework, model scalability is enhanced in terms of geometry, substrate cross-section, material properties, topology and boundary conditions.
The dissertation starts showing the actual performance of the obtained solver and the motivations beneath its development. Then, the description about solver development is splitted in three parts, but all of them are interrelated. First, the PEEC formulation is adapted according to relevant electromagnetic behaviour of the component. It is worth stressing that a different perspective related to the principle of virtual work is used in this formulation. The second part deals with the evaluation of partial elements, the core of the solver. It is carried out using analytical space-domain close-form solutions of the Green’s function (GF) of the substrate. Partial elements are then assembled into a mesh. Therefore, the importance of the mesh up on solution accuracy is discussed in the last part and a basic layout aware mesh generator is proposed.
Practical application of the methodology includes the implementation of a library of RF passives for multilayer substrate. For validation, the chosen substrate is a low temperature co-fired ceramics (LTCC) technology. Different set of devices have been fabricated, characterized and compared against model prediction. In addition, the obtained results are also verified using state-of-the-art electromagnetic solvers.El objetivo de este trabajo es el desarrollo de una metodología de modelado para el análisis rápido, pero sin comprometer la precisión de la solución, de componentes pasivos no radiativos de RF en substratos multicapa. El método se basa en el algoritmo numérico cuasi-estático de los elementos parciales de circuito equivalente (PEEC). Éste puede ser incorporado en simuladores de circuitos; por tanto, los modelos ya están disponibles en la entrada de esquemático de forma transparente para el diseñador de circuitos. Utilizando este marco, la escalabilidad del modelo se mejora en términos de la geometría, la definición del corte tecnológico, las propiedades del material, la topología del componente y las condiciones de contorno electro-magnéticas. Esta disertación comienza mostrando las motivaciones que han llevado a su desarrollo y la capacidad real del método de resolución obtenido. A partir de aquí, se realiza la descripción de todo el desarrollo del marco numérico que se divide en tres partes que están interrelacionadas. En primer lugar, la formulación PEEC se adapta según el comportamiento electromagnético real del componente. Vale la pena subrayar que en esta formulación se utiliza una perspectiva diferente a la habitual y que está relacionada con el principio de los trabajos virtuales de d’Alembert. La segunda parte trata de cómo se evalúan los elementos parciales y constituye el núcleo principal del algoritmo. Se lleva a cabo utilizando soluciones analíticas de la función de Green (GF) del sustrato en el dominio espacial. Los elementos parciales, que forman la malla numérica del modelo, se ensamblan en la matriz del sistema siguiendo un procedimiento de análisis nodal modificado (MNA). En la última parte, se discute la importancia de la malla sobre la precisión de la solución y se propone un generador de malla basado en la física del componente y no sólo en la descripción de la geometría. Como aplicación práctica de la metodología, se realiza la generación de una biblioteca de componentes pasivos RF para sustratos multicapa.
34
Lizam, Mohd. "Property market relationship : price discovery and co-integration : a case study of the Malaysia property market." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=185645.
Full textAbstract:
This thesis examines the relationship between two property investment markets within the context of price discovery and co-integration. This thesis is different from other similar studies since the price discovery process is examined by employing a transaction based data. Using Malaysia’s property market as a case study provides this thesis with the opportunity to use transaction-based information. In addition, it has been noted that many studies on price discovery and co-integration have focused on markets that are mature and where the relevant market information is available. Since no similar information is available as far as Malaysia property market is concerned, this thesis requires the construction of a commercial property index. The construction of the index based on transaction information is a prerequisite for subsequent analyses. A hedonic method is considered for this task and the Ordinary Least Squares (OLS) estimator has been employed to produce respective indices. Vector Autoregressive as well as Engle and Granger Co-integration tests have then been employed to examine the relationship between direct and indirect markets. Findings from both analyses indicate that price discovery emerges from the indirect to the direct market. Evidence of long-run co-integration with faster adjustment towards equilibrium suggests no diversification benefit can be achieved between direct and indirect property markets. This finding reasserts the efficiency of indirect property markets in absorbing information. The originality of this thesis comes in the form of the data provided for the analysis. It has been recognised that this is not the first study to use transaction-based information. Nevertheless, the significant contribution of this thesis lies in the time-series data of direct commercial property which was developed from the market’s actual transaction information, none of which previously existed. A similar study is recommended for a mature property market that is transparent and open. Such markets seem to provide a direct property market that is much more efficient.
35
Zhao, Wanying. "An exploration of the integration of speech with co-speech gesture with non-invasive brain stimulation." Thesis, University of Hull, 2017. http://hydra.hull.ac.uk/resources/hull:16482.
Full textAbstract:
The current PhD project focuses on the integration of gesture with their co-occurring speech with the use of non-invasive brain stimulation. The project investigated ‘where’ and ‘when’ gesture-speech integration takes place. Building on the paradigm of Kelly et al., (2010) which provides a reaction time index of automatic gesture-speech integration, it was tested whether left middle temporal gyrus (pMTG) as well as left Inferior frontal gyrus (LIFG) are causally involved in gesture-speech integration. A follow-up study investigated the time window for this integration of gesture and speech in pMTG. This study found that gesture has a priming effect on the semantic retrieval of speech. This effect only manifested itself after gesture had been clearly understood and before the semantic analysis of speech. Based on the common coding hypothesis, this finding was interpreted in terms of gesture and speech originating from a common coding system, with both LIFG and pMTG as its neural underpining, enabling bi-directional influences between both domains.
36
Dongo, Kouadio Kouman. "Forecasting the Chinese Futures Markets Prices of Soy Bean and Green Bean Commodities." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/math_theses/23.
Full textAbstract:
Using both single and vector processes, we fitted the Box-Jenkin’s ARIMA model and the Vector Autoregressive model following the Johansen approach, to forecast soy bean and green bean prices on the Chinese futures markets. The results are encouraging and provide empirical evidence that the vector processes perform better than the single series. The co-integration test indicated that the null hypothesis of no co-integration among the relevant variables could be rejected. This is one of the most important findings in this paper. The purposes for analyzing and modeling the series jointly are to understand the dynamic relationships over time among the series and improve the accuracy of forecasts for individuals series by utilizing the additional information available from the related series in the forecasts for each series.
37
Abuk, Nese. "The Intraday Lead-lag Relationship Of Spot And Futures Markets In Turkey: Co-integration And Causality Analyses." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613292/index.pdf.
Full textAbstract:
This study is concerned with the lead-lag relationship between Turkish spot equity and derivatives markets. In the study, the spot equity market is represented by the ISE-30 Index. In order to compare the structure of the two markets, the futures contract written on the ISE-30 Index, namely TURKDEX-ISE 30, is chosen to represent the derivatives market. The analysis is performed over the sample period beginning February 4, 2005 and ending on December 10, 2010 which actually covers the entire time span from the establishment of the TURKDEX market until the end of last year. This sample period is examined on the basis of 5-minute intervals during the trading day, enabling a more detailed and accurate evaluation of the lead-lag power of the markets. The main methods applied to examine the structure of information flow between the markets are co-integration and causality analyses. Different approaches of these basic methods are employed as well in order to provide robust results. An additional robustness check is provided through examining the relationship between the markets by using both raw and filtered prices. ARMA filtering is performed on the prices and these findings are compared to those obtained by raw prices in order to avoid the problem of infrequent trading. Outcomes of both raw and filtered price analyses reveal that in 2006, 2007 and 2009 the relationship between the markets is bi-directional, whereas in 2008 and 2010, futures market strictly leads the spot market. Filtered and raw analyses do not have a definitive conclusion regarding the lead-lag relationship in 2005. For this year, while the raw data support a bi-directional relationship, ARMA filtering indicates that the spot market leads the derivatives market.
38
Bajulaiye-Shasi, M. O. K. "The process of economic co-operation and integration in the West African subregion : A long-run perspective." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384102.
Full text
39
Grosser, Deborah A. "A Multiple Case Study of Co-Teachers’ Technology Integration Knowledge: How It Is Held, Built, and Shared." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1499449939.
Full textAbstract:
This multiple case study explored how secondary-level co-teachers hold, build, and share knowledge related to technology integration. Co-teaching, a special education service delivery model, involves a general and special educator who share responsibility for planning, delivering, and assessing instruction (Friend, 2014). Through the lens of the Technological Pedagogical Content Knowledge (TPACK) framework (Mishra & Koehler, 2006), I explored the perspectives and experiences of four co-teaching pairs who regularly integrated technology into instruction. Study results suggested that these teachers held knowledge, beliefs, and values that influenced their classroom practices. The micro-level contextual elements in the teachers’ workplaces, along with meso-levels supports, influenced how the teachers built and shared knowledge with and from each other. their collaborative relationships, which were based upon parity, respect, and communication, supported a professional work environment of sharing and learning. as these teachers engaged in dialogue within their teaching and learning partnerships, individually-held knowledge (TPACK) was distributed between the co-teachers. Content-, grade-, and school-level collaborations addressing technology integration also resulted in the distribution of TPACK school-wide. Implications of these results include recommendations for how school leaders may support effective co-teaching, which can enhance teachers’ professional learning related to technology integration and encourage the development of distributed knowledge.
40
Kanwal, Uzma, and Muhammad Asim Sardar. "Impact of International Trade on Sub Saharan Africa's Economic Growth." Thesis, University of Skövde, School of Technology and Society, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-3522.
Full textAbstract:
Abstract
The main objective of our paper is to investigate whether expansion in exports can lead to improve economic growth of Sub-Saharan African countries for the period 1970-2006. Four macro economic indicators (real GDP, Trade balance, Government expenditure and
Investment) are used in our model to carry out our analysis concerning Sub Saharan African countries.
Time series techniques such as unit root test (Augmented Dickey Fuller test) and co integration test (Johansen’s procedure) are used to find out whether there is a long run relationship between economic growth and trade balance.
The results of the unit root test indicate that all series are stationary after first difference, with I (1). Johansen’s co integration test showed that co integration (long run relationship) exists between GDP and Trade balance, as we got significant eigenvalues and found co integration between all of the four variables which shows that they are co integrated with each other and indicates a long run relationship.
Our results indicate that for the time period of 1970 to 2006, Sub Saharan African countries experienced a simultaneous increase in economic growth and trade balance as well as in investment and Govt expenditure.
Key words: exports, economic growth, unit root, co integration, Sub-Saharan Africa
41
Philippe, Julien. "Technologie de fabrication et analyse de fonctionnement d'un système multi-physique de détection de masse à base de NEMS co-intégrés CMOS." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT099/document.
Full textAbstract:
Ces dernières décennies ont vu l'émergence des microsystèmes électromécaniques (MEMS) grâce notamment aux techniques de fabrication employées dans l'élaboration des transistors. L'utilisation de différentes propriétés physiques (électroniques, mécaniques, optiques par exemple) a permis la construction d'un large panel de capteurs miniaturisés. Résultant de la miniaturisation sub-micrométrique des MEMS, les nanosystèmes électromécaniques (NEMS) constituent un tout nouveau type d'objet permettant d'adresser des applications nécessitant un très haut niveau de sensibilité et de résolution, comme la détection de gaz, la spectrométrie de masse ou la reconnaissance de molécules faisant traditionnellement appel à des machines très volumineuses. L'utilisation de ces NEMS requiert cependant un circuit électronique CMOS afin de lire et d'exploiter le signal en sortie de résonateur et servant également à la mise en place d'une boucle oscillante (boucle à verrouillage de phase ou boucle auto oscillante par exemple), architecture idéale pour la détection de masse en temps réel. L'intégration du circuit CMOS avec les résonateurs NEMS constitue un aspect critique quant à la fabrication de capteurs de haute performance. La solution optimale consiste à intégrer de manière monolithique ces deux parties sur la même puce, permettant ainsi de réduire la dimension du capteur et d'améliorer la transmission du signal électrique entre les résonateurs et le circuit CMOS. Cette thèse propose dans un premier temps d'analyser l'intérêt de cette co-intégration du point de vue électrique. Dans un second temps, cette thèse portera sur le développement d'une approche originale visant à co-intégrer de manière monolithique les nano résonateurs au-dessus du circuit CMOS et des interconnexions. La dernière partie portera sur le design d'un détecteur de masse composé d'un réseau compact de NEMS co-intégré CMOSDuring these last decades, Very Large Scale Integration (VLSI) techniques, well developed for transistors, have been used for the Micro ElectroMechanical Systems (MEMS) devices. Thanks to the combination of different physical properties (such as electronic, mechanical, optical etc.) the fabrication of various kinds of miniaturized sensors has been made possible. The sub-µm downscaling of MEMS has allowed the emergence of a new kind of devices called NEMS (for Nano ElectroMechanical Systems) and the possible use of the electromechanical systems in specific applications in which a high level of sensitivity and resolution is necessary, such as gas sensing, mass spectrometry and molecules recognition, to replace traditional bulky machines. Nevertheless, the use of these NEMS requires a CMOS electronic to enhance NEMS resonators readout and to implement closed-loop oscillators (e.g. phase-locked loop or self-oscillating loop) that provide real-time mass measurements. The integration of the electronic circuit with the resonators is a critical aspect for the fabrication of high performance sensors. The best way consists in monolithically processing these two parts on the same die allowing a size reduction of the sensor and an optimal signal transmission between the NEMS resonators and the CMOS circuit. In a first time, this thesis proposes to analyze the interest of this co integration from an electrical point of view. In a second time, this thesis deals with the development of a 3D co integration in which the nano resonators are fabricated above the CMOS circuit and the interconnections. The final part is focused on the layout design considerations for the implementation of a compact mass sensor based on a NEMS array co integrated with a CMOS
42
Alzaydi, Zyad M. "The impact of quality control initiatives, customer integration and customer co-production on service quality performance : an empirical investigation." Thesis, University of Hull, 2014. http://hydra.hull.ac.uk/resources/hull:16089.
Full textAbstract:
Delivering a high standard of services to customers is recognised as an important objective for any service provider. In order to achieve this goal employees are encouraged to go about their jobs in certain ways, comply with guidelines and in accordance with the strategy drawn by the organisation. Although service quality is difficult to define and measure, research has not stopped looking for processes, tools and business practices so as to improve service quality performance. Literature suggests both practical tools to achieve organisational goals with respect to service delivery and offers theoretical foundations to examine the interrelationships between variables that contribute to those organisational goals. Despite an emerging interest in customer integration and customer co-production in service provision in the Marketing literature, little attention has been paid to the investigation of relationships between customer integration, customer co-production and service quality performance. Based on the facilities-transformation-usage framework of service delivery and control theory, we develop a conceptual framework that examines the impact of combining quality control initiatives (QCIs) on service quality performance. We explicitly consider formal and informal control mechanisms as well as selected elements of the organisation internal environment as antecedents of QCIs. Customer co-production is proposed as a consequence of QCIs, and it is proposed that when customer integration is high the relationship between customer co-production and service quality performance will be strengthened. The conceptual framework is tested using data drawn from hotel managers and employees across the Kingdom of Saudi Arabia; a total of 398 usable questionnaires were analysed. The relationships between variables are tested by applying variance based structural equation modelling. Moderator effects were tested using residual centring. The findings of this study reveal unique results. Environment characteristics positively influence controls in shaping employees’ behaviour. However, contrary to expectations, environment characteristics, specifically, greater procedural knowledge, greater performance documentation and organisational commitment did not strengthen the relationship between customer co-production and service quality performance. Similarly, the notion that higher levels of customer integration enhance the relationship between customer co-production and service quality performance is not supported. Finally, when customer co-production, which takes place when the customer takes a part in the core service provided is high, an improvement in service quality can be observed. The results of this study would benefit service managers to gain a better understanding of how QCIs influence the relationship between customer integration and customer coproduction and service quality performance.
43
Wakamatsu, André. "Delimitação de mercado usando testes baseados em preço: uma análise econométrica." Universidade Presbiteriana Mackenzie, 2011. http://tede.mackenzie.br/jspui/handle/tede/773.
Full textAbstract:
Made available in DSpace on 2016-03-15T19:30:44Z (GMT). No. of bitstreams: 1
Andre Wakamatsu.pdf: 3217691 bytes, checksum: 1c24d8cfb446c335c1b83266a22241de (MD5)
Previous issue date: 2011-02-17Fundo Mackenzie de Pesquisa
The competitive strategy of a firm is defined by choosing one alternative over the rivals, from differentiated activities set to deliver a product or service (strategic positioning). If firms cooperate or collude with each other, they don t have choices conflict and the strategy would not be necessary. To verify if several firms in the same market are in collusion, the responsible economic defense agencies considers the hypothesis that firms are in monopolistic competition (known as the hypothetical monopolist approach). Coe, Krause (2008) made an empirical study with the methods commonly used to evaluate the price-based approaches using synthetic data obtained from a market simulation with differentiated products. However,the authors consider a market structure where firms try to maximize profit without the constraint that, in long run, economic profit is zero. The aim of this work was to generate synthetic data considering the monopolistic competition and analyze if two econometric tests,Augmented Dickey-Fuller (ADF) and co-integration, can be used to delimitate this market structure. Since it was considered that the market consists of firms that have products with substitutes, the trends of the firms prices was stationary over time and therefore the price series should be correlated and co-integrated. In addition, it was analyzed what would happen to the equilibrium prices when an importing company, for example, a product that would be considered a substitute by the consumers, but had no problems related to the increased cost of production in the domestic market. It was observed that the importing firms, when its price was lower than that the other firms in the domestic market, tend to slow the increase of the firms price.
A estratégia competitiva de uma empresa significa escolher uma alternativa em relação aos concorrentes, a partir de um conjunto diferenciado de atividades, para a entrega de um produto ou serviço de valor único (posicionamento estratégico). Se as empresas não tivessem conflito de escolhas, a estratégia não seria necessária. Uma forma delas não terem conflito de escolha é ter uma conduta de cooperação ou conluio. Para se verificar se diversas empresas em um mesmo mercado estão em colusão, os órgãos responsáveis pela defesa econômica considera a hipótese de que as empresas estão em concorrência monopolística (conhecida como abordagem do monopolista hipotético). Coe; Krause (2008) fizeram um estudo empírico com relação aos métodos comumente utilizados para avaliar as abordagens baseadas em preço por meio do uso de dados sintéticos obtidos de uma simulação de um mercado com produtos diferenciados. Entretanto, os autores consideraram uma estrutura de mercado em que as empresas tentam maximizar o lucro, sem a restrição de manter o lucro econômico igual a zero. Neste trabalho, a proposta foi gerar dados sintéticos considerando que as empresas estão em competição monopolística e analisar se dois testes econométricos, Dickey-Fuller ampliado (ADF) e co-integração, servem para delimitar este tipo de estrutura. Uma vez que foi considerado que o mercado é composto de empresas que tem produtos substitutos próximos, a evolução dos preços exercidos pelas empresas foi estacionária ao longo do tempo e, portanto, as séries dos preços eram correlacionadas e co-integradas. Além disso, também foi analisado o que ocorreria com os preços de equilíbrio quando uma empresa importadora, por exemplo,importasse um produto que seria considerado um substituto direto pelos consumidores, mas não tivesse os problemas relacionados ao aumento do custo de produção no mercado nacional.Foi observado que uma empresa importadora, quando exerce um preço menor do que o exercido pelas empresas do mercado nacional, tende a diminuir o ritmo de aumento do preço das outras empresas, disciplinando-as.
44
Duckstein, Michél, and Voorst Job Van. "An exploratory method of customer input integration into product portfolio strategy : A Case Study of Yaskawa Nordic AB." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279748.
Full textAbstract:
Customer-centric business approaches have been theorized over the last decades (Sheth, Sisodia and Sharma, 2000; Sheth, Sethia and Srinivas, 2011; Rajagopal, 2020). However, the active usage of customer input for a successful product portfolio strategy is widespread but not yet fully implemented (Cooper, Edgett and Kleinschmidt, 2002). The co-creation aspects of having two equal partners in performing the product portfolio structuring task is a key issue for managers (Rajagopal, 2020). The aim is to find how customer input can be used as an important influencing factor for the product portfolio strategy. This aim is achieved through an analysis of the most commonly used influencing factors and the expert's assessment of information gathering procedures and their categorisation, supported by the Edvardsson et al. (2012) framework. Furthermore, a framework by Voss (2012) is examined regarding customer integration into project portfolio management to investigated possible additions. As an appropriate method, an exploratory approach with a single case study and semi-structured interviews of experts of the field is selected. The primary data of this case study is compared with a structured literature review, which consists of the latest theories on customer integration into the product portfolio strategy. Four major results are found. First, product portfolio strategy is mainly driven by financial input and not yet by customer input. Second, customer input should be collected through multiple channels. Thirdly, customer input is assessed as being a useful factor for the product portfolio strategy. Fourths the execution of input gathering is currently performed more towards past performances than for future-oriented input as needs and wishes for the product portfolio structuring. Finally, managerial implications with a method is provided for the collection, storage, analysis and distribution of customer input. In conclusion, the implementation fidelity of the future related customer input is not yet performed but desired. The approach of input collection from customers is considered to be valuable, however a suitable method is needed. Furthermore, two new connections can be made for the structuring phase of Voss’s framework and avenues for future research of the customer input integration are presented.Över de senaste årtiondena har det teoretiserats kring affärmodeller koncentrerade kring konsumenterna (Sheth, Sisodia och Sharma, 2000; Sheth, Sethia och Srinivas, 2011; Rajagopal, 2020). Idèn att använda konsumenternas åsikter för att utveckla strategier kring sortimentet är välkänd, men ännu inte helt implementerad (Cooper, Edgett and Kleinschmidt, 2002). Frågorna kring hur två affärspartners tillsammans ska strukturera sina sortiment är av stor vikt för chefer (Rajagopal, 2020). Målet är att undersöka hur konsumenternas feedback kan användas för att påverka strategin avseende sortimentet. Detta uppnås genom en analys av de vanligaste fallen där kunderna påverkat strategin, samt utlåtanden från experter om insamling av information. Vidare undersöks ett ramverk från Voss (2012) vars syfte är att involvera kunderna i utformningen av sortimentet. En fallstudie samt öppna intervjufrågor till experter inom ämnet lade grunden till detta. Den viktigaste datan från studien jämfördes med aktuella teorier kring integration av kunder i utvecklingen av sortimentet. Resultatet visade framför allt fyra tydliga samband. Det första var att strategier kring sortiment framför allt drivs av finansiella faktorer, och inte konsumentkritik. Det andra var att feedback från kunderna borde samlas in från flera olika kanaler. Det tredje var att kundernas kritik värderades högt i utformningen av sortimentet, och det fjärde var att insamlingen av kritik från kunderna ofta fokuserar på utvärdering av tidigare sortiment, istället för att ta in önskemål från kunder om ändringar av sortimentet. Slutligen tillhandahålls en metod för insamling, förvaring, analys och distribution av kundernas kritik. Sammanfattningsvis är exaktheten för insamling av framtidsorienterad kritik ännu inte bra nog, men värderad högt. Att jobba tillsammans med kunderna anses mer värdefullt, speciellt när en lämplig metod är tillgänglig. Dessutom kan två nya kopplingar göras för strukturen i Voss's ramverk, och tillvägagångssätt för framtida forskning på konsumentkritik presenteras.
45
Flodin, Erik, and Anders Sarkissian. "Att Involvera Flera : En studie av konsumenters deltagande och värdeskapande i marknadskommunikation." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-231006.
Full textAbstract:
Studien tog avstamp i det senaste decenniets utveckling inom marknadsteori med avseende på samvärdeskapande, tjänstelogik och konsumenters resursintegrering. Efter att ha läst forskningsartiklar och inlägg i media om ett skifte i synen på konsumenters allt viktigare roll ville vi närmare studera hur den tar sig uttryck inom marknadskommunikation. Studiens syfte blev att bidra till den relativt outvecklade forskningen på området och studera hur en förändrad konsumentroll tar sig uttryck i praktiken. Undersökningen genomfördes med empiriska fallstudier på sju kommunikationskampanjer där konsumenterna i olika grad deltagit och interagerat med företaget. Genom ostrukturerade kvalitativa intervjuer med nyckelpersoner bakom kommunikationskampanjerna, samt insamling av sekundärdata från konsumenter i sociala media sökte vi besvara hur konsumenter kan bidra till värdeskapande inom deltagande marknadskommunikation? Studien visade att konsumenter kan bidra genom att använda och integrera sina fysiska, sociala och kulturella operanta resurser som familjerelationer, nätverk, energi och särskilda färdigheter. De integrerar dels egna typer av operanta resurser i kampanjdeltagandet, men de integrerar också resurser med andra konsumenter och företag. Hur, och i vilken omfattning detta skedde berodde på hur företaget genom att integrera sina resurser konstruerat en interaktiv plattform genom kommunikationskampanjen. I konsumenters frivilliga deltagande, interaktion och relation med företaget kan värde skönjas som det diskuterats i litteratur om tjänstelogik och konsumenters resursintegrering. Brister i dubbelriktad kommunikation, tillgänglighet och möjlighet att påverka gör dock att kommunikationen sällan kan tolkas som samvärdeskapande.
46
HELLQVIST, OSKAR, and ANTON SANDVALL. "Preference Shares – A lead lag analysis of the Swedish real estate sector." Thesis, KTH, Nationalekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198692.
Full textAbstract:
Several researchers have over the past decades criticised the efficient market hypothesis as several studies have presented evidence of causality and co-integrating relationships in inancial markets. As preference shares have become increasingly popular, in recent years, as a mean of raising capital in the Swedish real estate sector, this study investigates the causal relationships between common shares and their corresponding preference share of nine listed Swedish real estate companies. By using daily closing prices over the period Dec 2014 – April 2016, we find weak support for short-run causalities in five of the nine examined pairs but no long-run cointegrating relationships. Further, we find causality running from the largest five firms to the four smallest in the sample firms. These findings violate the weak form of the efficient market hypothesis, which state that asset price fluctuations are random and not possible to forecast by the use of historical asset prices.
47
Cullen, Daniel Kacy. "Traumatically-Induced Degeneration and Reactive Astrogliosis in 3-D Neural Co-Cultures: Factors Influencing Neural Stem Cell Survival and Integration." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7584.
Full textAbstract:
Traumatic brain injury (TBI) results from a physical insult to the head and often results in temporary or permanent brain dysfunction. However, the cellular pathology remains poorly understood and there are currently no clinically effective treatments. The overall goal of this work was to develop and characterize a novel three-dimensional (3-D) in vitro paradigm of neural trauma integrating a robust 3-D neural co-culture system and a well-defined biomechanical input representative of clinical TBI. Specifically, a novel 3-D neuronal-astrocytic co-culture system was characterized, establishing parameters resulting in the growth and vitality of mature 3-D networks, potentially providing enhanced physiological relevance and providing an experimental platform for the mechanistic study of neurobiological phenomena. Furthermore, an electromechanical device was developed that is capable of subjecting 3-D cell-containing matrices to a defined mechanical insult, with a predicted strain manifestation at the cellular level. Following independent development and validation, these novel 3-D neural cell and mechanical trauma paradigms were used in combination to develop a mechanically-induced model of neural degeneration and reactive astrogliosis. This in vitro surrogate model of neural degeneration and reactive astrogliosis was then exploited to assess factors influencing neural stem cell (NSC) survival and integration upon delivery to this environment, revealing that specific factors in an injured environment were detrimental to NSC survival. This work has developed enabling technologies for the in vitro study of neurobiological phenomena and responses to injury, and may aid in elucidating the complex biochemical cascades that occur after a traumatic insult. Furthermore, the novel paradigm developed here may provide a powerful experimental framework for improving treatment strategies following neural trauma, and therefore serve as a valid pre-animal test-bed.
48
Chapman, Val. "Moving experiences : the integration of a neuropsychological approach with parental perceptions in developing an understanding of developmental co-ordination disorder." Thesis, Coventry University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245999.
Full text
49
Chiang, Cheng-Fu, and 江政福. "Multiperiod Bayesian Forecasts of Co-Integration Data." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/57629263182217964416.
Full text
50
Wu, Chiu-Yen, and 吳秋燕. "European Economic Integration and Stock Market Co-movement." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/85575486895079164895.
Full textAbstract:
碩士大葉大學
國際企業管理學系碩士在職專班
97
This study is to investigate the result of economic integration in Europe, which started from January 3, 1995 to December 31, 2007. Meanwhile, Euro countries including Germany, France and Holland and non-Euro countries including United Kingdom, Demark and Sweden had joined the project of economic integration throughout the phases of preparation, declaration, and issuance. This study will focus on the co-movement of percentage of stock reward during three phases of Euro currency to help investors and foundation managers with reducing risk when they proceed with in-ternational investment. We using a multivariate GARCH model by characterizing the time-varying cross-country covariances and correlations. The result indicates that except Germany and Demark Euro countries have most significant co-movement compared to non-Euro countries. Therefore, those who invest funds to Euro-circulated area will suffer the higher risk. But the risk is lowest for non Euro-circulated area and particularly for Demark.