Dissertations / Theses on the topic 'Model of dynamics of the economic system'
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Toni. "Economic model of mine closure and its potential for economic transformation." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-162978.
Full textErdogan, Ezgi. "A Complex Dynamical Systems Model Of Education, Research, Employment, And Sustainable Human Development." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12612138/index.pdf.
Full textReda, Hussein Murad Ali. "A theory for national industrial development presented in a system dynamics model." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/76481.
Full textPh. D.
Metzig, Cornelia. "A Model for a complex economic system." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENS038/document.
Full textThe thesis is in the field of complex systems, applied to an economic system. In this thesis, an agent-based model has been proposed to model the production cycle. It comprises firms, workers, and a bank, and respects stock-flow consistency. Its central assumption is that firms plan their production based on an expected profit margin. A simple scenario of the model, where the expected profit margin is the same for all firms, has been analyzed in the context of simple stochastic growth models. Results are a firms' size distribution close to a power law, and tent-shaped growth rate distribution, and a growth rate variance scaling with firm size. These results are close to empirically found stylized facts. In a more comprehensive version, the model contains additional features: heterogeneous profits margins, as well as interest payments and the possibility of bankruptcy. This relates the model to agent-based macroeconomic models. The extensions are described theoretically theoretically with replicator dynamics. New results are the age distribution of active firms, their profit rate distribution, debt distribution, bankruptcy statistics, as well as typical life cycles of firms, which are all qualitatively in agreement with studies of firms databases of various countries.The proposed model yields promising results by respecting the principle that jointly found results may be generated by the same process, or by several ones which are compatible
Neugebauer, Felix Sebastian. "Tayloring Brazil: a system dynamics model for monetary policy feedback." reponame:Repositório Institucional do FGV, 2011. http://hdl.handle.net/10438/9098.
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The thesis introduces a system dynamics Taylor rule model of new Keynesian nature for monetary policy feedback in Brazil. The nonlinear Taylor rule for interest rate changes con-siders gaps and dynamics of GDP growth and inflation. The model closely tracks the 2004 to 2011 business cycle and outlines the endogenous feedback between the real interest rate, GDP growth and inflation. The model identifies a high degree of endogenous feedback for monetary policy and inflation, while GDP growth remains highly exposed to exogenous eco-nomic conditions. The results also show that the majority of the monetary policy moves during the sample period was related to GDP growth, despite higher coefficients of inflation parameters in the Taylor rule. This observation challenges the intuition that inflation target-ing leads to a dominance of monetary policy moves with respect to inflation. Furthermore, the results suggest that backward looking price-setting with respect to GDP growth has been the dominant driver of inflation. Moreover, simulation exercises highlight the effects of the new BCB strategy initiated in August 2011 and also consider recession and inflation avoid-ance versions of the Taylor rule. In methodological terms, the Taylor rule model highlights the advantages of system dynamics with respect to nonlinear policies and to the stock-and-flow approach. In total, the strong historical fit and some counterintuitive observations of the Taylor rule model call for an application of the model to other economies.
Kellie-Smith, Owen. "Relating forced climate change to natural variability and emergent dynamics of the climate-economy system." Thesis, University of Exeter, 2010. http://hdl.handle.net/10036/115194.
Full textVischio, Andrew Joseph. "An analysis of methodologies to estimate the economic impacts of freight transportation system disruptions." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37284.
Full textMojica, Velazquez Jose Luis. "A Dynamic Optimization Framework with Model Predictive Control Elements for Long Term Planning of Capacity Investments in a District Energy System." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3886.
Full textMerz, Laura. "AUTOMATION-INDUCED RESHORING: An Agent-based Model of the German Manufacturing Industry." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-394212.
Full textРевякін, Г. В. "Закономірності циклічного розвитку глобальної економічної системи (автореферат)." Thesis, ХНУ імені В. Н. Каразіна, 2018. http://dspace.univer.kharkov.ua/handle/123456789/14175.
Full textOliveira, Marcel Ferreira de. "Dinâmica da produtividade: uma abordagem por meio de modelo de fatores dinâmicos." Universidade Federal de Juiz de Fora (UFJF), 2015. https://repositorio.ufjf.br/jspui/handle/ufjf/3135.
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O objetivo desta dissertação é estudar a dinâmica da produtividade total dos fatores (PTF) através de um modelo de fatores dinâmicos e verificar a importância do catch up e outros determinantes da PTF por meio do estimador do GMM Sistêmico, utilizando dados da Penn World Table 9.0 entre 1970 e 2014. Devido à existência de transbordamentos tecnológicos e comércio internacional, é esperado que existam variações comuns entre as produtividades de diferente países. Sendo assim, estimamos um modelo de fatores dinâmicos para as PTFs de um conjunto de países tecnologicamente avançados para capturar esses efeitos. Dessa estimativa fomos capazes de extrair seu fator comum e usá-la como proxy para PTF mundial. Isso nos permite incluir a tendência comum na regressão da PTF e estimar seus efeitos sobre a PTF. Nosso fator comum estimado reflete bem aos principais choques de produtividade que ocorreram no período e a sensibilidade de cada país com relação ao fator comum parece estar negativamente relacionada com o nível de desenvolvimento de cada país – essa correlação parece estar de acordo com o argumento de que há um efeito de catch up na produtividade: países mais distantes da fronteira têm crescimento maior por absorverem mais da tecnologia mundial. Além disso, nossas estimativas para o painel dinâmico estimado utilizando este fator estimado reforça esse resultado.
The purpose of this dissertation is to study the global dynamics of total factor productivity (TFP) through a dynamic factors model and verify the importance of the catch up effect and other determinants of TFP through the System GMM estimator, using data from the Penn World Table 9.0 from 1970 to 2014. Because there’re technological spillovers and international trade, it would be expected to see the existence of common variations in the productivity of different countries. Therefore, we apply a dynamic factor model to these productivities and its growth rates in order to capture these effects. These estimates allow us to extract the common factor and use it as a proxy for the world TFP. It allows us to include the common trend in the dynamic equation in the TFP regression in order to estimate its effects on the TFP. Our estimated common factor captures well the main productivity shocks that occurred in the period, and the sensibility of each country to the common factor seems to be negatively related to its country level of technological development – this correlation is in accordance with the argument that there’s a catch up effect in productivity: countries more distant from the frontier have higher growth rates because there is more room to absorb from the global technology. Moreover, our estimates for the dynamic panel using this estimated factor reinforces this result.
Sánchez, Sánchez Almudena. "Modelling the evolution dynamics of the academic performance in high school in Spain. Probabilistic predictions of future trends and their economical consequences." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/32280.
Full textIn this dissertation, we use epidemiologic-mathematical techniques to model the academic performance in Spain (paying special attention on the academic underachievement) to understand better the mechanisms behind this important issue as well as to predict how academic results will evolve in the Spanish Bachillerato over the next few years. The Spanish Bachillerato educational level is made up of the last courses before accessing to the university or to the work market and corresponds to students of 16¿18 years old. This educational level is a milestone in the career training of students because it represents a period to make important decisions about academic and professional future. In a rst step, in the Chapter 2 we will present a deterministic model where academic performance is analyzed assuming the negative attitude of Bachillerato students may be due to their autonomous behavior and the in uence of classmates with bad academic results. Then, in the Chapter 3, the model is improved based on the idea that not only the bad academic habits are socially transmitted but also the good study habits. Besides, we decompose the transmission academic habits into good and bad academic habits, in order to analyze with more detail which group of students are more susceptible to be in uenced by good or bad academic students. The consideration of quantifying the abandon rates is also a new issue dealt with in it. The adopted approach allow to provide both punctual and con dence intervals predictions to the evolution of academic performance (including the abandon rates) in Bachillerato in Spain over the next few years. The adopted approach allows us to model academic performance in academic levels other than Bachillerato and/or beyond the Spanish academic system. This issue is assessed in Chapter 4, where the model is satisfactorily applied to the current academic system of the German region of North Rhine-Westphalia. To conclude this dissertation, we provide an estimation of the cost related to the Spanish academic underachievement based on our predictions. This estimation represents the investment in the Spanish Bachillerato from the Spanish Government and families over the next few years, paying special attention on the groups of students who do not promote and abandon during their corresponding academic year.
Sánchez Sánchez, A. (2013). Modelling the evolution dynamics of the academic performance in high school in Spain. Probabilistic predictions of future trends and their economical consequences [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/32280
TESIS
Carro, Patiño Adrián. "Individual-based models of collective dynamics in socio-economic systems." Doctoral thesis, Universitat de les Illes Balears, 2016. http://hdl.handle.net/10803/396311.
Full textEl propósito principal de esta tesis es el de contribuir a la comprensión del modo en el que comportamientos colectivos complejos emergen en sistemas sociales y económicos. En particular, nos centramos en tres temas principales: dinámica de opiniones, comportamiento gregario en mercados financieros y competición lingüística. Los modelos de dinámica de opiniones se centran en los procesos de formación de opiniones en el seno de una sociedad compuesta por un conjunto de individuos en interacción y con opiniones diversas. Uno de los principales problemas abordados por estos modelos es el de determinar si estos procesos de formación de opiniones llevan a la emergencia de un consenso en la sociedad, o si llevan a la segregación de los individuos en diferentes grupos. Nos interesamos aquí por situaciones en las que el asunto que se discute permite la existencia de un contínuo de opiniones y por tanto las opiniones pueden ser modeladas como variables reales. En particular, nos centramos en un modelo consistente en dos mecanismos para la evolución de las opiniones: un mecanismo de influencia social, por el cual dos agentes interaccionantes llegan a un compromiso en el punto medio entre sus opiniones, y un mecanismo de homofilia, por el cual dos agentes interaccionan únicamente si la diferencia entre sus opiniones es inferior a un cierto umbral. En este contexto, estudiamos la influencia de la distribución inicial de opiniones. Las series temporales financieras están caracterizadas por una serie de hechos estilizados o regularidades estadísticas no gaussianas observadas en un amplio rango de mercados, activos y períodos temporales, como el agrupamiento de la volatilidad o las distribuciones de retornos con colas pesadas. Un número creciente de contribuciones basadas en agentes heterogéneos en interacción han venido a ofrecer una interpretación de estos hechos estilizados como el resultado emergente de la diversidad entre actores económicos y de las interacciones y conexiones entre ellos. En particular, nos centramos aquí en un modelo estocástico de transmisión de información en mercados financieros basado en una competición entre interacciones de copia a pares entre agentes de mercado (comportamiento gregario) y cambios de estado aleatorios (comportamiento idiosincrático). Por un lado, desarrollamos una generalización de este modelo de comportamiento gregario para tener en cuenta la llegada de información desde fuentes externas y estudiamos la influencia de esta información entrante en el mercado. Por otro lado, estudiamos una versión en red del modelo de comportamiento gregario y nos centramos en la influencia de la topología subyacente en el comportamiento asintótico del sistema. Los modelos de competición lingüística abordan la dinámica del uso de lenguas en sistemas sociales multilingües debida a interacciones sociales. El principal objetivo de estos modelos es el de diferenciar entre aquellos mecanismos de interacción que llevan a la coexistencia de diferentes lenguas y aquellos que llevan a la extinción de todas menos una. Aunque tradicionalmente se ha conceptualizado como una propiedad del hablante, recientemente se ha propuesto que el uso de una lengua puede ser más claramente descrito como una propiedad de la relación entre dos hablantes ---un estado del enlace--- que como una propiedad de los hablantes ---un estado del nodo---. Inspirados por esta perspectiva, desarrollamos primero un modelo de coevolución que acopla una dinámica de estados en los enlaces basada en una regla de mayoría con la evolución de la topología de la red debida al re-enlace aleatorio de enlaces en una minoría local. Finalmente, desarrollamos un modelo en el que las dinámicas acopladas de uso de la lengua, como propiedad de los enlaces entre hablantes, y preferencia lingüística, como propiedad de los hablantes mismos, son consideradas en una topología de red fija.
Filipová, Fuchsová Regina. "Dynamika obchodního modelu v telekomunikacích." Doctoral thesis, Vysoká škola ekonomická v Praze, 2002. http://www.nusl.cz/ntk/nusl-77117.
Full textEgbunike, Chukwudi Muofunanya Uchenna. "A system dynamics mineral exploitation model." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38295.
Full textWarren, Kimber Derek. "System dynamics modelling of strategic responses to exogenous change in the U.K. brewing industry." Thesis, London Business School (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244660.
Full textLiu, Fuping. "A system dynamics model for hydropower generation planning." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62782.pdf.
Full textJootar, Jay 1975. "A risk dynamics model of complex system development." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8480.
Full textIncludes bibliographical references (p. 201-204).
The development of complex systems is a challenging endeavor which has captured the attentions of scholars and practitioners alike. Throughout the decades, numerous methods have been proposed to help manage such development efforts more effectively and efficiently. Some of these methods, such as prototyping, concurrent engineering, iterative model for software development, and system-focused development for R&D, are process models which recommend better ways to structure the development process to handle the complexity of the system under development. This thesis seeks to understand the complex system development from a risk perspective. Continuing from the work done by other researchers, this work combines issues which are traditionally considered separately into one single model. More specifically, the model explicitly captures the dependencies in the system and the structure of an iterative development process and their interactions. The resulting mathematical problem demonstrates the risk characteristics of a development process. It shows that the optimality calls for a trade-off between the reduction of the probability of risk and the increase in the impact of risk. From its structure, the model also helps us understand how different aspects of system architecture affect the structure and the performance of the development process. In addition, the model also reveals the fundamental problems of process models and proposes a generic risk-based alternative. To explore the applicability of the model, the thesis also provides a case study in a software development process and a set of heuristics for solving the resulting combinatorial problem.
by Jay Jootar.
Ph.D.
Tan, HockWoo. "Agent-based model and system dynamics model for peace-keeping operations." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/44010.
Full textMilitary operations other than war (MOOTW) make up a large percentage of total military operations. Some common MOOTW operations are peacekeeping (PKO) and humanitarian assistance, and disaster relief (HADR). System dynamics (SD) uses a top-down approach that models high-level system behavior as compared to the use of agent-based modeling (ABM), which uses a bottom-up approach to generate system-level behavior through emergent behavior. In this work, SD and ABM were applied to model a food distribution scenario during the early phases of PK/HADR and the implementation process and results compared. The results were that large variations in food prices were observed as the time step and the integration technique were varied. Both SD and ABM, however, displayed similar emergent behavior in terms of crimes that occurred due to relative deprivation within the population. As an alternative to time step approximation, discrete event simulation (DES) may be used to implement the SD model through discretization of stocks or flows within the system and identifying events that change these quantities. The quantization of continuous variables in SD into discrete quantities may, however, introduce quantization errors. Emergent behavior seen in ABM can occur in SD through the interactions between equations. Due to the compactness of SD equations, it feels less intuitive to develop models using SD than it does to develop models using ABM.
Sontamino, Phongpat. "Decision support system of coal mine planning using system dynamics model." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-159919.
Full textPan, Wei Ph D. Massachusetts Institute of Technology. "Reality hedging : social system approach for understanding economic and financial dynamics." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97971.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 101-112).
This dissertation's main contribution is a new methodology, Reality Hedging, which is to use big-data driven approaches and tools from Computational Social Science for understanding, monitoring and designing economic and financial systems. The center idea in this approach is to treat economic and financial systems as systems of connected people. We are entering a new age where many aspects of our lives are digitized thanks to social media and smart phones. As we see many areas of research topics using these datasets to establish new behavioral and social theories about our society (e.g.: Reality Mining, Social Network Analysis, etc), it is natural to ask if and how we can use these advancements to build better economic and financial structures and institutions especially after the past financial crisis. After all, all economic systems are systems of people, rather than systems of atoms which always follow the same physics principles and mechanism. I collected and analyzed some large economic and financial social systems from individual levels to city levels. Many connections between financial dynamics with social dynamics were examined. I also focus on results and findings that can be used to build resilient and productive economic systems, and can be used to hedge out risks resulting from the social connectivity. In this thesis, I will discuss my research efforts in collecting valuable large-scale behavior data using smart phones. I will show that such datasets are helpful in inferring individual financial status. I will expand individual observations to new models for understanding the innovation economics in cities. I will continue to elaborate the idea of idea flow in behavior changes by focusing on the study of an online trading platform which allows traders to discuss and share trades with each other.
by Wei Pan.
Ph. D.
Schmidt, Gordon W. "Dynamics of endogenous economic growth : a case study of the "Romer model" /." Amsterdam [u.a.] : Elsevier, 2003. http://www.loc.gov/catdir/enhancements/fy0614/2003043910-d.html.
Full textBorsati, Mattia. "Empirical Essays on Transport and Regional Economics: Safety, Intermodality, and Commuting Dynamics." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/268170.
Full textMbiti, Titus Kivaa Peter, and tkivaap@yahoo com. "A System Dynamics Model of Construction Output in Kenya." RMIT University. Property Construction & Project Management, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20081211.160910.
Full textYung, Christian Hung Shing. "The privatization process--a system dynamics model for Brazil." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12086.
Full textGozluklu, Burak. "A new project management system dynamics model and simulator." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113517.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 56-57).
Simulators generated from project management system dynamics models are exercised for training the future project managers. In today's' high dynamic, vibrant and complex markets, the models should incorporate more business dynamics and also provide more tools to the players who can flexibly steer in the project games. Along with that objective, this study brings new dynamics and modeling approach to the original multi-phase project system dynamics model of Ford and Sterman, 1998. The new dynamics include the development of new features in the market growing the customer expectation, reflection of customer expectation to project economics, supersede of project concurrencies by rushing the tasks, allowing the defects delivered to customers to be compensated by lifetime repair cost and free positioning of the phase schedules while maintaining concurrencies. A new formulation for completion putthrough, option to include final downstream defect correction and elaborate project econometrics are also included. The model is built in modules that can be utilized to increase the number of phases and/or explain the model to the trainees more easily. The project model employs two options; a zero-defect policy and allowed defect policy where the latter is newly introduced by the repair cost. The system dynamics model is tested by proposed extreme project manager traits which are implemented as table function to use one or more modules to pursue an ultimate objective within a certain logic. A construction project principally mimicking the cases provided by Parvan et al. 2015 is simulated with the manager traits. The results initiate interesting tradeoffs such as the influence of project delivery time versus repair cost, accepting new tasks versus creating more defects or rescheduling the project or positioning the workforce before the ramping up of testing and defective task correction activities. The model necessitates a deeper understanding and analyses of long-term phenomenon such as the lifetime repair cost, the financial consequences of defects and lifetime earnings of products as well as the continuous feature development in the market and its economic value. It is found that the current model proposes an enhanced tool for the training of future project managers. Keywords: System dynamics, project management, simulation, defect policy, numerical modeling.
by Burak Gozluklu.
S.M. in Engineering and Management
Quan, Chuanwen. "A system dynamics model for the development of China's air transportation system." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-09182008-063445/.
Full textGrobbelaar, Sara Susanna. "R&D in the national system of innovation a system dynamics model /." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07212007-130132.
Full textSoddemann, Thomas. "Non-equilibrium molecular dynamics study of an amphiphilic model system." [S.l. : s.n.], 2001. http://ArchiMeD.uni-mainz.de/pub/2001/0015/diss.pdf.
Full textMcNamara, James. "The dynamics of a bushmeat hunting system under social, economic and environmental change." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/24407.
Full textCao, Shiya. "Analysis of Household Water Filtration in China: A System Dynamics Model." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1268.
Full textRupp, Matthew Y. "Passive dynamic steering system model for use in vehicle dynamics simulation." Connect to resource, 1994. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1157568618.
Full textKnoll, Karin L. (Karin Lynn). "A system dynamics model for the diffusion of a new technology." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/8957.
Full textIncludes bibliographical references (p. 193-194).
It is often difficult for companies producing new technologies to predict the acceptance pattern (or diffusion pattern) for the new technology in the marketplace. The expected diffusion pattern is important because it affects and is affected by the production, financial, sales and distribution strategies for the new technology, as well as decisions related to marketing and technical development. It is also useful if the projection of technology acceptance offers the firm insight into the factors that drive acceptance and the factors that contribute to rejection of the technology in the marketplace. This thesis develops a system dynamics model for the diffusion of a new medical technology. At the model's core is a general theory of medical technology emergence proposed by Dr. Jack Homer in his 1983 Ph.D. thesis entitled "A Dynamic Model for Analyzing the Emergence of New Medical Technologies." By parameterizing Dr. Homer's general system dynamics model to suit the new technology case, it is hoped that the model will give rise to a greater understanding of the factors relevant to diffusing the technology, as well as lead to more informed managerial decision making as progress is made with the technology.
by Karin L. Knoll.
S.M.
Ahn, Namsung 1955. "A system dynamics model of a large R&D program." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9541.
Full textIncludes bibliographical references (leaf 122).
Organizations with large R&D activities must deal with a hierarchy of decision regarding resource allocation. At the highest level of allocation, the decision is related to the total allocation to R&D as some portion of revenue. The middle level of allocation deals with the allocation among phases of the R&D process. The lowest level of decisions relates to the resource allocation to specific projects within a specific phase. This study focuses on developing an R&D model to deal with the middle level of allocation, i.e., the allocation among phases of research such as basic research, development, and demonstration. The methodology used to develop the R&D model is System Dynamics. Our modeling concept is innovative in representing each phase of R&D as consisting of two parts: projects under way, and an inventory of successful but not-yet-exploited projects. In a simple world, this concept can yield an exact analytical solution for allocation of resources among phases. But in a real world, the concept should be improved by adding more complex structures with nonlinear behaviors. Two particular nonlinear feedbacks are incorporated into the R&D model. The probability of success for any specific project is assumed partly dependent upon resources allocated to the project. Further, the time required to reach a conclusion regarding the success or failure of a project is also assumed dependent upon the level of resources allocated. In addition, the number of successful projects partly depends on the inventory of potential ideas in the previous stage that can be exploited. This model can provide R&D management with insights into the effect of changing allocations to phases whether those changes are internally or externally driven. With this model, it is possible to study the effectiveness of management decisions in a continuous fashion. Managers can predict payoffs for a host of different policies. In addition, as new research results accumulate, a re-assessment of program goals can be implemented easily and allocations adjusted to enhance continuously the likelihood of success, and to optimize payoffs. Finally, this model can give managers a quantitative rationale for program evaluation and permit the quantitative assessment of various externally imposed changes.
by Namsung Ahn.
Ph.D.
Smith, Edwin L. "A system dynamics computer model for long-term water quality planning." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/41562.
Full textThe objective of this study was to develop a comprehensive, basin-wide, water-quality-planning model using system dynamics methodology. Later, the model was to be interfaced with a more conventional system dynamics model: one simulating social, technological, economic, and political interactions. By doing so, it is envisioned that such management policies as zoning, abatement facilities, and best management practices may be simulated together.
Master of Science
Kopainsky, Birgit [Verfasser]. "A system dynamics analysis of socio-economic development in lagging Swiss regions / Birgit Kopainsky." Aachen : Shaker, 2005. http://d-nb.info/1181612284/34.
Full textBaker, Elizabeth White. "The Impact of Relational Model Bases on Organizational Decision Making: Cases in E-Commerce and Ecological Economics." VCU Scholars Compass, 2006. http://hdl.handle.net/10156/1399.
Full textPourmasoumi, Langarudi Saeed. "A System Dynamics Approach to the Political Economy of Resource-dependent Nations." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/432.
Full textSchmidt, Gordon 1946. "Dynamics of endogenous economic growth theory and related issues : a case study of the "Romer model"." Monash University, Dept. of Economics, 2001. http://arrow.monash.edu.au/hdl/1959.1/8832.
Full textPfaender, Jens Holger. "Competitive Assessment of Aerospace Systems using System Dynamics." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14014.
Full textAl-Gobaisi, Darwish M. K. F. "Economic scheduling in electric power systems : a mathematical model for the U.A.E." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/7288.
Full textBeringer, Tim. "Earth system dynamics in the Anthropocen." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2012. http://dx.doi.org/10.18452/16442.
Full textHuman activities, primarily the combustion of fossil fuels and the global modification of the land surface, are transforming the Earth System at unprecedented scale. Climate change and the overexploitation of natural resources may soon overwhelm the adaptive capacities of many ecosystems and societies, which could lead to substantial losses in human well-being and political destabilization. In this context, it is the goal of this thesis to contribute to a better understanding of the most important global drivers that will determine the future of the land biosphere during this century: climate change and human land use. Based on a Dynamic Global Vegetation Model (DGVM), the first part of this thesis examines two large climatic disturbances of the terrestrial carbon cycle that were observed during the last three decades. These analyses focus on the effects of changes in temperature, precipitation and radiation on plant productivity and soil decomposition. Results indicate that increased carbon storage in the land biosphere explains the most part of the atmospheric CO2 anomaly. The second part of this thesis addresses the worldwide increasing demand for bioenergy that may become the most important driver of future land use change due to the large area requirements of biomass cultivation. A combination of vegetation modeling and spatial data analyses is used to assess global bioenergy potentials that consider various sustainability requirements for food security, biodiversity protection and the reduction of greenhouse gas emissions and to evaluate the environmental impacts of large-scale energy crop cultivation. The results indicate that bioenergy may provide between 15 and 25% of the global energy demand in 2050. Exploiting these potentials, however, requires the conversion of large amounts of natural vegetation into agricultural land affecting a large number of ecosystems already fragmented and degraded by land use change.
Burtt, Kelly D. "Computational studies of photo-induces isomerization dynamics in a model molecular motor system." abstract and full text PDF (free order & download UNR users only), 2005. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3209954.
Full textToni. "Economic model of mine closure and its potential for economic transformation." Doctoral thesis, 2014. https://tubaf.qucosa.de/id/qucosa%3A22975.
Full text徐旻業. "A system dynamics model of the development in Western China influence on regional economic." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/22807216575993782274.
Full textHariharan, R. "System Dynamics Modeling Of Stylized Features Of Stock Markets." Thesis, 2006. http://hdl.handle.net/2005/463.
Full textHafner, Sarah. "Closing the green finance gap in the UK: policy recommendations and economic implications, using the system dynamics Green Investment Barrier Model (GIBM)." Thesis, 2020. https://arro.anglia.ac.uk/id/eprint/707186/1/Hafner_2020.docx.
Full textVortkamp, Irina. "Biological conservation: mathematical models from an ecological and socio-economic systems perspective." Doctoral thesis, 2021. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-202110015459.
Full textJaw, Woan-Ling, and 趙婉玲. "The Relationship between Urban Development and Water Resouces of Taipei Region : Applied Ecological-Economic System Model and Dynamic Simulation." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/63522196186413270628.
Full text國立中興大學
都市計劃研究所
83
Due to the rapid economic growth during the past decades, our cities grow and prosper speedily. However, the "demand- oriented" planning effort has deepen the unbalance of between demand and supply of water resources and the cost of hazard. From the literatures, water resources planners build water infrastructures forethoughtly also induce the development, which is not just the one-way effect of urban development on water constructions. Therefore, on the basis of macro, holistic, policy analysis, and "symbiosis between human and water" viewpoint, this research incorporates the method of ecological-economic system model and dynamic simulation to discuss the interaction between urban development, natural environment, and water resource system in Taipei Region. With the development of the system model comprising three sub-systems, this research observes the change and the inter-dependence between system components. The result of this simulation can not only portray the inter- relationship between natural environment, water resource system and urban area in Taipei Region, but also can discuss the influences of systems using "what if" analysis about the policies change: prices, watershed conservation, water saving, system loss lessening, and growth management. In addition, the results of scenario analysis of the future development alternatives indicate that the environmental conservation based economic development can balance the objectives of environmental conservation and efficient water utilization , that is, to use the resources and develop the city sustainably.
Spivey, Benjamin James. "Dynamic modeling, model-based control, and optimization of solid oxide fuel cells." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-08-4325.
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