Tesis sobre el tema "Airline industries"
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Bhattacharjee, Prasun. "Empirical Essays in Industrial Organization: Application in Airline and Automobile Industries". Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77102.
Texto completoPh. D.
Costa, Bárbara Reis da. "Cash conversion cycle across industries". Master's thesis, NSBE - UNL, 2014. http://hdl.handle.net/10362/11731.
Texto completoThe purpose of this research is to assess whether Cash Conversion Cycle differs between industries via their components, namely Days Inventory Outstanding, Days Sales Outstanding and Days Payables Outstanding. Based on a sample of multinational companies from two different industries, Fast Moving Consumer Goods and Airline industry for the period 2009-2012, the results suggest that Cash Conversion Cycle differs between industries. Also it differs between large and smaller companies due to different accounting choices. It contributes to a better understanding about how size of the firm, inventory system, liquidity and payables impact on CCC and consequently on companies’ profitability.
Von, Nordenflycht Andrew Gustaf 1969. "Governing the human capitalists : ownership and authority in the advertising and airline industries". Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17723.
Texto completoIncludes bibliographical references.
Theorists suggest the rising value of human capital will mean greater participation by employees in the ownership and governance of firms. This thesis explores aspects of these claims by analyzing the competitive effects of the allocation of ownership and authority in ad agencies and airlines. Essays 1 and 2 analyze the organizational history of the advertising industry to reconcile the stylized, theoretical views of professional service firms (PSFs) as unstable, small, private partnerships with the empirical reality of large public corporations in several professional service industries. Essay 1 uses a panel of advertising agencies and creativity awards from 1960-1980 to assess whether public ownership reduced PSF competitiveness, particularly whether it diluted employee incentives. Finding no difference in the survival, growth, and award rates of public and private ad agencies, this paper challenges the notion that allocating ownership exclusively to employees provides advantage in the PSF environment. Essay 2 draws on interviews and historical research to develop hypotheses about the structure and evolution of the industry. It proposes that agency size affects the ability to service large projects, hence the size distribution of agencies stems from heterogeneity in the units of demand. It also proposes that the industry's holding companies add value through financial intermediation. Together these essays suggest that the large public corporation is a feasible and perhaps advantaged governance form even in environments based predominantly on human capital.
(cont.) They challenge several assumptions underlying the stylized view of PSFs, and offer the speculation that the rarity of public PSFs stems from institutional barriers, not economic disadvantages. Essay 3 stems from separate research on airline labor relations and analyzes the turnaround of Continental Airlines. A case study reveals Continental's improved employee relations stem from a fundamental change in its authority system, from a traditional hierarchy to a high-involvement system. The case also discusses likely facilitators of this transformation of Continental's authority system. Taken together the essays offer a broad conjecture for future research: that allocation of authority inside the firm may be a more important factor in employee incentives than allocation of ownership to employees.
by Andrew Gustaf von Nordenflycht.
Ph.D.
McCarthy, Jeffrey A. (Jeffrey Albert). "Applications and limitations of yield management pricing systems beyond the airline and hospitality industries". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12087.
Texto completoRothkopf, Maximilian. "Innovation in commoditized service industries : an empirical case study analysis in the passenger airline industry /". Berlin ; Münster : Lit, 2009. http://d-nb.info/99287145X/04.
Texto completoBarnes, Jonavan. "Measuring service quality in the low-cost airline industry". Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/24938.
Texto completoCohanier, Bruno. "Performance management in the United States and France : four case studies in the retail and airline industries". Thesis, Aston University, 2012. http://publications.aston.ac.uk/23645/.
Texto completoLiasidou, Sotiroula. "An exploration of policy, product developments, innovation and consumption patterns : the case of tourism and airline industries in Cyprus". Thesis, University of Exeter, 2009. http://hdl.handle.net/10036/69019.
Texto completoDelgado, Taiba Pablo Osvaldo. "Rediseño del modelo de gestión de proveedores de Lan Airlines". Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/114063.
Texto completoEl presente trabajo se realizó en la empresa LAN Airlines S.A., bajo el alero de la Gerencia de Materiales. El objetivo es proponer un rediseño de las actividades principales de la Subgerencia de Negociaciones Técnicas, encargados de la negociación y gestión de los pagos para los proveedores de la Gerencia, con sus proveedores. El quiebre detectado al comienzo de este proyecto era la nula gestión de la relación con el proveedor que se hacía, como consecuencia de algunos procesos desalineados dentro de la subgerencia. El desarrollo del trabajo consta de tres fases: levantamiento y diagnóstico, implementación piloto y re-diseño, apoyadas por la dirección de la Subgerencia de Negociaciones Técnicas en toda su extensión. Para la última fase, se dispuso un cambio en la estructura de la subgerencia, que estuvo complementado por la entrada de nuevos integrantes a las áreas de Negociaciones Técnicas y Statement. Paralelo al levantamiento, se hizo un estudio teórico sobre el manejo de un proceso productivo y la gestión de proveedores, de donde se determinan los tres ejes de trabajo principales del proyecto, que son la comunicación, el manejo de la deuda y la performance del proveedor. El levantamiento se compone de dos partes: la introducción a todos los actores y sistemas que interactuaban en el proceso y la descripción de las actividades más críticas. La fase piloto, llamada Piloto SRM, entregó los primeros lineamientos hacia la etapa de rediseño y permitió hacer mediciones que confirmaban la necesidad imperante de su realización. En el rediseño se explicitan todas las modificaciones hechas a nivel de organización como de actividades. Los resultados obtenidos entre los meses de enero y marzo de 2012, concluyen con una mejora consistente en la gestión expresada por la liberación de proveedores que retenían el material por problemas con la deuda, de 23 a 5 de ellos. Hubo progresos sólidos con la deuda, bajando la deuda en sistema en un 30% y la cantidad de facturas atrasadas en el periodo de evaluación como consecuencia de esto. Se concluye mostrando la cobertura comunicacional y las oportunidades que se crean con esta nueva condición de trabajo.
Januszewski, Silke I. (Silke Irene) 1974. "Essays on the industrial organization of the airline industry". Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17631.
Texto completoIncludes bibliographical references.
This thesis analyzes several aspects of the Industrial Organization of the airline industry in three separate chapters. Chapter 1 investigates the effect of air traffic delays on airline prices. The degree to which prices respond to changes in service quality should depend on consumers' willingness-to-pay for quality, as well as the availability of substitute products. I study the effect of an exogenous variation in on-time arrivals, as one dimension of service quality in the airline industry, on prices for airline travel. The effect is identified from a legislative change in takeoff and landing restrictions at La Guardia Airport in New York City in the year 2000. I find that prices drop in reaction to longer flight delays. The price response is larger when a close substitute flight is available. Increased flight delays at La Guardia have a positive effect on prices at other New York City Metropolitan Area airports, which offer substitute products. In quantile regressions on thedistribution of prices, I show that prices at the upper end of the distribution react more strongly to flight delays. In Chapter 2, I study how airline passenger complaints are related to actual and expected service quality of air carriers. In contrast to the existing studies on customer complaints, I do not derive consumers' expectations from survey data. Instead, I use the best prediction at the time of purchase given the information available at that time as the consumer's rational expectation of service quality. I find that passengers file more complaints when an airline's actual service quality is lower and when expected quality is lower. These effects are quite robust across different econometric specifications. Considering the magnitudes of the effects, I find that the effects of actual quality and of expectations on complaints are of similar magnitude. Chapter 3 tries to understand the recent market entry and expansion by a group of small carriers, often labeled low-cost carriers. As a first step in analyzing the competitive strategy of these carriers, we investigate the effect of a carrier's and its competitors' existing presence at the endpoints of a routes on the likelihood of entry.
by Silke I. Januszewski.
Ph.D.
Kundu, Chiranjit. "Essays in Empirical Industrial Organization of US Domestic Airline Industry". The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1408992598.
Texto completoTayeb, Mamdouh Taher. "The determinants and impact of outsourcing on airlines' performance". Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/13700/.
Texto completoRamadan, Ayad G. A. "Exploring service recovery and justice theory in the Libyan airline industry". Thesis, University of Gloucestershire, 2012. http://eprints.glos.ac.uk/664/.
Texto completoMo, Yuet-ha Rita y 巫月霞. "An international comparison of the accounting treatment of aircraft leasing in airline accounts". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B3126444X.
Texto completoMo, Yuet-ha Rita. "An international comparison of the accounting treatment of aircraft leasing in airline accounts /". [Hong Kong] : University of Hong Kong, 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12373904.
Texto completoWu, Chi-Yin (Jenny). "Essays in empirical industrial organization". Diss., Kansas State University, 2012. http://hdl.handle.net/2097/13678.
Texto completoDepartment of Economics
Philip G. Gayle
This dissertation is composed of two essays in the field of Industrial Organization. Specifically, the empirical studies are conducted by focusing on the market structure and competition issues in the airline industry. The first essay investigates entry deterrence through incumbents’ pricing strategies in the airline industry. Recent research finds evidence that incumbent airlines tend to cut fares in response to the “threat” of entry by Southwest Airlines. Instead of focusing on the entry threat by a single carrier, this essay re-examines this issue by looking at incumbent airlines’ price response when entry is threatened by a wider variety of potential entrant airlines. Results show that incumbents’ response vary by the identity of the firm making the threat. As expected, incumbents cut fares in response to the threat of entry by some potential entrants; however, a new result is also found that incumbents may respond by raising their fare depending on who is making the threat. The second essay looks into an antitrust-relevant issue in the airline industry. Proper antitrust analysis often focuses on whether the concerned differentiated products are truly competing with each other. This essay uses a structural econometric model to investigate whether nonstop and connecting air travel products effectively compete with each other. Estimate results suggest that connecting products may be an attractive alternative to nonstop products for leisure travelers but less so for business travelers. If connecting products are counterfactually eliminated, the empirical model predicts small price changes for nonstop products. This suggests that the two product types only weakly compete with each other and can be treated as being in separate product markets for antitrust purposes.
Granquist, Christopher A. "Mutual Forbearance and Price Dispersion: Evidence from the Airline Industry". Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1604574593004617.
Texto completoBrown, David R. "Three essays in industrial organization : alliances, mergers, and pricing in commercial aviation". Diss., Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3751.
Texto completoBruneau, Jonathan M. "Antitrust law enforcement within the U.S. airline industry : fact or fiction?" Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22505.
Texto completoAfter a brief Introduction, Chapter I will examine whether concentration within the U.S. airline industry is a natural phenomenon or an ordinary monopoly/oligopoly resulting from the behaviour of competitors. In concluding that a natural monopoly/oligopoly does not exist, Chapter II will analyse the policy being antitrust enforcement in the industry.
Chapter III will then use the implementation of S 408 of the Federal Aviation Act (FAA) by the Department of Transportation (DOT) as an example of such a policy. Finally, the remaining chapters are dedicated to an analysis of the CRS industry. By using this industry as an example, the writer will suggest that, by removing barriers to entry through aggressive use of S 411 of the FAA, the future may see new entrants enter the market. Emphasis will be placed on the attitude of the DOT in this regard.
Chen, Lijian. "Stochastic programming in revenue management". Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1150314352.
Texto completoMenon, Kalyani. "Prototype of consumption emotions and implications for service evaluation : the case of anger and anxiety in extended service transactions". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0018/NQ55359.pdf.
Texto completoHuang, Chu Cheng 1964. "Airline labour law : a study of certain labour law rules in international air transport". Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34739.
Texto completoA critical survey of labor regulations operating in the international air transport industry is provided through commentary on the principles formulated by judicial decisions and the theories which underlie their reasoning, helping to clarify both substantive and procedural labor laws affecting international air transport.
A critical analysis of different categories of statutory labor law governing international air transport is also provided to assess the validity of commonly-erected conflict of labor law rules, thereby revealing the inadequacy of the single rule principle in view of the unique and perplexing regulatory interests which are inherent in aviation activity. The divergence between domestic labor statutes and Treaties of Friendship, Commerce and Navigation or bilateral air transport agreements also adds a more subtle aspect to the problems explored.
Yáñez, del Valle José Maximiliano. "Manual annotation & text mining in a marketing service logic approach -ARC Framework-LATAM airlines case study research". Tesis, Universidad de Chile, 2014. http://www.repositorio.uchile.cl/handle/2250/117535.
Texto completoEl presente documento se basa en la aplicación de una nueva metodología, justificada dentro del marco teórico de Service Analytics y ARC. Esta metodología, consta de tres etapas: En primer lugar, un proceso de Anotación Manual, para analizar feedback escrito no estructurado de clientes. En segundo lugar un mapeo del proceso de servicios visto de la perspectiva de los clientes. Y finalmente, la construcción de un artefacto de Text Mining basado en los dos procesos anteriormente concretados, buscando automatizar el análisis de grandes masas de texto, proveniente de altas cantidades de comentarios de retroalimentación recibida de los clientes. En este documento, se trabaja esta metodología, aplicándola por primera vez en el idioma español, y en un dominio de servicios diferente a su predecesora original. Los objetivos de este trabajo, por tanto se pueden dividir en Impacto Académico e Impacto Organizacional, donde los primeros corresponden a realizar los ajustes pertinentes a las herramientas y definiciones actualmente existentes. Demostrando su capacidad de adaptación libre de dominio e idioma, entregando robustez y validación a la metodología. Los segundos corresponden a las aplicaciones prácticas de la metodología en base a la información provista por la organización involucrada. Generando un método eficiente y adaptado a sus operaciones de análisis de feedback de clientes, un boceto del servicio visto desde la perspectiva de sus clientes y finalmente un prototipo de artefacto de minería de texto. Todo esto, con la capacidad de construir sobre los mismos, herramientas y outputs de mayor complejidad y elaboración a futuro, lo cual sumado a los pocos casos de estudios existentes hasta el momento y la novedad de la metodología (iniciada el 2013 y con publicaciones recientes en 2014), les puede entregar una ventaja competitiva en la gestión del feedback de sus clientes respecto a otras organizaciones de la industria y mundo empresarial en general. La metodología utilizada para la investigación corresponde al Caso de Estudio, que en esta oportunidad contó con información provista por el Grupo LATAM Airlines, y su área de Contact Center; Junto al procedimiento de 5 Fases Iterativas de Takeda (Takeda, Veerkamp, & Yoshikawa, 1990). Los resultados logrados, considerando las limitaciones del estudio, se dividen por tanto en las tres fases del trabajo. En primer lugar, la conclusión clave de que es posible adaptar la metodología a otro idioma y dominio de servicios. Junto a esto, la entrega de un instructivo de anotación manual en español, una planilla propuesta para realizar en forma eficiente el procedimiento, y un set de observaciones relevantes para la metodología, como por ejemplo, la forma de tratar casos de Elementos Genéricos. En segundo lugar, el output del mapeo de servicios de la organización, con sus 4 grandes procesos de servicios y todos sus elementos pertenecientes al marco ARC. Por último, el primer prototipo del artefacto de Text Mining, lo cual puede ser el principio de una construcción avanzada por parte de la empresa.
Brewster, Christopher John. "Industrial relations in the airlines: an analysis of managerial policies and controls in four companies". Thesis, London School of Economics and Political Science (University of London), 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281641.
Texto completoMaldonado, Rafael Resende 1981. "Produção, purificação e caracterização da lipase de Geotrichum candidum obtida a partir de meios industriais". [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255031.
Texto completoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos
Made available in DSpace on 2018-08-06T19:12:26Z (GMT). No. of bitstreams: 1 Maldonado_RafaelResende_M.pdf: 1875683 bytes, checksum: 3c696cbfa231b172b2aec2339aa46426 (MD5) Previous issue date: 2006
Mestrado
Mestre em Engenharia de Alimentos
Dooley, Cathleen Marie. "Battle in the sky: A cultural and legal history of sex discrimination in the United States airline industry, 1930-1980". Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/280698.
Texto completoNunes, Paulo. "Holistic risk management in commercial air transport : a methodology to apply ISO 31000 to the airline industry". Thesis, City University London, 2015. http://openaccess.city.ac.uk/13571/.
Texto completoJuacida, Ramírez Lorenzo Eugenio. "Rediseño y optimización de los procesos del área de recepción de Latam Airlines para aumentar productividad y cumplimiento de estándares". Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/143365.
Texto completoEsta Memoria se realiza en la Base de Mantenimiento de LATAM Airlines, la cual es una aerolínea latinoamericana resultado de la fusión de LAN Airlines (aerolínea chilena) y TAM Airlines (aerolínea brasileña). Por otro lado, la Base de Mantenimiento es una de las dependencias de LATAM en Chile, encargada principalmente de realizar reparaciones y mantenimiento a los aviones de la flota de la empresa. En específico se trabaja en el Área de Recepción, la cual está encargada de cómo su nombre lo dice, recibir todas las unidades necesarias para la mantención de los aviones. Las unidades que se reciben llevan el nombre de líneas, las cuales se encuentran dentro de cajas llamadas bultos. Esta área se divide en 4 sectores: Pre-recepción: Encargado de recibir los bultos e ingresarlos por sistema. Tiene 4 trabajadores y reciben 166,58 bultos en promedio al día. Inspección de Calidad: Encargado de abrir los bultos y separarlos en líneas. Tiene 4 trabajadores y reciben 190,83 líneas en promedio al día. Recepción Final: Encargado de recibir las líneas y darles ubicación en Bodega. Tiene 9 trabajadores y reciben 214,5 líneas en promedio al día. Cuarentena: Encargado de encontrar solución a los bultos o líneas que presenten algún tipo de anomalía. Tiene 1 trabajador y recibe 24,2 líneas en promedio al día. De estos 4 sectores no se trabaja en Inspección de Calidad, ya que pertenece a una jefatura externa, de esta forma se concentra el trabajo en los demás sectores. El problema identificado es la baja productividad y nivel de servicio que en algunos casos producen retrasos en la reparación de las aeronaves. Por lo tanto el objetivo de esta Memoria consiste en aumentar la productividad y nivel de servicio de esta área productiva, lo que disminuirá los retrasos de reparación de los aviones. Para aumentar el nivel de servicio se modifican los turnos de trabajo de los funcionarios para asegurar dotación de personal acorde a la demanda y cumplir con los tiempos estandarizados de recibimiento de unidades. Para aumentar la productividad del área se realiza un rediseño de las tareas ineficientes de cada sector, aumentando la productividad estimada en un 12,36%, lo que a su vez disminuye la utilización de horas extras Finalmente se crean indicadores de rendimiento (KPI) para medir la productividad y los niveles de servicio en forma automática mediante la creación de Macros. Los indicadores que se miden para cada uno de los sectores mencionados son los siguientes: Oferta vs Demanda: (Líneas trabajadas)/(Demanda de líneas) Productividad: (Líneas trabajadas)/Capacidad Nivel de servicio: (Líneas Dentro Estandar/Fuera Estandar/Pendientes)/(Líneas Totales) El ahorro estimado anual del proyecto es de $1.362.245,77 CLP, por lo que su VAN a 3 años es de $3.271.884,49 CLP con una tasa del 12%.
Jemaat, Zulkifly Bin. "Treatment of complex industrial wastewaters containing ammonium and phenolic compounds using granular sludge in continuous airlift reactors". Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/117276.
Texto completoThe simultaneous nitritation and phenolic compounds removal using aerobic granular reactors in continuous mode were studied in this Ph.D. thesis. The study is divided into two main subjects; the first one is devoted to the modeling of nitritation while the other part is dedicated to the experimental work of simultaneous nitritation and phenolic compounds removal using granular reactors. In the modeling study, a mathematical biofilm model was developed to describe nitritation in aerobic granular reactors operating in continuous mode. The model incorporated a [DO]/[TAN] ratio control strategy to maintain the proportion between the concentrations of dissolved oxygen (DO) and total ammonia nitrogen (TAN) in the reactor effluent to a desired value. The model was validated with a large set of experimental results previously reported in the literature, as well as, data gathered from laboratory scale and pilot plant granular reactors treating reject water. The model was used to study the effect of: a) DO and TAN setpoints, b) operating temperature, c) biofilm characteristics (granules size, density) and d) ammonium concentrations in the influent on the achievement of full nitritation. The results indicated that full nitritation was stably maintained and enhanced by applying the [DO]/[TAN] ratio control strategy in the operation of aerobic granular sludge reactor. Moreover, the model predicted that aerobic granules size larger than 1.5 mm and high ammonium concentrations in the influent enhanced the achievement of stable full nitritation, while poor influence of the biofilm density was found with the simulation study. Furthermore, at low temperature, full nitritation with granular reactors was demonstrated to be possible. In the experimental work, an airlift reactor was employed. In the reactor start-up, granular sludge from a reactor performing biological nutrient removal was used as inoculum. A synthetic wastewater containing high-strength ammonium concentrations (950 ± 25 mg N L- 1) was fed into the airlift reactor. The reactor was operated until partial nitritation was obtained. Once partial nitritation was achieved, the airlift reactor was bioaugmented with pnitrophenol (PNP)-degrading activated sludge to enhance the growth of phenolic-degraders over the nitrifying granules. Immediately, o-cresol (up to 100 mg L-1) or PNP (up to 15 mg L- 1) were progressively added to the high-strength ammonium influent and fed into the reactor with the objective of studying the simultaneous partial nitritation and o-cresol removal and the simultaneous nitritation and (PNP) removal. First, in the study of simultaneous partial nitritation and o-cresol removal, a stably partial nitritation process was maintained for more than 100 days of operation. Moreover, full biodegradation of o-cresol was achieved during the whole experimental period. Also, o-cresol shock load events were applied and the partial nitritation process was kept stable and unaffected during these events. The achievable nitrogen loading rate (NLRv) and o-cresol loading rate (CLRv) were ca. 1.1 g N L-1d-1 and 0.11 g o-cresol L-1d-1, respectively. Analysis of fluorescent in-situ hybridization (FISH) indicated that Acinetobacter genus, betaproteobacterial ammonia-oxidizing bacteria and Nitrobacter sp. were present into the granules. Later, the operation of the reactor was continued, and an experiment devoted to the performance of the reactor under three sequentially alternating pollutant (SAP) scenarios was executed. In each one of the SAP scenarios, 15 mg L-1 of the secondary phenolic compounds (i.e. p-nitrophenol (PNP), phenol and 2-chlorophenol (2CP)) were added in the regular influent for a short period of time (between 20 to 25 days). The results illustrated that partial nitritation and o-cresol biodegradation were maintained without exhibiting any sign of inhibition by the presence of PNP or phenol. However, when 2CP was present in the influent, 90 % of the partial nitritation and 25 % of the o-cresol degradation was inhibited within three days. This finding suggests that the ammonia oxidizing bacteria (AOB) is more sensitive to 2CP inhibition than heterotrophs (o-cresol-degraders). Second, in the study of simultaneous nitritation and PNP removal, nitritation was maintained during most of the operation period producing an effluent suitable for heterotrophic denitrification. However, in the first 175 days, PNP biodegradation was unstable and several accumulation episodes occurred. The oxygen limiting condition was found to be the main explanation of these events. The increase of dissolved oxygen concentration (DO) in the reactor from 2 to 4 mg O2 L-1 permitted to achieve complete and stable PNP removal till the end of the experimental period. The achieved NLRv and PNP loading rate (PNP-LRv) were ca. 1.0 g N L-1d-1 and 16 mg PNP L-1d-1, respectively. Besides, the performance of the reactor was further assessed by performing two starvation studies, i) PNP starvation and ii) total starvation period (reactor shutdown). Results show that full recovery of PNP degradation was achieved within 2 days after the PNP starvation period ended, while full recovery of simultaneous nitritation and PNP removal was accomplished in just 11 days after the restart of the reactor. In conclusion, the use of continuous aerobic granular reactors for the simultaneous nitritation and phenolic compounds removal is feasible. This could be regarded as a best available technique for the treatment of complex industrial wastewaters containing high-strength ammonium concentrations and phenolic compounds. Aerobic granules are proven to be resistant and resilient to the shock loads, to the alternating presence of recalcitrant compounds and to starvation periods; conditions frequently found in industrial wastewater treatment plants due to changes on the industrial production schedules. In the near future, we propose the simultaneous nitritation and phenolic compounds removal should be combined with either heterotrophic denitrification or Anammox for sustainable nitrogen removal.
Dell, Geoff University of Ballarat. "The causes and prevention of airline baggage handler back injuries : safe designs required where behaviour and administrative solutions have had limited effect". University of Ballarat, 2007. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12823.
Texto completoDoctor of Philosophy
Dell, Geoff. "The causes and prevention of airline baggage handler back injuries : Safe designs required where behaviour and administrative solutions have had limited effect". Thesis, University of Ballarat, 2007. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/44427.
Texto completoDoctor of Philosophy
Dell, Geoff. "The causes and prevention of airline baggage handler back injuries : safe designs required where behaviour and administrative solutions have had limited effect". University of Ballarat, 2007. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/14622.
Texto completoDoctor of Philosophy
Wassmer, Ulrich Franz. "Alliance portfolios and value creation: Theory and empirical evidence from the global airline industry". Doctoral thesis, Universitat Ramon Llull, 2007. http://hdl.handle.net/10803/9188.
Texto completo¿Importan los portafolios de alianzas? ¿Cómo afectan los recursos a los que acceden las empresas por varias alianzas estratégicas simultáneas con socios diferentes a la creación de valor y a la apropiación de valor? Los portafolios de alianzas ¿explican la heterogeneidad entre empresas con respecto al valor que captan cuando entran en nuevas alianzas estratégicas? Esta tesis doctoral se basa en la teoría de los recursos y en la bibliografía sobre el comportamiento estratégico y las dinámicas competitivas, y presenta un modelo teórico que se refiere a la creación de valor y apropiación en empresas que acceden a recursos a través de varias alianzas simultáneas con socios diferentes. El modelo muestra que la creación de valor mediante un portafolio de alianzas es una función del valor creado por combinaciones sinergéticas de recursos que implican recursos a los cuales acceden diferentes socios, así como del valor destruido a causa de la incompatibilidad entre la combinación de recursos de una impresa focal y los recursos de sus socios. Sobre la base de este modelo teórico, se han desarrollado varias hipótesis en un ambiente marginal en el que una empresa conectada multilateralmente añade una nueva alianza estratégica a su cartera de alianzas. Para comprobar estas hipótesis se ha empleado la metodología del event study, y se han utilizado datos de la industria global de las aerolíneas sobre acuerdos de code share suscritos entre 1994 y 1998. Los resultados muestran que el mercado recompensa a las empresas que forman alianzas con socios que tienen recursos complementarios y pueden aportar recursos que no sólo pueden combinarse con los recursos propios de la empresa sino también con los relacionales y que también son compatibles con los de los socios que forman la alianza. Por otra parte, los resultados también muestran que el mercado penaliza a las empresas que forman alianzas que aportan recursos que son incompatibles con los portafolios de alianzas, en el sentido de que crean un conflicto competitivo con algunos de los socios existentes. Los resultados de la parte empírica de este análisis abonan la tesis de que los portafolios de alianzas afectan a los resultados de empresas que entran en alianzas estratégicas. Este estudio concluye que los recursos a los que se accede a través de las alianzas entre empresas han de evaluarse no sólo por sus características propias y diádicas sino también en el contexto de los portafolios de alianzas.
Do alliance portfolios matter? How do resources accessed from multiple simultaneous strategic alliances with different partners affect value creation and value appropriation? Do alliance portfolios explain heterogeneity across firms with respect to the value that they derive from entering into new strategic alliances? This dissertation builds on insights from the resource-based view of the firm and the strategic behaviour and competitive dynamics literature and advances a theoretical model that addresses value creation and appropriation in firms that access resources through multiple simultaneous inter-firm alliances with different partners. The model illustrates that value creation on the alliance portfolio level is a function of the value created from synergistic resource combinations involving resources accessed from different partners as well the value destroyed by incompatibilities between a focal firm's resource combinations and those deployed by its partners. Based on this theoretical model, empirically testable hypotheses are developed in a marginal setting, in which a multilaterally connected firm adds one new strategic alliance to its alliance portfolio. The hypotheses are tested using an event study method approach and data from the global airline industry on code share agreements formed between 1994 and 1998. The results show that the market on one side rewards firms entering into strategic alliances with partners that possess complementary resources and that contribute resources that cannot only be combined with firms' own but also existing relational resources and that are compatible with the firms' alliance portfolios. On the other side, results show that the market penalizes firms entering into alliances that contribute resources that are alliance portfolio incompatible in the sense that they create a competitive conflict with some of the existing alliance partners. The findings of the empirical part of this dissertation support the view that alliance portfolios affect the performance of firms entering into strategic alliances. This study concludes that resources accessed through inter-firm alliances should not only be evaluated on their standalone and dyadic attributes but also in the context of alliance portfolios.
Litvay, Robyn Olson. "Development and Validation of a New Air Carrier Block Time Prediction Model and Methodology". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338750175.
Texto completoHaddadin, Jamal. "Études microbiologiques et cinétiques de la lixiviation bactérienne en réacteurs : effet de différents paramètres physico-chimiques, développement d'un procédé en réacteurs air-lift et lit-fluidisé et application à l'extraction de l'antimoine". Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL063N.
Texto completoMéndez, Natalia Andrea Cabrera. "Common-sized financial statements in the retail and airline industries in Colombia". Master's thesis, 2017. http://hdl.handle.net/10362/23214.
Texto completoWu, Hsiang-Yi y 吳祥逸. "The Impact of Taiwanese and Japanese Serious Natural Disasters on Stock Returns on Taiwanese Financial, Airline and Tourism Industries". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/w2gcws.
Texto completoAmegashie, Derrick y 戴立岢. "Communicating Corporate Social Responsibility on the Internet: A Case Study of Top Airline Industries in Asia, Europe and the Middle East". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/djbb86.
Texto completo輔仁大學
國際創業與經營管理學程碩士在職專班
103
There is a remarkable history allied with the evolution of the concept and classification of corporate social responsibility (CSR). This resurgence has created attention among practitioners and companies to understand the ability of CSR to address environmental and social harms. In this paper, significant advances will be made to address and track the development of CSR and sustainability reporting in the airline industry. As a corrective, we will research to promote and create awareness of airline companies’ engagement in CSR. Emphasis will be specifically placed on the airlines reporting CSR practices rather than directly on the CSR activities. Two comparative research designs will be adopted to analyze this development. A qualitative content analysis using Global Reporting Initiative (GRI 4) and six airlines CSR webpages under presentation, content and interactivity theory will be used. With efforts from airlines to make their CSR reports comparable, comparability across different carriers’ reports and presented measures has not yet been achieved and is not expected to do so in the near future. It will demonstrate that, while a large number of organizations report commitment to CSR and sustainability goals and objectives, only a small number of them provide details on precise initiatives undertaken to help these goals and even less of them report actual performances achieved. The study also identifies some difficulties which makes it challenging in comparing airline industries that do not report it, issues including different methodologies and measures applied, lack of clarity with regards to the scope of reporting. The study will also assess the comprehensiveness and quality of CSR reports published by the airline industry. The findings indicate that CSR and sustainability reporting is not commonly practiced among airline industries and when it is even done, there is some amount of variability in the disclosure practices.
Zhang, Yahua. "Airline mergers and market power: evidence from China's airline markets". 2007. http://arrow.unisa.edu.au:8081/1959.8/43069.
Texto completoPinho, Bernardo Almeida. "The global airline industry: an assessment of the impact of low-cost carriers on the technical efficiency of full-service airlines". Master's thesis, 2017. http://hdl.handle.net/10071/15785.
Texto completoA criação da primeira companhia aérea de baixo-custo, a "Southwest Airlines", impulsionou o desenvolvimento mundial de tantas outras no sector da aviação. A simplicidade, os preços baixos e o foco no principal objetivo da atividade (voar) têm sido a chave do seu sucesso e, simultaneamente, uma ameaça às companhias aéreas tradicionais. Inevitavelmente, os operadores de serviço-completo têm vindo a realizar mudanças no seu modelo de negócio para conseguirem manter-se competitivas. Recentemente, alguns estudos têm-se focado na comparação entre os dois modelos de negócio e na análise das estratégias das transportadoras tradicionais ao aumento concorrencial. No entanto, parece não existir qualquer investigação acerca do impacto dos operadores de baixo-custo na eficiência técnica dos tradicionais. Assim, este estudo foca-se na relação entre a quota de mercado regional das transportadoras de baixo-custo e a eficiência técnica das companhias aéreas tradicionais sediadas nessa região. Para prosseguir esta investigação, foi implementada uma Análise por Envoltória de Dados de duas etapas. Inicialmente, foram estimadas as pontuações de eficiência técnica com métodos de "bootstrap" para 137 transportadoras de passageiros e, posteriormente, as pontuações foram usadas como variável dependente numa regressão "bootstrapped" truncada para identificar as fontes de eficiência. Os resultados sugerem que uma maior concentração de operadores de baixo-custo numa dada região está associada a uma menor utilização de recursos, por parte dos operadores tradicionais dessa região, para o mesmo nível de produção. Esta relação poderá ser explicada por práticas de gestão mais adequadas que aproximam o modelo tradicional do modelo de baixo-custo.
Gedge, Christopher David. "Essays in Industrial Organization". Diss., 2016. http://hdl.handle.net/10161/12148.
Texto completoThis dissertation extends the empirical industrial organization literature with two essays on strategic decisions of firms in imperfectly competitive markets and one essay on how inertia in consumer choice can result in significant welfare losses. Using data from the airline industry I study a well-known puzzle in the literature whereby incumbent firms decrease fares when Southwest Airlines emerges as a potential entrant, but is not (yet) competing directly. In the first essay I describe this so-called Southwest Effect and use reduced-form analysis to offer possible explanations for why firms may choose to forgo profits today rather than wait until Southwest operates the route. The analysis suggests that incumbent firms are attempting to signal to Southwest that entry is unprofitable so as to deter its entry. The second essay develops this theme by extending a classic model from the IO literature, limit pricing, to a dynamic setting. Calibrations indicate the price cuts observed in the data can be captured by a dynamic limit pricing model. The third essay looks at another concentrated industry, mobile telecoms, and studies how inertia in choice (be it inattention or switching costs) can lead to consumers being on poorly matched cellphone plans and how a simple policy proposal can have a considerable effect on welfare.
Dissertation
Knapp, William M. "Event analysis of horizontal mergers and aquisitions in U.S. airlines and eight British industries". 1988. http://catalog.hathitrust.org/api/volumes/oclc/19403049.html.
Texto completoMazur, Lawrence Joseph. "Essays in Industrial Organization". Diss., 2015. http://hdl.handle.net/10161/9973.
Texto completoThis dissertation extends the economics literature in industrial organization with three empirical essays on the strategic decisions of firms in imperfectly competitive markets. Using data from the U.S. airline industry, I combine reduced-form analysis with recent econometric advances in the estimation of dynamic games to examine the market-level and industry-level behavior of oligopolistic firms. The first essay presents a framework for sensitivity analysis in merger simulation. The second essay continues the market-level analysis of merger effects by examining how airline mergers influence price dispersion. The third essay shifts focus to industry-level investment behavior, examining the role played by bankruptcy policy in disciplining capital investment.
Dissertation
Chen, Yue-Sheng y 陳躍升. "Hedging Against the Airlines and Ocean Shipping Industrial Risks with ETF". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/34621538118376244974.
Texto completo朝陽科技大學
企業管理系碩士班
99
Airlines and ocean shipping industries in Taiwan faced strongly impacts since 2007. Because the Airlines and ocean shipping firms have to take heavy operating leverage and financial leverage, they could not ignore the huge uncertainty in oil prices and the over-investment resulted from the optimistic to induce the vicious circle from the market competitions. The global financial tsunami in 2008 had made the terrible impact across almost every sector. The once booming ocean shipping industry, benefiting from several years of torrid shipping volumes and building ever larger ships to meet seemingly never ending demand for international container moves, are suddenly hurting as bad as any industry as shipping demand substantially softens. The airlines industry had also occurred in similar situations as ocean shipping industry, these industries have to not only bear operating risk but also the huge financial risk. Traditionally, the hedging strategies for the airlines and ocean shipping industrial risks would adopt the derivative contracts; however, the transaction costs and the fees of management should be too high for a long-term hedge requirement. However, there was not enough liquidity in Taiwan future and option market for Taiwanese airlines and ocean shipping firms. This paper examines the use of “Exchange Trade Fund (ETF)” to hedge these risks and studies if it is possible to hedge with “Taiwan Top50 Tracker Fund” and “Polaris/P-shares MSCI Taiwan Financials ETF”. Furthermore, this study also adopted the other commodity derivatives and ETFs in the global capital markets.
Bennajah, Mounir. "Traitement des rejets industriels liquide par électrocoagulation/électroflottation en réacteur airlift". Phd thesis, 2007. http://oatao.univ-toulouse.fr/7759/1/bennajah.pdf.
Texto completoDunn, Abraham C. "Three essays in empirical industrial organization". Thesis, 2006. http://hdl.handle.net/2152/29589.
Texto completotext
Saele, Cato. "Linking organisational culture and values with a firm's performance : a case study from the New Zealand airline industry. A 90 credit thesis submitted in partial fulfillment of the requirements for the degree of Master of Business, Unitec Business School, Unitec New Zealand /". Diss., 2007. http://www.coda.ac.nz/cgi/viewcontent.cgi?article=1004&context=unitec_me_di.
Texto completoYu, Chunyan. "A comparative study of alternative methods for efficiency measurement with applications to the transportation industry". Thesis, 1995. http://hdl.handle.net/2429/8829.
Texto completoWang, Rong-Tsu y 王榮祖. "Framework Building and Application of the Performance Evaluation in Transport Industries- Cases of Highway Buses and Domestic Airlines". Thesis, 2001. http://ndltd.ncl.edu.tw/handle/59871269979270358873.
Texto completo國立交通大學
交通運輸研究所
89
The transportation industry falls within the domain of regulation economy, and the transportation industry by nature is a public service industry. Most previous studies concerning performance evaluation of the transportation industry have focused merely on operational performance or level of service, and the evaluation indicators used generally tended to be transportation indicators. Financial performance, which might directly influence the survival of an enterprise, is usually ignored. However, with recent releases on government controls over the industry and increases in privatization and liberalization, financial performance should now be included among evaluation of total operation performance, along with traditional evaluation bases such as the efficiency of resource use and the effectiveness of output utilization. Consequently, this paper proposes a performance evaluation framework with financial ratios taken into considerations. Furthermore, it categorizes the five major accounting elements of assets, debts, owner’s equity, revenue, and expense into three stages of an enterprise operation cycle: factor input, service output, and service consumption. It then proceeds to delineated total operation performance into three types of performance categories: production, marketing, and execution. The result shows that the evaluation framework presented in this paper can be more comprehensive, useful, and feasible. Additionally, because the data on the transportation industry (transportation or finance) is difficult to obtain, this paper uses grey relation analysis to overcome limitation of small sample size and unknown distribution of samples by grouping initial evaluation indicators and selecting representative indicators from among them to perform performance evaluation. The result shows that three indicator types (transportation indicators, financial ratios, and mixed indicators) possess the qualities of both substitution and independence. This demonstrates that if a certain indicator type is used to perform the evaluation, an incomplete view of overall performance will be obtained. Different types of indicators are suited to evaluating different aspects of performance. Transportation indicators are more suitable to measure the production efficiency than financial ratios and mixed indicators, and the execution efficiency is best measured by financial ratios. Finally, two cases study is conducted using the examples of 4 highway buses and 5 domestic airlines, respectively.
Sousa, Francisca Fortunato de. "Warehousing process improvement: The case of an airline company". Master's thesis, 2020. http://hdl.handle.net/10071/21401.
Texto completoCom a intensificação da competitividade entre as linhas aéreas surge a necessidade de refletir sobre a gestão das operações. A logística não é exceção, uma vez que impacta diretamente na operação e consequentemente no número de passageiros. Pesquisas sugerem que o armazém é um dos elementos-chave de uma cadeia de abastecimento (Frazelle, 2002; Gu, Goetschalckx, & McGinnis, 2007) e que de entre as diversas atividades nele existentes, o processo de picking é a mais cara, representando cerca de 55% do custos totais do armazém (De Koster, Le-Duc, & Roodbergen, 2007). O presente estudo investiga como o processo de picking no armazém de inflight catering da Empresa X pode ser melhorado para se tornar mais eficiente. Com base na revisão da literatura sobre estratégias para melhorar o processo picking, entrevistas com funcionários do armazém, observação direta e registos em arquivo, foi possível concluir que a adoção de uma política de alocação de SKUs contribuiria para a redução das distâncias percorridas durante o picking. Centrado numa abordagem de estudo de caso, o Storage Location Assignment Problem foi resolvido com a formulação de um modelo de programação matemática e posteriormente testado para dois cenários. A análise dos resultados permite concluir que a adoção de qualquer um dos cenários propostos representa melhorias significativas face ao cenário atual em relação às distâncias percorridas. Com o estudo elaborado e em conjunto com as recomendações propostas, o processo de picking pode ser melhorado para se tornar mais eficiente.