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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Knowledge Spillovers across Europe. Evidence from a Poisson Spatial Interaction Model with Spatial Effects

LeSage, James P., Fischer, Manfred M., Scherngell, Thomas 02 1900 (has links) (PDF)
This paper investigates the impact of knowledge capital stocks on total factor productivity through the lens of the knowledge capital model proposed by Griliches (1979), augmented with a spatially discounted cross-region knowledge spillover pool variable. The objective is to shift attention from firms and industries to regions and to estimate the impact of cross-region knowledge spillovers on total factor productivity (TFP) in Europe. The dependent variable is the region-level TFP, measured in terms of the superlative TFP index suggested by Caves, Christensen and Diewert (1982). This index describes how efficiently each region transforms physical capital and labour into output. The explanatory variables are internal and out-of-region stocks of knowledge, the latter capturing the contribution of cross-region knowledge spillovers. We construct patent stocks to proxy regional knowledge capital stocks for N=203 regions over the 1997- 2002 time period. In estimating the effects we implement a spatial panel data model that controls for the spatial autocorrelation due to neighbouring regions and the individual heterogeneity across regions. The findings provide a fairly remarkable confirmation of the role of knowledge capital contributing to productivity differences among regions, and add an important spatial dimension to the discussion, by showing that productivity effects of knowledge spillovers increase with geographic proximity. (authors' abstract)
92

Neigborhood effects in schooling and in the labor market

Rosolia, Alfonso 12 January 2005 (has links)
A lo largo de los ultimos diez años los economistas hemos reconocido que en muchos casos las decisiones individuales se ven afectadas por las decisiones, los comportamientos las preferencias de otros agentes no solamente atraves del mercado sino tambien directamente por imitacion o aprendimiento, por el desarrollo de reglas sociales compartidas, por la difusion de informacion. Muchos estudios han estudiado estos mecanismos en varios contextos. Entre otros destacan la educacion, el mercado laboral, la criminalidad, las habitudines sanitarias. La relevancia de estos efectos de neighborhood es positiva y normativa a la vez. Por un lado, su existencia contribuye a la comprension de la extrema variabilidad de algunos fenomenos economicos entre grupos de individuos aparentemente homogeneos. Por otro lado, su existencia es una componente fundamental para el desarollo de intervenciones eficientes por parte del policy maker. Los estudios de la tesis analizan estos efectos en el contexto de las decisiones esscolares y en el mercado laboral. En el primer capitulo se muestra como la decision y el exito en completar la educacion segundaria por parte de los varones adolescentes afecta positivamente la de las mujeres de la misma edad residentes en las mismas ciudades. La muestra campionaria utilizada permite conlcuir que la correlacion entre los exitos de los varones y de las mujeres corresponde de hecho a una relacion causal entre las dos variables. Se concluye que cualquier intervencion que consiga aumentar la probabilidad de completar los estudios segundarios de los varones del uno por ciento tendrà como consequencia tambien un aumento de la probabilidad de las mujeres adolescentes de completar estos estudios entre 0.6 y 0.7 por ciento. En el segundo capitulo se evaluan los efectos sobre la durada del paro de pertenecer a un grupo social mas amplio.
93

Impacts of Volatility Spillovers, Economic Volatility and Capital Inflows on Mortgage-backed Financial Markets

Tilahun, Ayanou Z. 01 December 2009 (has links)
The first essay explores the dynamic behaviors of mortgage-backed stock returns and their volatility spillovers within the framework of time-varying symmetric, asymmetric and multivariate GARCH-family models. The focus of the chapter is on the dynamics of volatility of the U.S. real estate investment trusts (REITs) and volatility spillovers within the REITs subdivisions as well as between the REITs and the Fannie Mae (FNM) and theFreddie Mac (FRE) mortgage-backed stocks. We analyze risk-return linkages using the GARCH-in-mean (GARCH-M) model. The presence of asymmetric effects of "bad" news and "good" news on conditional financial volatilities is evaluated using the Threshold ARCH (TARCH) model and the exponential GARCH (EGARCH) model. Volatility spillovers and comovements within REITs subdivisions; REITs with FNM and FRE and other selected financial assets are examined using the multivariate GARCH (MGARCH) model. The second essay investigates factors behind the existence of time-varying conditional volatilities of mortgage-backed securities (MBS). This is done by analyzing the impacts of economic volatilities on mortgage-backed financial markets' performance. The relationship between conditional volatilities of the MBS and conditional volatilities of the key economic fundamentals in the housing sector and the macroeconomy are explored. The sensitivity of mortgage-backed stocks to the underlying time-series changes in economic fundamentals, and the extent to which economic volatilities explain the variation in mortgage-backed stocks' volatilities are investigated. Particularly, we examined whether changes in the REITs, FNM and FRE volatilities are linked to and driven by time-varying volatilities of the housing sector economic activity and set of key macroeconomic variables. Thus, the chapter analyzes the impacts of conditional economic volatilities on the conditional volatilities of the REITs, FRE and FNM stocks. The GARCH (p, q) process is used to find conditional volatility dynamics for the economic variables in the study. Then we employ multivariate GARCH (p, q) model to investigate the spillovers and comovements among the conditional economic fundamentals' volatilities and the conditional volatilities of the MBS. The third essay explores the impacts of foreign sector of the economy on the mortgage-backed financial markets and the housing sector. There is large surge of foreign capital flows to the U.S, particularly since late 1990s. The net foreign holdings of U.S. financial assets have become very significant in the U.S. Treasury notes and bonds. Foreign investors also hold a growing share of securities of the U.S. agencies and government sponsored enterprises (GSEs). Similarly, foreign direct investment in the U.S. real estate as well as real estate equities in the form of REITs has grown sharply. To this end, a multivariate vector autoregression (VAR) model is the main tool of analysis. Based on the VAR model, generalized impulse response functions and generalized variance decompositions are employed to evaluate the responses of mortgage interest rates and Treasury yields to the changes in net foreign ownership of U.S. Treasuries and agency bonds.
94

Spreading the word or reducing the term spread? Assessing spillovers from euro area monetary policy

Feldkircher, Martin, Gruber, Thomas, Huber, Florian 05 1900 (has links) (PDF)
As a consequence of asset purchases by the European Central Bank (ECB), longer-term yields in the euro area decline, and spreads between euro area long-term yields narrow. To assess spillovers of these recent financial developments, we use a Bayesian variant of the global vector autoregressive (BGVAR) model with stochastic volatility and propose a novel mixture of zero impact and sign restrictions that we impose on the cross-section of the data. Both shocks generate positive and significant spillovers to industrial production in Central, Eastern and Southeastern Europe (CESEE) and other non-euro area EU member states. These effects are transmitted via the financial channel (mainly through interest rates and equity prices) and outweigh costs of appreciation pressure on local currencies vis-á-vis the euro (trade channel). While these results represent general trends, we also find evidence for both cross-country heterogeneity of effects within the euro area and region-specific spillovers thereof. / Series: Department of Economics Working Paper Series
95

Potencialidades locais, turismo e desenvolvimento local para o cariri paraibano.

SOUSA, Luiz Gonzaga de. 08 October 2018 (has links)
Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-10-08T12:55:27Z No. of bitstreams: 1 LUIZ GONZAGA DE SOUSA - TESE (PPGRN) 2011.pdf: 1391846 bytes, checksum: 9e86fc51966b7695b6539ac05a0ea77a (MD5) / Made available in DSpace on 2018-10-08T12:55:27Z (GMT). No. of bitstreams: 1 LUIZ GONZAGA DE SOUSA - TESE (PPGRN) 2011.pdf: 1391846 bytes, checksum: 9e86fc51966b7695b6539ac05a0ea77a (MD5) Previous issue date: 2011-12-14 / O Cariri paraibano tem convivido, ao longo dos tempos, com uma taxa muito baixa de desenvolvimento econômico e social. A proposta para este caso é que as potencialidades locais (econômica, histórica, geográfica, política e social) do Cariri paraibano, via estratégias turísticas, podem impulsionar o desenvolvimento local. Daí, o objetivo deste trabalho: fazer um estudo multidisciplinar das potencialidades locais, incluindo o capital social, impulsionadas pelo turismo para fomentar estratégias para desenvolvimento participativo, com utilização de empowerment e spillovers, de tal maneira que os setores produtivos da economia impulsionem um crescimento conjunto, para uma melhor qualidade de vida da população. O método aqui adotado configura uma abordagem de análise sistêmica, participativa, com o uso de inferência estatística, levantamento dos pontos fortes e fracos, para detecção dos ganhos ou perdas, onde todos se sintam envolvidos nessa integração local. isso porque as formas tradicionais de desenvolvimento econômico, já não respondem ao que se pretende alcançar. Assim, o importante é que haja integração dos atores sociais e agentes econômicos, para que se consigam os benefícios que as comunidades necessitam, como paradigma exequível em outras localidades. Em suma, o desenvolvimento econômico, político e social é uma preocupação essencial de todos os que fazem o Cariri Paraibano, visto que localidades com baixo nível de renda precisam melhorar sua posição no cenário desenvolvimentista. / The Cariri paraibano live, throughout the times, with a tax very low of economic and social development. The thesis proposal, is that, the economic and social potentialities of the Cariri paraibano, saw strategies tourist, stimulates the local development. From there that, the objective of this work is to make a study to multidiscipline of the local potentialities, including the capital stock, stimulated for the tourism to foment strategies for participatory development, with an use of empowerment and spillovers, in such way that the productive sectors of the economy stimulate a joint growth, for one better quality of life of the population. The method used here configures a boarding of sistemic, participatory analysis, with the inference use statistics, survey of the strong and weak points, for detention of the profits or losses, where all are felt involved in this local integration; since, the traditional forms of economic development, already do not answer what it is intended to reach. Thus, the important one is that it has integration of economic the social and agent actors, so that the benefits are obtained that the communities need; e, as feasible paradigm in other localities. Finally, the economic development, social politician and the ones are an essential concern of all that make the Cariri Paraibano; since, localities with low level of income need to improve its position in scene of development.
96

A criação de conhecimento em clusters industriais

Vilela Júnior, Dalton Chaves January 2010 (has links)
Esta tese propõe um quadro referencial abrangente para analisar os elementos envolvidos na criação de conhecimento em clusters (CCC), tema não completamente abordado pela literatura. A CCC é um processo que visa ampliar a base de conhecimento, compreendendo o cluster, a governança do cluster e/ou a coletividade dos membros. O quadro proposto contempla os diferentes atores que operam em clusters (empresas, instituições de ensino e pesquisa, governo, instituições de cooperação e instituições para financiamento), os níveis onde o conhecimento é criado (nas organizações, na governança e no cluster) e as diferentes dimensões do conhecimento (tecnológica, gerencial, relacional e estratégica). A estratégia da pesquisa previu a realização de quatro estudos de caso: no cluster de desenvolvimento de software em Manaus – AM – Brasil (Amazonsoft), no cluster de ciências da vida com foco em biotecnologia na região de Marseille – França (Bioméditerranée), no cluster de móveis na região de Bento Gonçalves – RS – Brasil (Pólo Moveleiro da Serra Gaúcha) e no cluster têxtil na região de Caxias do Sul – RS – Brasil (Pólo de Moda da Serra Gaúcha). Os principais resultados apontam para: a) a importância do conhecimento criado no nível do cluster para o desenvolvimento coletivo; b) a importância do conhecimento criado pelos membros decorrente de sua participação no cluster; c) a influência do setor industrial; do estágio de desenvolvimento e da composição do cluster na CCC; d) o papel da governança na potencialização da CCC; e) a relevância dos spillovers como um dos impulsionadores do conhecimento no cluster; f) a ligação entre a capacidade absortiva dos membros e a CCC; g) a necessidade de envolvimento dos membros na expansão do conhecimento no cluster; h) a consideração das diferentes dimensões do conhecimento para o desenvolvimento e a sustentabilidade dos clusters. Estes resultados podem orientar o desenvolvimento de novas pesquisas sobre a CCC e podem auxiliar a tomada de decisão de gestores de clusters, de membros de clusters e de agências governamentais para impulsionarem a CCC nos clusters, os quais estão envolvidos. / This dissertation proposes a comprehensive theoretical framework to analyze the factors involved in the Clusters Knowledge Creation (CKC), a subject that still is not totally covered by the literature. CKC is a process designed to increase the knowledge base, comprising the cluster, the cluster governance and/or its member‘s community. The proposed framework contemplates the different parties that operate in clusters (companies, educational and research institutions, government, cooperation agencies, and financial institutions), the levels where knowledge creation takes place (in the organizations, in the governance structure and in the cluster) and the different knowledge dimensions (technological, managerial, strategic, and relational). The research strategy relied on the performance of four case studies: the software development cluster in Manaus - AM - Brazil (AmazonSoft), the life sciences cluster focused on biotechnology in the region of Marseille - France (Bioméditerranée), the furniture cluster in the region of Bento Gonçalves - RS - Brazil (Pólo Moveleiro da Serra Gaúcha), and the textile cluster in the region of Caxias do Sul - RS - Brazil (Pólo de Moda da Serra Gaúcha). The main results highlight: a) the importance of the knowledge created at the cluster level for the collective development; b) the importance of the knowledge created by members due to their participation in the cluster; c) the influence of industrial sector, development stage and cluster composition in the CKC; d) the governance role to increase the CKC; e) the spillovers relevance as one of the drivers of the cluster knowledge; f) the link between members absorptive capacity and CKC; g) the need of members‘ embeddedness for the expansion of cluster‘s knowledge; and h) the consideration of different knowledge dimensions for the cluster‘s development and sustainability. These results can guide the development of new researches about CKC. Moreover, it may assist the decision-making process of clusters‘ managers, cluster members and government entities to propel the CKC in the clusters to which they are associated.
97

Políticas climáticas, crescimento econômico e bem-estar: uma abordagem dinâmica multirregional / Climate policy, economic growth, and well-being: a multiregional dynamic approach

Sousa, Geovânia Silva de 26 February 2015 (has links)
Submitted by Amauri Alves (amauri.alves@ufv.br) on 2015-11-30T15:07:10Z No. of bitstreams: 1 texto completo.pdf: 728003 bytes, checksum: 9c5081919c7327d70fde3c3085cfca84 (MD5) / Made available in DSpace on 2015-11-30T15:07:10Z (GMT). No. of bitstreams: 1 texto completo.pdf: 728003 bytes, checksum: 9c5081919c7327d70fde3c3085cfca84 (MD5) Previous issue date: 2015-02-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A contenção do aumento da temperatura, gerado pelos altos níveis de concentração dos GEE na atmosfera, tem sido um desafio para os cientistas e formuladores de políticas. Um dos maiores entraves à implementação de políticas climáticas de mitigação têm sido os custos incorridos para as economias. Nesse sentido, buscou-se analisar, neste estudo, o desempenho das economias desenvolvidas e em desenvolvimento com a implementação da política climática de redução das emissões, na presença dos spillovers tecnológicos. Para tanto, foi elaborado uma variante do modelo MIND, que permitiu estender as análises para diversas regiões, considerando o comércio bilateral e os spillovers tecnológicos, em um contexto de mudanças climáticas. Com base nas análises feitas, constatou-se influência positiva dos spillovers tecnológicos, uma vez que a elevação no desempenho econômico das regiões bem como nas negociações internacionais e no bem-estar não acarretaram elevação no nível de emissões, visto que estes níveis se mantiveram inalterados. A política climática aplicada somente para os países desenvolvidos, conforme proposto inicialmente pelo protocolo de Kyoto, não foi suficiente para causar impactos positivos ou negativos sobre as variáveis. Quando aplicada para ambos, países desenvolvidos e em desenvolvimento, verificou-se pequena redução no desempenho das economias e no bem-estar, todavia a intensidade da redução nos níveis de emissões de CO 2 foi expressiva, demonstrando com isso que a cooperação entre os países em prol da estabilização da temperatura atmosférica implica maior eficiência da política climática. Por conseguinte, ao considerar a política climática global em conjunto com os spillovers tecnológicos, que aumentam a eficiência energética, houve redução significativa das emissões de CO 2 e elevação tanto no crescimento como no nível de bem-estar, associadas a uma distribuição aceitável dos custos entre as economias. Depreende-se que a alternativa mais eficaz no sentido de mitigar as emissões de GEE e alcançar a estabilidade da xiitemperatura seja a instituição de uma política climática global, associada aos spillovers tecnológicos, ao passo que as economias foram positivamente influenciadas, houve também considerável redução nos níveis de emissões. Ademais, a adição dos spillovers tecnológicos significa maior potencial de redução das perdas, ou potencialização dos ganhos de bem-estar. Adicionado a isso, a estabilidade climática implica melhor funcionamento dos ecossistemas, reduzindo as incertezas relacionadas às questões ambientais, que se refletem diretamente na sobrevivência da espécie humana. / The containment of the increasing temperature generated by high concentration levels of greenhouse gas (GHG) in the atmosphere has been a challenge for scientists and public policymakers. One of the biggest obstacles to the implementation of climate mitigation policies have been costs incurred for the economies. In this sense, this study sought to analyze the performance of developed and developing economies with the implementation of climate policy for gases emissions in the presence of technological spillovers. Therefore, a variant of the Mind model was created, which allowed extending the analysis for different regions considering the bilateral trade and technological spillovers in a context of climate changes. On the basis of analysis, it was found positive influence of technological spillovers, since the increasing economic performance in the regions, as well as in international negotiations and wellbeing, did not cause increasing emission levels, which maintained unchanged. The climate policy applied only to developed countries, as initially proposed by the Kyoto Protocol, was not enough to cause positive or negative impacts on the variables. When applied to both developed and developing countries, there was slight reduction in performance of economies and well-being, but the levels’ reduction intensity of Cτ 2 emissions was significant, showing that the cooperation among the countries in favor of the atmospheric temperature stabilization involves more efficiency of climate policy. Therefore, when considering the global climate policy together with technological spillovers that increase energy efficiency, there was significant reduction of CO 2 emissions and increasing of both growth and the well-being level associated with an acceptable distribution of costs among economies. It is concluded that the most effective alternative to mitigate GHG emissions and achieve temperature stability could be the establishment of a global climate policy associated with technological spillovers, since there was also considerable reduction in gas emission, while the economies were positively influenced. Furthermore, the addition of technological spillovers means greater potential for xivreducing losses or potentiation of well-being gains. Added to this situation, the climate stability entails better functioning of ecosystems, reducing the uncertainties related to environmental issues, which directly affects the human species survival.
98

STOCK MARKET RETURNS AND VOLATILITY: MACROECONOMIC NEWS ANNOUNCEMENTS, INTERACTIONS, AND MARKET RISK ANALYSIS

Alharaib, Mansour 01 August 2018 (has links)
This study examines how stock market returns and volatility responses to macroeconomic news announcements in US and Europe, and oil prices. Moreover, the market risk associated with these stock markets based on selected countries and regions is also analyzed here. In all chapters, the data is in a weekly time horizon and it covers 21 countries from different contents. In particular, Data covers three different time periods, i.e. full sample from 1/1/2000 to 12/31/2015, before the financial crisis, i.e. from 1/1/2000 to 9/27/2008 and after the financial crisis, i.e. from 10/11/2008 to 12/31/2015. Chapter 2 studies the impact of macroeconomic news announcements on stock markets in 21 countries using US and European countries macroeconomic news announcements. The first part investigates the impact of macroeconomic news announcements surprises in US and European Countries on stock markets returns in these countries. The second part analyzes the impact of macroeconomic news announcements in US and European Countries on stock markets volatility in these countries. Our results show that stock markets in selected countries react differently to macroeconomic news announcement in US and Europe. Chapter 3 study the interaction and volatility spillover between oil prices and stock markets returns and volatility in selected countries and regions. Oil prices are based on West Texas Intermediate (WTI). The analysis use VAR(1)-GARCH(1,1) model to capture the interdependence between stocks market and oil prices. The findings show that there is interdependence between stock markets and oil price changes in most selected countries and regions. Chapter 4 study the market risk in stock markets returns in selected countries and regions using IGARCH(1,1) and GARCH(1,1) to obtain the value at risk (VaR) and the expected shortfall (ES). The findings of chapter 4 show that market risk was high for most selected countries before the financial crisis and low after the financial crisis.
99

A criação de conhecimento em clusters industriais

Vilela Júnior, Dalton Chaves January 2010 (has links)
Esta tese propõe um quadro referencial abrangente para analisar os elementos envolvidos na criação de conhecimento em clusters (CCC), tema não completamente abordado pela literatura. A CCC é um processo que visa ampliar a base de conhecimento, compreendendo o cluster, a governança do cluster e/ou a coletividade dos membros. O quadro proposto contempla os diferentes atores que operam em clusters (empresas, instituições de ensino e pesquisa, governo, instituições de cooperação e instituições para financiamento), os níveis onde o conhecimento é criado (nas organizações, na governança e no cluster) e as diferentes dimensões do conhecimento (tecnológica, gerencial, relacional e estratégica). A estratégia da pesquisa previu a realização de quatro estudos de caso: no cluster de desenvolvimento de software em Manaus – AM – Brasil (Amazonsoft), no cluster de ciências da vida com foco em biotecnologia na região de Marseille – França (Bioméditerranée), no cluster de móveis na região de Bento Gonçalves – RS – Brasil (Pólo Moveleiro da Serra Gaúcha) e no cluster têxtil na região de Caxias do Sul – RS – Brasil (Pólo de Moda da Serra Gaúcha). Os principais resultados apontam para: a) a importância do conhecimento criado no nível do cluster para o desenvolvimento coletivo; b) a importância do conhecimento criado pelos membros decorrente de sua participação no cluster; c) a influência do setor industrial; do estágio de desenvolvimento e da composição do cluster na CCC; d) o papel da governança na potencialização da CCC; e) a relevância dos spillovers como um dos impulsionadores do conhecimento no cluster; f) a ligação entre a capacidade absortiva dos membros e a CCC; g) a necessidade de envolvimento dos membros na expansão do conhecimento no cluster; h) a consideração das diferentes dimensões do conhecimento para o desenvolvimento e a sustentabilidade dos clusters. Estes resultados podem orientar o desenvolvimento de novas pesquisas sobre a CCC e podem auxiliar a tomada de decisão de gestores de clusters, de membros de clusters e de agências governamentais para impulsionarem a CCC nos clusters, os quais estão envolvidos. / This dissertation proposes a comprehensive theoretical framework to analyze the factors involved in the Clusters Knowledge Creation (CKC), a subject that still is not totally covered by the literature. CKC is a process designed to increase the knowledge base, comprising the cluster, the cluster governance and/or its member‘s community. The proposed framework contemplates the different parties that operate in clusters (companies, educational and research institutions, government, cooperation agencies, and financial institutions), the levels where knowledge creation takes place (in the organizations, in the governance structure and in the cluster) and the different knowledge dimensions (technological, managerial, strategic, and relational). The research strategy relied on the performance of four case studies: the software development cluster in Manaus - AM - Brazil (AmazonSoft), the life sciences cluster focused on biotechnology in the region of Marseille - France (Bioméditerranée), the furniture cluster in the region of Bento Gonçalves - RS - Brazil (Pólo Moveleiro da Serra Gaúcha), and the textile cluster in the region of Caxias do Sul - RS - Brazil (Pólo de Moda da Serra Gaúcha). The main results highlight: a) the importance of the knowledge created at the cluster level for the collective development; b) the importance of the knowledge created by members due to their participation in the cluster; c) the influence of industrial sector, development stage and cluster composition in the CKC; d) the governance role to increase the CKC; e) the spillovers relevance as one of the drivers of the cluster knowledge; f) the link between members absorptive capacity and CKC; g) the need of members‘ embeddedness for the expansion of cluster‘s knowledge; and h) the consideration of different knowledge dimensions for the cluster‘s development and sustainability. These results can guide the development of new researches about CKC. Moreover, it may assist the decision-making process of clusters‘ managers, cluster members and government entities to propel the CKC in the clusters to which they are associated.
100

Métodos quantitativos de avaliação de transbordamentos de conhecimento: uma aplicação ao sistema local de Tecnologia da Informação e Comunicação de Campinas. / Quantitative methods for knowledge spillover analysis: an application to the Campinas\' Information Technology and Communications Cluster.

Veneziano de Castro Araújo 28 January 2008 (has links)
Esta dissertação tem por objetivos revisar alguns estudos quantitativos de transbordamentos de conhecimento e testar suas ferramentas num aglomerado brasileiro. Estes métodos são amplamente utilizados na literatura internacional e, após esta revisão, foi executada uma pesquisa no Sistema Local de Produção (SLP) de Tecnologia da Informação e Comunicação (TIC) de Campinas. A discussão sobre as características, qualidades e limitações destes cinco tipos de estudos (função produção de conhecimento, citação de patentes, mobilidade de trabalhadores qualificados, comércio de novos produtos e contatos informais) levou a opção de aplicar uma pesquisa baseada principalmente no método dos contatos informais e, de modo exploratório, numa variante da citação de patentes que usa as citações de artigos científicos como indicador primordial. O questionário foi respondido por profissionais da região que atuam em atividades de TIC. Entre os resultados da pesquisa alguns se sobressaem. Primeiro, há uma expressiva presença de transbordamentos de conhecimento na região de Campinas e esta é uma importante forma de obtenção de conhecimento por parte dos funcionários das empresas do ramo de TIC. Segundo, os funcionários com maiores capacitações e com maior experiência no setor tendem a obter conhecimento mais valioso de seus colegas. Terceiro, os funcionários de empresas multinacionais obtém menos conhecimento de seus contatos informais, pois têm acesso a outros meios para resolução de problemas dentro da própria firma, enquanto isso, os funcionários de empresas brasileiras tendem a recorrer a seus colegas para a resolução de problemas. Por fim, pela análise das citações de artigos científicos, foi possível evidenciar que o conhecimento está realmente concentrado uma vez que a grande maioria das citações são para trabalhos de autores vinculados a instituições de Campinas. / This dissertation goals are review some quantitative studies of knowledge spillovers and test its tools in a brazilian case. These methods are largely adopted in international literature and, after the review, two of theses methods have been applied to the Campinas Information and Communication Technology (ICT) Local System. The discussion about characteristics, qualities and limitations of five types of studies (knowledge production function, patent citation, mobility of skilled worker, commerce of new products and informal contacts) induced to adopt the informal contact method as the main tool of analysis and a variant of patent citation that uses scientific articles citations as the primordial indicator. The questionnaire was responded by professionals engaged in ICT activities in several Campinass firms. Among the results, some are more expressive. First, there is a great presence of knowledge spillovers at Campinas region and it is an important way that ICT firms workers gain access to knowledge. Second, more skilled employees and that with more experience tend to obtain more valorous knowledge from theirs colleagues. Third, the multinationals workers gain less knowledge from theirs informal contacts because they has access to other forms inside the firm to solve problems, otherwise, the brazilian firms employees tend to use their colleagues to solve problems. Finally, with the analysis of scientific articles citations, it is possible to see some evidence that the knowledge is really locally concentrated because the great majority of citations are to works with authors linked to Campinas institutions.

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