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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.
1

Price relationships and market integration: A northeast of Brazil case study.

Mayorga, Ruben Dario. January 1989 (has links)
The Granger causality test was used to explore the price interdependence in the wholesale tomato markets of Fortaleza, Teresina and Sao Luis in the Northeast of Brazil. Following the results of this study, the conclusion is reached that, in general terms, the prices in these markets are established efficiently implying a competitive environment in the Northeast tomato markets. Fortaleza operates as a leading market "driving" the prices of the Teresina and Sao Luis secondary markets.
2

Modelo de Stackelberg na competição de empresas privadas e estatais pela expansão da oferta de energia eletrica / Stalckelberg model in the competition between state-owned and private firms for the expansion in the electric energy supply

Correia, Tiago de Barros 07 May 2004 (has links)
Orientadores: Sergio Valdir Bajay, Paulo de Barros Correia / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica / Made available in DSpace on 2018-08-04T03:28:31Z (GMT). No. of bitstreams: 1 Correia_TiagodeBarros_M.pdf: 4487327 bytes, checksum: 60ea88ba7ef70d513098bc65eee08632 (MD5) Previous issue date: 2004 / Resumo: o processo de reforma que vem ocorrendo na indústria elétrica brasileira, desde a segunda metade da década de 1990, sofreu uma infiexão em 2002, quando os programas de privatizações foram congelados, estabilizando a convivência de empresas estatais e privadas numa estrutura mista na indústria elétrica brasileira. O presente trabalho busca analisar o efeito, na eficiência econômica do mercado de eletricidade, do confronto competitivo de empresas que atuam sob a lógica privada (maximização dos lucros) com empresas estatais, que, sob pressão de seu acionista majoritário - o governo, se vêem obrigadas a ter como uma de suas principais metas a maximização dos impactos de políticas públicas. Para tanto, são utilizados conceitos da teoria dos jogos, concorrência potencial, mercados contestáveis, poder de mercado e regulação econômica. O mercado de eletricidade é visto como um ambiente competitivo de Stackelberg, sendo a intervenção estatal incorporada e considerada parte das regras do jogo. Essa concepção de mercado é compatível com o recém estabelecido no setor elétrico brasileiro e pode contribuir para a atual discussão em torno de sua implementação / Abstract: The process of structural reform that has been occurring in the Brazilian electric industry since the second half of the 1990's suffered an infiection in 2002. The programs of privatizations were interrupted, stabilizing a hybrid structure where state-owned and private firms coexist in the same market. This thesis intends to analyze the effect, in the economic efficiency of the Brazilian electricity market, of the competition between agents who act under the private logic (profit maximization) and those who are compelled by their major shareholder - the government - to have the maximization of the impacts of public policies as one of their main goals. To reach such purpose, concepts from the games theory, potential competition, contestable markets, market power and economic regulation are employed. The electricity market is seen as a Stackelberg competitive environment, with the state intervention being incorporated and considered part of the rules of the game. This market concept is compatible with the recently defined institutional mo del of the Brazilian electric sector and can contribute for the current discussion concerning its implementation / Mestrado / Planejamento de Sistemas de Petroleo / Mestre em Planejamento de Sistemas de Petroleo

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