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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

Dois ensaios sobre aspectos da instabilidade financeira

Salles, Jo?o Ant?nio Domingues de 26 February 2014 (has links)
Made available in DSpace on 2015-04-14T14:27:08Z (GMT). No. of bitstreams: 1 457641.pdf: 915889 bytes, checksum: 34b55d35a08a4175e8dddbd4d69f3b8f (MD5) Previous issue date: 2014-02-26 / This master thesis presents two papers devoted to Minsky s theory of financial instability. Studies have as starting point LIMA and MEIRELLES (2007). The objective is to develop a macrodynamic model where the following points are considered: the indebtedness influence on bank interest rate, the liquidity trap phenomenon, and the cyclical nature of economic fragility. In the first paper, LIMA and MEIRELLES (2007) and other related models are presented, intending to discuss the dynamics arising from bank interest rate and indebtedness. The new dynamics is based on Lotka-Volterra equations, with the sensivity of the interest rate regarding to indebtedness of the economy there included. The interest rate performs the role of the prey in Lotka-Volterra model, while the variable indebtedness acts as predator. The adopted structure for the new dynamics results in a cyclical behavior of the variables, thus promoting a fundamental change in the model and ensuring the achievement of the paper s objectives. The second paper runs simulations according the new dynamics. Economies chosen for the simulations were: United States, Spain, Brazil and the European Union. Parameters construction was based on January-November 2006 data for these economies. Results showed a cyclical nature of economies supporting theoretical correspondence with the model previously developed in the first paper, within workable intervals in the analyzed economies, corroborating subsequently observed trajectories, in addition. / Esta disserta??o apresenta dois artigos dedicados ? teoria da instabilidade financeira de Minsky. Os estudos t?m por ponto de partida LIMA e MEIRELLES (2007). O objetivo ? desenvolver um modelo macrodin?mico onde sejam considerados os seguintes pontos: a influ?ncia do endividamento na taxa de juros banc?ria; o fen?meno da armadilha de liquidez; e o car?ter c?clico da fragilidade econ?mica. No primeiro ensaio, apresenta-se o modelo de LIMA e MEIRELLES (2007) e outros relacionados, tendo por objetivo discutir din?micas que podem ser constru?das a partir das vari?veis taxa de juros banc?ria e grau de endividamento. A nova din?mica ? baseada nas equa??es de Lotka-Volterra, sendo inclu?da a sensibilidade da vari?vel taxa de juros ao grau de endividamento da economia. A taxa de juros assume o comportamento atribu?do ? presa no modelo Lotka-Volterra, enquanto a vari?vel grau de endividamento fica associada ? din?mica do predador. A estrutura adotada para a nova din?mica tem como resultado um comportamento c?clico para as vari?veis e promove uma altera??o fundamental do modelo, garantindo o alcance dos objetivos propostos no artigo. O segundo ensaio executa simula??es para a nova din?mica desenvolvida. As economias escolhidas para as simula??es foram: Estados Unidos, Espanha, Brasil e Uni?o Europeia. A constru??o dos par?metros foi feita a partir de dados dessas economias no per?odo de janeiro a novembro de 2006. Os resultados obtidos para os par?metros utilizados apontaram um car?ter c?clico das economias demonstrando correspond?ncia te?rica com o que foi desenvolvido no primeiro artigo, dentro de intervalos fact?veis nas economias analisadas, al?m de corroborar trajet?rias posteriormente observadas.

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