BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Análise Econômica (Online) |
Texto Completo: | https://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/10732 |
Resumo: | The objective of this article is to criticize neoclassical models of asset price bubbles and to argue that a general theory of asset price cycles demands the substitution of rational expectations hypothesis for bounded rationality assumption. In order to do that we will initially present the two neoclassical approaches for the problem of asset price bubbles. The first one, based on models of multiple equilibria with rational expectations, take financial markets as competitive and investors's behavior as based on perfect and complete information. In this setting, asset bubbles are a logically possible but unprobable phenomenon since their ocurrence will be associated with problems of dynamic ineficience which are not a relevant problem for most of capitalist economies. The second approach, initially developed by Krugman, take as a starting point the idea that financial market are far from perfect. In fact, these markets have a great number of imperfections as, for example, moral hazard. In this approach, asset price bubbles are the result of trading in assets with low supply-price elasticity as, for example, equities and land. Although this second approach is more realistic than the first, it is not capable to explain in a unified framework the appearance, propagation and burst of the speculative bubble; i.e the phenomenon of asset price cycles. This second approach is only capable to show the conditions for the existence of an asset bubble; but it is not capable to explain the dynamic evolution of the bubble. This question is better adressed by heterodox literature based on the hypothesis of bounded rationality. |
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BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVASBOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVASBubbles. Financial Markets. Rafionality.JEL ClassificationD84E44Gl2G14Bubbles. Financial Markets. Rafionality.JEL ClassificationD84E44Gl2G14The objective of this article is to criticize neoclassical models of asset price bubbles and to argue that a general theory of asset price cycles demands the substitution of rational expectations hypothesis for bounded rationality assumption. In order to do that we will initially present the two neoclassical approaches for the problem of asset price bubbles. The first one, based on models of multiple equilibria with rational expectations, take financial markets as competitive and investors's behavior as based on perfect and complete information. In this setting, asset bubbles are a logically possible but unprobable phenomenon since their ocurrence will be associated with problems of dynamic ineficience which are not a relevant problem for most of capitalist economies. The second approach, initially developed by Krugman, take as a starting point the idea that financial market are far from perfect. In fact, these markets have a great number of imperfections as, for example, moral hazard. In this approach, asset price bubbles are the result of trading in assets with low supply-price elasticity as, for example, equities and land. Although this second approach is more realistic than the first, it is not capable to explain in a unified framework the appearance, propagation and burst of the speculative bubble; i.e the phenomenon of asset price cycles. This second approach is only capable to show the conditions for the existence of an asset bubble; but it is not capable to explain the dynamic evolution of the bubble. This question is better adressed by heterodox literature based on the hypothesis of bounded rationality.The objective of this article is to criticize neoclassical models of asset price bubbles and to argue that a general theory of asset price cycles demands the substitution of rational expectations hypothesis for bounded rationality assumption. In order to do that we will initially present the two neoclassical approaches for the problem of asset price bubbles. The first one, based on models of multiple equilibria with rational expectations, take financial markets as competitive and investors's behavior as based on perfect and complete information. In this setting, asset bubbles are a logically possible but unprobable phenomenon since their ocurrence will be associated with problems of dynamic ineficience which are not a relevant problem for most of capitalist economies. The second approach, initially developed by Krugman, take as a starting point the idea that financial market are far from perfect. In fact, these markets have a great number of imperfections as, for example, moral hazard. In this approach, asset price bubbles are the result of trading in assets with low supply-price elasticity as, for example, equities and land. Although this second approach is more realistic than the first, it is not capable to explain in a unified framework the appearance, propagation and burst of the speculative bubble; i.e the phenomenon of asset price cycles. This second approach is only capable to show the conditions for the existence of an asset bubble; but it is not capable to explain the dynamic evolution of the bubble. This question is better adressed by heterodox literature based on the hypothesis of bounded rationality.UFRGS2009-10-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/1073210.22456/2176-5456.10732Análise Econômica; Vol. 21 No. 40 (2003): setembro de 2003Análise Econômica; v. 21 n. 40 (2003): setembro de 20032176-54560102-9924reponame:Análise Econômica (Online)instname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSporhttps://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/10732/6343Copyright (c) 2019 Análise Econômicainfo:eu-repo/semantics/openAccessOreiro, José Luís2019-08-29T12:41:01Zoai:seer.ufrgs.br:article/10732Revistahttps://seer.ufrgs.br/index.php/AnaliseEconomicaPUBhttps://seer.ufrgs.br/index.php/AnaliseEconomica/oai||rae@ufrgs.br2176-54560102-9924opendoar:2019-08-29T12:41:01Análise Econômica (Online) - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.none.fl_str_mv |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
title |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
spellingShingle |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS Oreiro, José Luís Bubbles. Financial Markets. Rafionality. JEL Classification D84 E44 Gl2 G14 Bubbles. Financial Markets. Rafionality. JEL Classification D84 E44 Gl2 G14 |
title_short |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
title_full |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
title_fullStr |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
title_full_unstemmed |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
title_sort |
BOLHAS RACIONAIS, CICLO DE PREÇOS DE ATIVOS E RACIONALIDADE LIMITADA: UMA AVALIAÇÃO CRÍTICA DOS MODELOS NEOCLÁSSICOS DE BOLHAS ESPECULATIVAS |
author |
Oreiro, José Luís |
author_facet |
Oreiro, José Luís |
author_role |
author |
dc.contributor.author.fl_str_mv |
Oreiro, José Luís |
dc.subject.por.fl_str_mv |
Bubbles. Financial Markets. Rafionality. JEL Classification D84 E44 Gl2 G14 Bubbles. Financial Markets. Rafionality. JEL Classification D84 E44 Gl2 G14 |
topic |
Bubbles. Financial Markets. Rafionality. JEL Classification D84 E44 Gl2 G14 Bubbles. Financial Markets. Rafionality. JEL Classification D84 E44 Gl2 G14 |
description |
The objective of this article is to criticize neoclassical models of asset price bubbles and to argue that a general theory of asset price cycles demands the substitution of rational expectations hypothesis for bounded rationality assumption. In order to do that we will initially present the two neoclassical approaches for the problem of asset price bubbles. The first one, based on models of multiple equilibria with rational expectations, take financial markets as competitive and investors's behavior as based on perfect and complete information. In this setting, asset bubbles are a logically possible but unprobable phenomenon since their ocurrence will be associated with problems of dynamic ineficience which are not a relevant problem for most of capitalist economies. The second approach, initially developed by Krugman, take as a starting point the idea that financial market are far from perfect. In fact, these markets have a great number of imperfections as, for example, moral hazard. In this approach, asset price bubbles are the result of trading in assets with low supply-price elasticity as, for example, equities and land. Although this second approach is more realistic than the first, it is not capable to explain in a unified framework the appearance, propagation and burst of the speculative bubble; i.e the phenomenon of asset price cycles. This second approach is only capable to show the conditions for the existence of an asset bubble; but it is not capable to explain the dynamic evolution of the bubble. This question is better adressed by heterodox literature based on the hypothesis of bounded rationality. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-10-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/10732 10.22456/2176-5456.10732 |
url |
https://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/10732 |
identifier_str_mv |
10.22456/2176-5456.10732 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.ufrgs.br/index.php/AnaliseEconomica/article/view/10732/6343 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Análise Econômica info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Análise Econômica |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UFRGS |
publisher.none.fl_str_mv |
UFRGS |
dc.source.none.fl_str_mv |
Análise Econômica; Vol. 21 No. 40 (2003): setembro de 2003 Análise Econômica; v. 21 n. 40 (2003): setembro de 2003 2176-5456 0102-9924 reponame:Análise Econômica (Online) instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Análise Econômica (Online) |
collection |
Análise Econômica (Online) |
repository.name.fl_str_mv |
Análise Econômica (Online) - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
||rae@ufrgs.br |
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1799766266154582016 |