Efeito disposição entre gestores brasileiros de fundos de ações

Eduardo Pozzi Lucchesi, Claudia Emiko Yoshinaga and Francisco Henrique Figueiredo de Castro

RAE - Revista de Administração de Empresas, 2015, vol. 55, issue 1

Abstract: The disposition effect predicts that investors tend to sell winning stocks too soon and ride losing stocks too long. Despite the wide range of research evidence about this issue, the reasons that lead investors to act this way are still subject to much controversy between rational and behavioral explanations. In this article, the main goal was to test two competing behavioral motivations to justify the disposition effect: prospect theory and mean reversion bias. To achieve it, an analysis of monthly transactions for a sample of 51 Brazilian equity funds from 2002 to 2008 was conducted and regression models with qualitative dependent variables were estimated in order to set the probability of a manager to realize a capital gain or loss as a function of the stock return. The results brought evidence that prospect theory seems to guide the decision-making process of the managers, but the hypothesis that the disposition effect is due to mean reversion bias could not be confirmed.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:fgv:eaerae:v:55:y:2015:i:1:a:44921

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