Utilizando o modelo de equilíbrio com divergências de opinião para prever crashes no mercado acionário brasileiro / Utilizando o modelo de equilíbrio com divergências de opinião para prever crashes no mercado acionário brasileiro

AUTOR(ES)
DATA DE PUBLICAÇÃO

2010

RESUMO

We test, through a series of regressions using brazillian capital market data, the differences of opinion model of Hong and Stein (1999) for forecasting skewness in the distribution of market returns. According to such model, due to short-sales constraints of some investors, the prices do not reflect the exact opinion of all participants. In particular, this hidden information tends to come out during market declines. We conclude that the skewness is most pronounced in stocks that have experienced (1) an increase in trading volume which means that more information is available and, thereby, a higher potencial of differences of opinion of participants and (2) positive returns over the last months

ASSUNTO(S)

volume negociado trading volume modelo de divergências de opiniões assimetria de retornos differences of opinion model economia skewness

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