5. A Model of Investor Sentiment

Author: Shleifer, Andrei

Source: Inefficient Markets, March 2000 , pp. 112-154(43)

Publisher: Oxford Scholarship Online Monographs

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Abstract:

Studies how investors form their beliefs. It begins with an overview of some of the empirical violations of market efficiency that recent models of investor sentiment try to address. It then presents an alternative model motivated by the idea that, in forecasting future earnings, investors interpret data on recent past earnings conservatively and using the representativeness heuristic. The simple model is consistent with both psychological evidence and the evidence from security price. At the end, some possible extensions are discussed.

Keywords: representativeness heuristic; financial market; psychology; earnings; investor sentiments; belief; security price; conservatism; market efficiency

Document Type: Research article

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