Investor attention and the risk-return trade-off

초록

Previous empirical studies find a negative and significant relation between risk measures and expected future stock returns. Using four risk measures, we document that the negative risk -return relation is more pronounced among firms that receive high levels of attention from in-vestors, while a standard positive risk-return relation holds among stocks to which investors pay little attention. Regardless of our proxy for risk, we find that the magnitude and statistical sig-nificance of the risk-related puzzle monotonically decreases as we move from high to low levels of investor attention. These findings suggest that investor attention may play a central role in risk-related anomalies.

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