NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Mental Accounting, Loss Aversion, and Individual Stock Returns

Nicholas Barberis, Ming Huang

NBER Working Paper No. 8190
Issued in March 2001
NBER Program(s):   AP

We study equilibrium firm-level stock returns in two economies: one in which investors are loss averse over the fluctuations of their stock portfolio and another in which they are loss averse over the fluctuations of individual stocks that they own. Both approaches can shed light on empirical phenomena, but we find the second approach to be more successful: in that economy, the typical individual stock return has a high mean and excess volatility, and there is a large value premium in the cross-section which can, to some extent, be captured by a commonly used multifactor model.

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Document Object Identifier (DOI): 10.3386/w8190

Published: Barberis, N. and M. Huang. “Mental Accounting, Loss Aversion, and Individual Stock Returns." Journal of Finance 56 (2001): 1247-1292.

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