Does the consciousness of the disposition effect increase the equity premium?

Patrick ROGER

Working Papers of LaRGE (Laboratoire de Recherche en Gestion et Economie) from Laboratoire de Recherche en Gestion et Economie, Université de Strasbourg (France)

Abstract: The disposition effect is a well established phenomenon in the empirical and experimental financial literature. It leads to sell winners too early and to hold losers too long. In this paper, we show that the consciousness of the disposition effect by investors lead them to require a greater risk premium to invest in stocks (when compared to rational investors). We also analyze the role of the evaluation period for disposition investors. We show that the risk premium they require is a decreasing function of the delay between two evaluations of their portfolio. The influence of the evaluation period on the equity premium looks like the one induced by myopic loss aversion (Benartzi-Thaler, 1995) but the origin is different. Valuing more often a portfolio give more occasions to sell winning stocks and then decreases the expected return. This point is analyzed by assuming that returns are driven by a Brownian motion and that investors evaluate their portfolio at regularly spaced dates.

Keywords: Disposition effect; equity premium puzzle; loss aversion; behavioral finance. (search for similar items in EconPapers)
JEL-codes: G11 G14 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-upt
Date: 2007
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Persistent link: http://EconPapers.repec.org/RePEc:lar:wpaper:2007-01

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