Rev Fin 1990; 3:677-693
© 1990 the Society for Financial Studies
Article |
Risk aversion and the intertemporal behavior of asset prices
1 Department of Finance, Management School, Lancaster University, Lancaster LA1 4YX, UK
2 New York University, New York, USA
Abstract
In this article, we characterize economies in which both cash flows and forward prices follow random walks. We show in the case of geometric random walks that the preferences of the representative investor are of the constant proportional risk-aversion type. We also show the conditions under which spot prices follow random walks and under which the equivalent martingale measure is non-state-dependent.