We show that if an agent is uncertain about the precise form of his utility function, his actual relative risk aversion may depend on wealth even if he knows his utility function lies in the class of constant relative risk aversion (CRRA) utility functions. We illustrate the consequences of this...

Downside deviation, semivariance, or the second lower partial moment are different names for the same risk measure, proposed in the literature for capturing the downside risk of investment decisions. This paper analyzes multiperiod decision making under such a risk measure, and finds that a...