Risk and risk aversion are important concepts when modeling how to choose from or rank a set of random variables. This chapter reviews and summarizes the definitions and related findings concerning risk aversion and risk in both a mean-variance and an expected utility decision model context.

This paper presents and implements a procedure which examines for empirical support for the location and scale condition. The Kolmogorov-Smirnov multisample test is used to determine if the distribution functions describing the nonsystematic risk component of rate of return for portfolios of...