In a portfolio selection model with two risky investments having bivariate normally distributed returns, we show that Rubinstein's measures of risk aversion can yield the desirable characterizations of risk aversion and wealth effects on the optimal portfolios. These properties are analogous to...

It is well known that the investment policy maximizing the expected logarithm of wealth each period is a long-run optimal capital growth criterion. However, the growth-optimal strategy entails a considerable risk of losing a substantial portion of wealth for the investment in the short run. This...