This paper proves a class of static fund separation theorems, valid for investors with a long horizon and constant relative risk aversion, and with stochastic investment opportunities. An optimal portfolio decomposes as a constant mix of a few preference-free funds, which are common to all...

We propose a new holding horizon measure of active management and examine its relation with fund performance. Our measure identifies long-horizon funds as having higher future long-term alphas and owning stocks with superior long-term fundamentals. Such funds supply skills, but these skills only...

We consider a consumption and investment problem where an investor¡¯s investment opportunity gets enlarged when she becomes rich enough, i.e., when her wealth touches a critical level. We derive optimal consumption and investment rules assuming that the investor has a time-separable von...