In this paper, we consider a security market in which two investors on different information levels maximize their expected logarithmic utility from terminal wealth. While the ordinary investor's portfolio decisions are based on a public information flow, the insider possesses from the beginning...

In this note we ask when Epstein-Zin-Weil (EZW) recursive utility over the infinite horizon is well-founded. EZW recursive utility has a parameter $\gamma 0$ representing risk aversion and a parameter $\psi 0$ representing intertemporal elasticity of substitution, and is an extension of...

We study the sensitivity of optimal consumption streams with respect to perturbations of the random endowment. At the leading order, the consumption adjustment does not matter: any choice that matches the budget constraint simply shifts the original utility by the marginal value of the...