In his pivotal contributions during the marginal revolution, Leon Walras along with W.S. Jevons assigned subjective utility directly to commodities (goods and services) as, in effect, a simplifying assumption — an assumption destined to become the keystone of neoclassical economics. But this...

We study an intertemporal consumption and portfolio choice problem under Knightian uncertainty in which agent's preferences exhibit local intertemporal substitution. We also allow for market frictions in the sense that the pricing functional is nonlinear. We prove existence and uniqueness of the...

Frank H. Knight's classic, Risk, Uncertainty and Profit, became a standard textbook and reference for students at the University of Chicago, the London School of Economics and Political Science, and elsewhere from the 1930s until at least the 1950s. Knight never published new or revised editions...

We derive a class of utility functions that are equivalent with respect to a well-defined functional form. We apply a general view of constant relative risk aversion to investigate on different equivalence relations. Then we compare our results with standard applications in economics and finance.

We derive a class of utility functions that are equivalent with respect to a well-defined functional form. We apply a general view of constant relative risk aversion to investigate on different equivalence relations. Then we compare our results with standard applications in economics and finance.

We extend the analysis of the intertemporal utility maximization problem for Hindy-Huang-Kreps utilities reported in Bank and Riedel (1998) to the stochastic case. Existence and uniqueness of optimal consumption plans are established under arbitrary convex portfolio constraints, including both...