We demonstrate that in a CAPM economy Homogeneity,Walras' Law, and the Tobin Separation Property characterize market demand on finite sets of prices. Consequently, for any number n there exist CAPM economies which have at least n equilibria and hence have n different beta pricing formulas....

Risk aversion in game theory is usually modeled using expected utility, which was criticized early on, leading to an extensive literature on generalized expected utility. In this paper we are the first to apply μ-σ theory to the analysis of (static) games. μ-σ theory is widely accepted in...

It has long been known in the literature how to include income taxes in the valuation of companies. These taxes can be neutral and therefore do not influence the company value, provided certain conditions are met; essentially, a firm's cash flows have to be taxed the same way as those of a...

Incorporating a progressive or convex income tax into valuation problems raises the question of the appropriate tax rate to use in common valuation formulas. We apply arbitrage theory in a riskless, as well as risky, (multi-period) economy to answer this question. It turns out that the...