In this paper we compare the classical general equilibrium framework of Smith and Marx with the neoclassical one of Arrow and Debreu, and find that these competing paradigms of equilibrium clash on a number of critical issues--efficiency, power, the role of markets, time, the nature of...

We consider option pricing when dynamic portfolios are discretely rebalanced. The portfolio adjustments only occur after fixed relative variation of the stock price. The stock price follows a marked point process and the market is incomplete. We first characterize the equivalent martingale...

We consider a pure exchange economy under uncertainty in which the traders have the non-partition structure of information. They willing to trade the amounts of state-contingent commodities and they know their own expectations. Common knowledge of these conditions among all the traders can...