That the Keynesian Revolution in the 1930s marked a water-shed in economics dividing the Young Turks from the Old Guard is too well known to require discussion. But that World War II and the immediate post-war years marked a similar and possibly greater break in the 'paradigm' of professional...

Extrinsic uncertainty is effective at a competitive equilibrium. This is generic if spot markets are inoperative: the only objects of exchange are assets for the contingent delivery of commodities; and the asset market is incomplete. The structure of payoffs of assets may allow for non-trivial...

At a Nash-Walras equilibrium, individuals exchange commodities competitively, and, simultaneously, they interact strategically. Under standard assumptions, Nash-Walras equilibria exist, equilibrium profiles of actions are, typically, determinate byt Pareto suboptimal, though not constrained...