compatible with observed price processes. In the more realistic context of partial information, the equilibrium analysis permits … are compatible ; In particular, we derive from the equilibrium conditions some links between the price processes …

What I argue in this paper is that the direction economics ,and particularly theoretical economics, took in the 20th … reflection of his vision. He was convinced that economics should have “sound mathematical foundations” and his concern for this … of equilibrium became the benchmark for modern economic theory and led us to the Arrow-Debreu model which is …

Orthodox economics rests on the belief that if markets were fully competitive, there would be general efficiency. The …

, compatible with some equilibrium) if and only if it is, when appropriately renormalized, a martingale for some equivalent …

This paper presents an equilibrium model in a pure exchange economy when investors have three possible sources of … impact of investors heterogeneity on the properties of the equilibrium. In particular, we analyze the consumption shares, the …

coalition structure, we show that the stability index relative to the equilibrium, to the beta core and to the exact core is a …

Focusing mainly on equilibrium existence results, this paper emphasizes the role of fixed point theorems in the … development of general equilibrium theory, as well for its standard definition as for some of its extensions. …

coalition structure, we show that the stability index relative to the equilibrium, to the beta core and to the exact core is a …