In this paper, we establish the existence of Berge's strong equilibrium for games with n persons in infinite dimensional space in the case where the payoff function of each player is quasi-concave. Moreover, we study the continuity of Berge's strong equilibria correspondence and essential games.

In this paper, we first give a direct proof of the existence of Edgeworth equilibria for exchange economies with consumption sets which are (possibly) unbounded below. The key assumption is that the individually rational utility set is compact. It is worth noticing that the statement of this...

In this paper, we investigate the existence of a competitive equilibrium in an intertemporal pure exchange model with a countable number of periods and a countable number of agents. This model covers both the overlapping generations case and the case where there is an infinite number of...