We analyse a Ramsey economy when net investment is constrained to be non negative. We prove existence of a competitive equilibrium when utility need not hold. The analysis is carried out by means of direct and technically standard strategy.

We analyze a Ramsey economy when net investment is constrained to be non negative. We prove existence of a competitive equilibrium when utility need not be bounded from below and the Inada-type conditions need not hold. The analysis is carried out by means of a direct and technically standard...

In this paper the existence of unemployment is partly explained as being the result of coordination failures. This is achieved by considering a standard general equilibrium model and splitting the set of commodities in two groups. The first group contains commodities like gold. The prices of...

In this paper, we prove an existence theorem for equilibria in production economies with increasing returns, which generalizes the classic results on this topic. In particular, we eliminate both the free-disposal assumptions and any smoothness requirements on the boundary of the production sets....

In this paper the existence of unemployment is partly explaines as being the result of coordination failures. This is achieved by considering a standard general equilibrium modes and splitting the set of commodities in two groups. The first group contains commodities like gold. The prices of...

In this paper, we prove an existence theorem for equilibria in production economies with increasing returns, which generalizes the classis results on this topic. In partular, we eliminate both the free-disposal assumptions and any smoothness requirements on the boundary of the production sets....

We consider a dynamic two-country, two-commodity model in which each country specializes in the production of one commodity and trades with the other to consume both goods. The amount of capital used for production in one country generates externalities in the production of the other. This is...

We investigate the effectiveness of tax and transfer policies in correcting market distortions when the economy is imperfectly competitive. We perform this analysis in the context of an exchange model representing a bilateral oligopoly situation, which constitutes a particular example of a...

In this paper, we compare, in the framework of exchange economies with an atomless continuum of traders, two models of noncooperative exchange “a` la Cournot-Nash” with consistent prices which belong to a line of reseach initiated by Shapley and Shubik (1977).

This contribution investigates the effictiveness and welfare implications of fiscal policies in a context of multilateral trade, when traders behave strategically. The present approach deals simultaneously with two aspects of fiscal policies: collecting resources for redistributive purposes and...