The main contribution of the paper is to provide a weaker non-satiation assumption than the one commonly used in the literature to ensure the existence of competitive equilibrium. Our assumption allows for satiation points in the set of individually feasible consumptions, provided that the...

Simple games are a powerful tool to analyze decision-making and coalition formation in social and political life. In this paper we present relational models of simple games and develop relational algorithms for solving some game-theoretic basic problems. The algorithms immediately can be...

The coalition formation problem in an economy with externalities can be adequately modeled by using games in partition function form (PFF games), proposed by Thrall and Lucas. If we suppose that forming the grand coalition generates the largest total surplus, a central question is how to...

This paper studies the link between the design of international environmental agreements and the incentives for the private sector to invest in cleaner technologies. More specifically, it compares the performance, in the Paretoo sense, of two types of agreement : an agreement on a uniform...

This note proposes an example which contradicts the idea that similar countries will negotiate an agreement on a uniform standard. It shows that strictly identical countries may have an interest in reducing their emissions differently, and not in a uniform way. This result relies on the...

We consider a model of influence with a set of non-strategic agents and two strategic agents. The non-strategic agents have initial opinions and are linked through a simply connected network. They update their opinions as in the DeGroot model. The two strategic agents have fixed opinions, 1 and...