A two-period model of an economy with production and with uncertain future outputs and resources is investigated. Intertemporal trade is only possible via the stock market. Spanning equilibrium allocations lie always in the "smallest core" of each replica of the economy. If a feasible allocation...

When a large group of people is affected by a bargaining outcome, practical reasons often require that the group be represented by an agent in the bargaining. This paper addresses the issue of how the group ensures that the agent reaches an agreement that satisfies the group. The authors show...

A general equilibrium model is introduced where a household may consist of several members, each with individual preferences and/or resources. When households obey collective rationality, certain intrahousehold externalities can be fully internalized by the respective households so that...