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Sunspots in the Laboratory

By John Duffy and Eric O'N. Fisher

American Economic Review, June 2005

We show that extrinsic or nonfundamental uncertainty influences markets in a controlled environment. This work provides the first direct evidence of sunspot equilibria. These equilibria require a common understanding of the semantics of the sunspot variab...

The Willingness to Pay-Willingness to Accept Gap, the "Endowment Effect," Subject Misconceptions, and Experimental Procedures for Eliciting Valuations

By Charles R. Plott and Kathryn Zeiler

American Economic Review, June 2005

We conduct experiments to explore the possibility that subject misconceptions, as opposed to a particular theory of preferences referred to as the "endowment effect," account for reported gaps between willingness to pay ("WTP") and willingness to accept (...

International Unions

By Alberto Alesina, Ignazio Angeloni, and Federico Etro

American Economic Review, June 2005

We model an international union as a group of countries deciding to centralize the provision of public goods, or policies, that generate externalities across union members. The trade-off between the benefits of coordination and the loss of independent pol...