This discussion paper led to a publication in the 'European Economic Review' (2013). Vol. 61, pp. 186-204.<P> Rational Expectations (RE) models have two crucial dimensions: 1) agents correctly forecast future prices given all available information, and 2) given expectations, agents solve...</p>

This discussion paper led to a publication in 'Macroeconomic Dynamics' (2013). Vol. 17(8), pp. 1574-1604.<P> The recent macroeconomic literature stresses the importance of managing heterogeneous expectations in the formulation of monetary policy. We use a stylized macro model of Howitt (1992) to...</p>

This discussion paper resulted in a publication in <A HREF="http://link.springer.com/article/10.1023/A%3A1003253925406">'De Economist'</A>, 1998, 146, 59-89.<P> Since the 1950's economists applied game theoretical concepts to a wide variety of economic problems. The Nash equilibrium concept has proven to be a powerful instrument in analyzing the outcome of economic...</p></a>

We study a model of collective decision making with endogenous information collection.Agents collect information about the consequences of a project, communicate, and then vote onthe project. We examine under what conditions communication may increase the probability thatgood decisions are made....

We develop a theoretical framework for studying the effects of interaction on the quaJity of decision-making by monetary policy committees. We show that interaction, i.e. increasing one's expertise through an exchange of views, is most likely not to result in interdependent voting...

We study two aspects of globalization. It allows a decision-maker to go beyond his own local experience and to learn from other decision-makers in addressing common problems. This improves the identification and diffusion of best practices. It also provides extra information to `markets' that...