Ludovic JULIEN EconomiX, University of Paris X-Nanterre   200 avenue de la République Nanterre, Ile de France 92001 France   ludovic.julien@u-paris10.fr   http://economix.u-paris10.fr       Primary Research Focus: Macroeconomics of coordination failures, general equilibrium and imperfect competition   JEL Areas: A1 : General Economics: General E0 : Macroeconomics and Monetary Economics: General