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International Workshop
General Equilibrium and Strategic Interactions:
Theories and Applications

September 25-26th 2008
University of Paris X
'K' building, Conference room

Recent developments in general equilibrium theory focus on strategic interactions. Several models offer strategic foundations for the theory of perfect competition. Others analyze the functioning of markets and the working of market power in economies where competition takes place on multiple markets among many agents. This workshop is devoted to recent developments in the field.

Thursday morning: Mathematical Economics

09h00-09h30 : Welcome

09h30-10h30 : F. BUSETTO (University of Udine), G. CODOGNATO (University of Udine) & S. GHOSAL (University of Warwick):
Non cooperative oligopoly in markets with a continuum of traders
Discussant: L. JULIEN (ECONOMIX, University of Paris West-Nanterre)

10h30-10h45: Coffee Break

10h45-11h45: J.M. BONNISSEAU (CES-CERMSEM, University of Paris I):
Existence and Optimality of oligopoly equilibrium in linear exchange economies
Discussant: C. BIDARD (ECONOMIX, University of Paris West-Nanterre)

11h45-12h45: G. GIRAUD (CES-CERMSEM, University of Paris I) & H. STAHN (GREQAM, University of Aix-Marseille III):
On Shapley-Shubik equilibria with financial markets
Discussant: TBA

12h45-14h30: LUNCH

Thursday afternoon: Multilateral exchange and welfare

14h30-15h30: O. GODAL (University of Bergen):
On strategic market games: from Nash to Walras or to Autarky
Discussant: F. TRICOU (ECONOMIX, University of Paris West-Nanterre)

15h30-16h30: L. JULIEN (ECONOMIX, University of Paris West-Nanterre) & F. TRICOU (ECONOMIX, University of Paris West-Nanterre):
Market price mechanisms and Stackelberg general equilibria
Discussant: TBA

16h30-17h00: Coffee Break

17h00-18h00: B. CRETTEZ (ECONOMIX, University of Paris West-Nanterre), M.C. FAGART (University of Paris V):
Does entry improve welfare? A general equilibrium approach to competition policy
Discussant: TBA

Friday: Micro/Macro Applications

09h30-10h30: T. ISAAC (CORE, Catholic University of Louvain):
Markets with pairwise meetings: when frictions favour information revelation
Discussant: A. SAIDI (ECONOMIX, University of Paris West-Nanterre)

10h30-10h45: Coffee Break

10h45-11h45: C. BEVERELLI (Graduate Institute of International Studies, Geneva), C. MAHLSTEIN (Graduate Institute of International Studies, Geneva):
Outsourcing and competition policy
Discussant: B. COESTIER (ECONOMIX, University of Paris West-Nanterre)

11h45-12h45: J. BEUGNOT (LAMETA, University of Montpellier I):
The effects of a minimum wage increase in a model with multiple unemployment equilibria
Discussant: L. JULIEN (ECONOMIX, University of Paris West-Nanterre)

12h45: LUNCH

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