SANDEEP BALIGA Northwestern University, USASAMUEL BOWLES University of Massachusetts, USAADAM BRANDENBURGER New York University, USACOLIN F. CAMERER California Institute of Technology, USAROSS CRESSMAN Wilfred Laurier University, CanadaMARTIN W.CRIPPS University College London, UKMARTIN DUFWENBERG University of Arizona, USAHERBERT GINTIS University of Siena, Italy& University of Massachusetts, USAFARUK GUL Princeton University, USAJOSEPH Y. HALPERN Cornell University, USASERGIU HART The Hebrew University Jerusalem, IsraelAVIAD HEIFETZ The Open University, IsraelEHUD KALAI Northwestern University, USAMICHAEL KEARNS University of Pennsylvania, USAVIJAY KRISHNA Penn State University, USAJOHN O, LEDYARD California Institute of Technology, USAOLOF LEIMAR Stockholm University, SwedenKANDORI MICHIHIRO University of Tokyo, JapanJOHN MORGAN University of California Berkeley, USASTEPHEN MORRIS Princeton University, USAROGER B. MYERSON University of Chicago, USAJOHN NACHBAR Washington University, St Louis, USAMARTIN J. OSBORNE University of Toronto, Canada PHILIP J. RENY University of Chicago, USAWILLIAM H. SANDHOLM University of Wisconsin Madison, USAMARK A. SATTERTHWAITE Northwestern University, USAROBERTO SERRANO Brown University, USAMARCIANO SINISCALCHI Northwestern University, USATOMAS SJÖSTRÖM Rutgers University, USAXAVIER VIVES University of Navarra, SpainMARK WALKER University of Arizona, USAROBERT B. WILSONStanford University, USAJOHN WOODERS University of Arizona, USAPEYTON H. YOUNG Johns Hopkins University, USA