Choking under pressure and gender : evidence from professional tennis / Danny Cohen-Zada (Ben-Gurion University of the Negev and IZA), Alex Krumer (SEW, University of St. Gallen), Mosi Rosenboim (Ben-Gurion University of the Negev), Offer Moshe Shapir (New York University Shanghai and Sapir Academic College) ; IZA, Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, February 2017