1 DELEGATION AND POLARIZATION OF PLATFORMS

IVIE working papers o¤er in advance the results of economic research under way in order to encourage a discussion process before sending them to scienti…c journals for their …nal publication. * We thank Alberto Alesina, Levent Koçkesen, Antonio Merlo, Ronny Razin, Vijay Krishna, Alessandro Lizzeri, and seminar participants at Alicante, Columbia, Copenhagen, and NYU for helpful comments. A good fraction of this research was conducted while Ok was a visitor in the Department of Economics at University of Alicante; he thanks for the kind hospitality of this institution. We gratefully acknowledge th