Template-Type: ReDIF-Paper 1.0 Title: Managing Competition on a Two-Sided Platform Author-Name: Paul Belleflamme Author-Email: Paul.Belleflamme@univ-amu.fr Author-Name: Martin Peitz Author-Email: martin.peitz@gmail.com Classification-JEL: D43, L13, L86 Keywords: Network effects, two-sided markets, platform competition, intermediation, pricing, imperfect competition Abstract: On many two-sided platforms, users on one side not only care about user participation and usage levels on the other side, but they also care about participation and usage of fellow users on the same side. Most prominent is the degree of seller competition on a platform catering to buyers and sellers. In this paper, we address how seller competition affects platform pricing, product variety, and the number of platforms that carry trade. Note: Length: 26 Creation-Date: 2018-07 Revision-Date: File-URL: https://www.crctr224.de/research/discussion-papers/archive/dp028 File-Format: application/pdf Handle: RePEc:bon:boncrc:CRCTR224_2018_028