The chapter has 9 sections, covering the theory of two-sided markets and related empirical work. Section 1 introduces the reader to the literature. Section 2 covers the case of markets dominated by a single monopolistic rm. Section 3 discusses the theoretical literature on competition for the market, focusing on pricing strategies that rms may follow to prevent entry. Section 4 discusses pricing in markets in which multiple platforms are active and serve both sides. Section 5 presents alternative models of platform competition. Section 6 discusses richer matching protocols whereby platforms pricediscriminate by granting access only to a subset of the participating agents from the other side and discusses the related literature on matching design. Section 7 discusses identication in empirical work. Section 8 discusses estimation in empirical work. Finally, Section 9 concludes.
Two-sided market; platform; pricing; network effects; matching;
TSE Working Paper, n. 21-1238, July 2021