Over the past three decades, platform competition—the competition between firms that
facilitate transactions and govern interactions between two or more distinct user groups who …

Platforms are everywhere. The rise of Uber, Netflix, and Facebook has attracted a lot of
attention to this business model. However, despite its relevance and presence in the digital …

This Chapter provides a survey of the economics literature on multi-sided platforms with
particular focus on competition policy issues, including market definition, mergers …

How do firms respond to entry in multi-sided markets? We address this question by studying
the impact of Craigslist, a website providing classified-advertising services, on local US …

This paper develops a structural model of newspaper markets to analyze the effects of
ownership consolidation, taking into account not only firms' price adjustments but also the …

We propose an analysis of platform competition based on the academic literature with a
view towards competition policy. First, we discuss to which extent competition can emerge in …

Consumer-to-consumer (C2C) platforms have become a major engine of growth in Internet
commerce. This is especially true in countries such as China, which are experiencing a big …

The chapter has ten sections, which cover the theory of two-sided markets and related
empirical work. Section 1 introduces the reader to the literature. Section 2 covers the case of …

We study price competition and entry of platforms in multi-sided markets. Utilizing the
simplicity of the equilibrium pricing formula in our setting with heterogeneity of customers' …

We study the competitive forces which shaped ideological diversity in the US press in the
early twentieth century. We find that households preferred like-minded news and that …