We study incumbency advantage in markets with positive consumption externalities. Users of an incumbent platform receive stochastic opportunities to migrate to an entrant. They can accept a migration opportunity or wait for a future opportunity. In some circumstances, users have incentives to...

Computational antitrust promises not only to help antitrust agencies preside over increasingly complex and dynamic markets, but also to provide companies with the tools to assess and enforce compliance with antitrust laws. If research in the space has been primarily dedicated to supporting...

We propose a parsimonious model of bilateral trade under asymmetric information to shed light on the prevalence of intermediation chains that stand between buyers and sellers in many decentralized markets. Our model features a classic problem in economics where an agent uses his market power to...

Why do so many high-priced acquisitions of entrepreneurial firms take place in network industries? We develop a theory of commercialization (entry or sale) in network industries showing that high equilibrium acquisition prices are driven by the incumbents' desire to prevent rivals from acquiring...

This paper analyses the quality provision of interrelated market firms under different market structures both theoretically and empirically.A theoretical model is built,where a media firm offers newspapers in a primary market and advertising space in the secondary market.Furthermore,the media...

Why do so many high-priced acquisitions of entrepreneurial firms take place in network industries? We develop a theory of commercialization (entry or sale) in network industries showing that high equilibrium acquisition prices are driven by the incumbents' desire to prevent rivals from acquiring...

We examine the global operations of multi-product firms. We present a flexible heterogeneous-firm trade model with either limited or strong scope for quality differentiation. Using customs data for China during 2002-2006, we empirically establish that firms allocate activity across products in...

This paper analyses the quality provision of interrelated market firms under different market structures both theoretically and empirically. A theoretical model is built, where a media firm offers newspapers in a primary market and advertising space in the secondary market. Furthermore, the...

How competition affects product quality and how product quality choices impact firms' operating performance are open empirical questions. We use a setting that is especially suitable to answering these questions: cryptographic exchanges, on which product quality is inversely related to fake...