This paper analyses the incentives of a vertical integrated Internet service provider (ISP) to block competitors from content markets. Using a simple model we find that the ISP does not block competing content providers as long as the contents are differentiated sufficiently. Exclusion only...

In several markets, firms compete not for consumer expenditure but instead for consumer attention. We model and characterize how households allocate their scarce attention in arguably the largest market for attention: the Internet. Our characterization of household attention allocation operates...

The market for Internet search is not only economically and socially important, it is also highly concentrated. Is this a problem? We study the question whether 'competition is only a free click away'. We argue that the market for Internet search is characterized by indirect network...

I model access to influence as a two-sided matching market between a continuum of experts and two vertically differentiated gatekeepers under sequential directed search. Real-world examples include academic publishing, venture capital, job search or political agenda setting. The equilibrium is...

Market power on each side of a multisided platform, whether in the form of increasing prices or decreasing quality, is constrained by the risk of losing sales on the other sides. That tends to weaken market power on each side and encourages platforms to keep prices lower and quality higher than...

The market for Internet search is not only economically and socially important, it is also highly concentrated. Is this a problem? We study the question whether "competition is only a free click away". We argue that the market for Internet search is characterized by indirect network...