In this paper, we explore the hypothesis that an important force behind the collapse in advertising revenue experienced by newspapers over the past decade is the greater consumer switching facilitated by online consumption of news. We introduce a model of the market for advertising on news media...

This article examines patterns of entry and exit in a relatively homogeneous product market to investigate the impact of entry on incumbent firms and market structure. In particular, we are interested in whether the organizational form of entrants matters for the competitive decisions of...

Economists have often viewed the adoption of artificial intelligence (AI) as a standard process innovation where we expect that efficiency will drive adoption in competitive markets. This paper models AI based on recent advances in machine learning that allow firms to engage in better...