Monopolists selling complementary products charge a higher price in a static equilibrium than a single multiproduct monopolist would, reducing both the industry profits and consumer surplus. However, firms could instead reach a Pareto improvement by lowering prices to the single monopolist...

This Article addresses an important question in modern antitrust: when large investment funds have holdings across an industry, is competition depressed?The question of the impact of common ownership on competition has gained much attention as the role of institutional shareholding has grown,...

Horizontal shareholding exists when significant shareholders have stock in horizontal competitors. (It is often imprecisely called "common shareholding," but that term can also apply when shareholders own stock in two noncompeting corporations. It differs from "cross-shareholding," which...

This Article shows that new economic proofs and empirical evidence provide powerful confirmation that, even when horizontal shareholders individually have minority stakes, horizontal shareholding in concentrated markets often has anticompetitive effects. The new economic proofs show that,...

Recent research has shown that the standard labor matching model hasdifficulties in reproducing the co-movement patterns observed in US data. Thisis due to the fact that the standard model lacks sufficient propagation of shocks.This paper shows that refining the informational structure of the...

Recent research has shown that the standard labor matching model hasdifficulties in reproducing the co-movement patterns observed in US data. Thisis due to the fact that the standard model lacks sufficient propagation of shocks.This paper shows that refining the informational structure of the...

In this essay we compare and contrast the methods used by courts and other institutions in the United States and in the European Union to resolve the conflicts that inevitably arise between competition law and other laws, policies, and values. In the U.S., because its generally-worded antitrust...

Following the FCC Notice of proposed Rulemaking and the request for public comments a lively debate on how to protect the open Internet ensued and has now been closed by the approval of strong net neutrality rules by the FCC. This paper discusses the economic merit of alternative forms of...

This study examines how industry peers share information when they are engaged in tacit collusion. We develop a model of firms' information sharing and production decisions and use it to establish that firms engaged in tacit collusion are more likely to share information when current market...

This paper evaluates the recent literature claiming that the US economy has generally become less competitive causing the US economy to perform poorly and that lax antitrust policy is one important reason for the decline in economic performance. Although there certainly are empirical facts...