Scholars and antitrust enforcers have raised concerns about anticompetitive effects that may arise when institutional investors hold substantial stakes in competing firms. Their concern rests on empirical evidence that such common concentrated ownership is associated with higher prices and lower...

Prior research finds that when investors receive credible bad news about a firm, they revise their valuations of that firm downward. We examine a setting where investors receive bad news about a firm and revise their valuations of that firm upward. Specifically, we find that when activist...

We identify a group of investors with a track-record of owning firms that undergo securities class action lawsuits. We hypothesize and find evidence that these investors are ineffective monitors of corporate management. Firms with a large proportion of these shareholders are at greater risk of...

A corporate governance model built around hierarchical structures, in which authority and empowerment flows through the board of directors to management and eventually staff, and the board is responsible to shareholders (the owners) of a company, worked well in an era of industrial capitalism,...

This paper reviews the background, practice, core problems, effectiveness and prospects of corporate governance in Hong Kong. Areas discussed include the standard and core problems, legal and regulatory framework, owner-directors and conflicts with minority shareholders, directors' duties and...

Partial ownership of stock in multiple competing firms is an important scholarly and policy topic in both corporate and antitrust law. Until now, the discussion has focused on ownership. This essay shifts the debate from a focus on common ownership to a focus on common control. No prior work has...

Minority shareholdings have been on the regulatory agenda of competition authorities for some time. Recent empirical studies, however, draw attention to a new, thought provoking theory of harm: common ownership by institutional investors holding small, parallel equity positions in several...

A phenomenon known as “Common Ownership” arises when shareholders hold substantial stakes in competing firms. Although recent empirical evidence has illustrated how common concentrated owners are associated with higher product market prices and lower output, scholars remain divided as to the...

We present a simple model of common ownership in which an investor chooses its stake in competing firms in light of the effects on firm behavior and firm profits. Two firms compete in Cournot duopoly, and ownership affects a firm’s objective function in the manner posited by Bresnahan & Salop...

Although empirical studies show that common shareholding affects corporate conduct and that common horizontal shareholding lessens competition, critics have argued that the law should not take any action until we have clearer proof on the causal mechanisms. I show that we actually have ample...