Common Ownership, Institutional Investors, and Antitrust

One of the most important issues in antitrust at the moment is whether institutional investors’ significant equity holdings in U.S. companies are substantially harming competition in violation of the antitrust laws. In a new article, available here, I conduct a systematic analysis of the competitive effects of common ownership and show that, while there are economically sound reasons why common ownership can generate substantial competitive harm, there are also economically sound reasons why, in a given market, it may not. For that reason, the mere fact that institutional investors’ significant equity holdings generate high levels of common ownership by … Read more