The Case for Preemptive Oligopoly Regulation

45 Pages Posted: 8 Oct 2020

See all articles by Jeffrey Manns

Jeffrey Manns

George Washington University Law School

Date Written: August 2, 2020


One of the few things President Donald Trump and leading Democrats appear to agree on is the need to subject Big Technology (“Big Tech”) firms to anti-trust scrutiny. But unsurprisingly they disagree about how to address the problem. Senator Elizabeth Warren and many other leading Democrats have called for breaking up large technology firms, such as Google, Amazon, and Facebook, in a revival of the trust-busting progressive era of the early twentieth century. In contrast, the Trump administration has triggered more traditional anti-trust monopoly review of potential anti-competitive activities of a number of leading technology firms, which is more likely to lead to financial sanctions (or more modest consequences).

This article argues that politicians may be identifying a legitimate concern about the market power of actors in highly concentrated markets. But they are looking at the problem through the wrong lens as the larger concern is less monopoly and more oligopoly domination (and more the potential than the current impact of oligopolies on the marketplace). The challenge of oligopolies is that it is difficult to monitor the individual and collective exercise of market power by oligopolists. Existing oligopoly regulation in the United States is almost exclusively reactive and fails to identify and address the potential impact of market concentration with the notable exception of the Federal Trade Commission’s and Department of Justice’s review of prospective mergers. The article makes the case for creating a mandate for federal regulators to oversee oligopolies in a preemptive way in order to better identify the potential for market abuses and to open up concentrated markets to greater competition. The underlying logic is that even if regulators cannot pinpoint anti-trust violations in the present, the higher the degree of market concentration, the greater the risk that oligopolies will possess and exercise market power to entrench their power and undercut competition. But rather than focusing on invasive divestments, this article suggests that policymakers consider employing a range of disclosure rules, regulatory exemptions, and tax incentives to level the playing field for smaller competitors in oligopolistic markets.

This article focuses on the imperative for anti-trust oversight of “filtering” or “access oligopolies” who serve as gatekeepers against fraud, data aggregators, and screeners of information and reputation. A small number of oligopolists dominate internet searches, social networking, online shopping, and more traditional spheres of accounting, rating agencies, and investment banking. Participants in these concentrated markets can easily engage in conscious parallelism to mimic one another’s prices and practices because of the homogenous nature of the goods or services they provide. But the defining feature of many of these oligopolists is that they have prioritized market share growth and entrenchment by focusing on economies of scale, network benefits, and barriers to entry, rather than the conventional supracompetitive pricing that monopolists and oligopolists have embraced in the past. In fact, the paradox of many of these filtering intermediaries is that they may even enhance consumer welfare, such as by offering internet searches or messaging for “free” to consumers, while at the same time leveraging their market power to pressure corporate clients to adopt or retain their services.

Conventional anti-trust regulation focuses on preventing monopolists’ abuse of their market power to distort market pricing. In contrast, anti-trust regulation of oligopolies is almost exclusively reactive and limited in scope. Regulators prohibit express collusion among oligopolies and impose limits on the expansion of oligopolies through mergers and acquisition based on the potential impact on market concentration. But regulators lack the means to remedy the underlying entrenchment of oligopolies and the resulting market distortions when there is no evidence of express communication or circumstantial evidence of agreement among the parties.

This article will suggest that anti-trust regulators sustain preemptive periodic oversight of highly concentrated markets (rather than react primarily in response to merger reviews), impose heightened disclosures on oligopolists to facilitate monitoring, and seek to open up these markets to greater competition by lowering the regulatory, disclosure, and tax barriers to entry for small market participants. This approach may not satisfy those echoing politicians’ calls for mandatory divestments, but it is designed to recognize that high levels of market concentration heighten the potential danger of collusion and leveraging of market power by oligopolists.

Keywords: Anti-Trust Law, Competition Law

JEL Classification: K21, K20, K2,

Suggested Citation

Manns, Jeffrey David, The Case for Preemptive Oligopoly Regulation (August 2, 2020). Indiana Law Journal, Forthcoming, GWU Legal Studies Research Paper No. 2020-73, GWU Law School Public Law Research Paper No. 2020-73, Available at SSRN:

Jeffrey David Manns (Contact Author)

George Washington University Law School ( email )

2000 H Street, N.W.
Washington, DC 20052
United States

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Abstract Views
PlumX Metrics