Document Type

Article

Publication Title

Vanderbilt Law Review

Publication Date

2016

Page Number

1

Keywords

antitrust, commensurability, value judgments

Disciplines

Antitrust and Trade Regulation | Law

Abstract

Modern antitrust law pursues a seemingly unitary goal: competition. In fact, competition—whether defined as a process or as a set of outcomes associated with competitive markets—is multifaceted. What are offered in antitrust cases as procompetitive and anticompetitive effects are typically qualitatively different, and trading them off is as much an exercise in judgment as mathematics. But despite the inevitability of value judgments in antitrust cases, courts have perpetuated a commensurability myth, claiming to evaluate “net” competitive effect as if the pros and cons of a restraint of trade are in the same unit of measure. The myth is attractive to courts because it appears to allow the law to avoid the murky, value-laden compromises struck by other areas of regulation. But courts have suppressed important debates about what matters most about competition by glossing over the fact that even given a narrow mandate—to protect competition—antitrust law must make contested value judgments. Debunking the commensurability myth is the first step in stimulating scholarly and judicial debates about how to balance antitrust’s inherent tradeoffs, such as price effects with qualitative consumer welfare, present with future benefits from competition, and consumer welfare among different classes of purchasers.

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