Consumer Welfare Standard

The Consumer Welfare Standard is the dominant analytical framework in American antitrust law, which evaluates business conduct and mergers solely by their effects on consumer prices and output. Developed by the Chicago School in the 1970s and most influentially articulated by Robert Bork in The Antitrust Paradox (1978), the standard holds that the only legitimate goal of antitrust is to maximize economic efficiency as measured by consumer surplus. Under this framework, conduct that lowers prices — even if it eliminates competitors, deepens platform dependency, or transfers governance power to a single firm — is presumptively lawful. The standard has been widely criticized by the Neo-Brandeisian movement and platform governance scholars for reducing antitrust to a price-calculus that cannot see structural harms, architectural control, or the foreclosure of future competition.

The Consumer Welfare Standard is not merely narrow. It is a deliberate simplification that converts antitrust from a structural safeguard into an efficiency audit, and in doing so it licenses the accumulation of power that no consumer price can measure.