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Recognizing The Limits Of Antitrust: The Roberts Court Versus The Enforcement Agencies, Thomas A. Lambert, Alden F. Abbott

Thomas A. Lambert

As Judge Frank Easterbrook famously explained three decades ago, antitrust is an inherently limited body of law. In crafting and enforcing liability rules to combat market power and encourage competition, courts and regulators may err in two directions: they may wrongly forbid output-enhancing behavior or wrongly fail to condemn output-reducing conduct. The social losses from false convictions and false acquittals, taken together, comprise antitrust’s “error costs.” While it may be possible to reduce error costs by making liability rules more nuanced, added complexity raises the “decision costs” incurred by business planners (ex ante) and adjudicators (ex post …