Abbott on the Apple e-books case: Apple v. United States and antitrust error cost analysis

As Judge (and Professor) Frank Easterbrook famously explained over three decades ago (in his seminal article The Limits of Antitrust), 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). In light of all these costs, Easterbrook advocated an approach that would optimize antitrust’s effectiveness: interpret and enforce the antitrust laws so as to minimize the sum of error and decision costs.

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