Law Commons^™

Parallel Exclusion, C. Scott Hemphill, Tim Wu

Faculty Scholarship

Scholars and courts have long debated whether and when "parallel pricing" – adoption of the same price by every firm in a market – should be considered a violation of antitrust law. But there has been a comparative neglect of the importance of "parallel exclusion" – conduct, engaged in by multiple firms, that blocks or slows would-be market entrants. Parallel exclusion merits greater attention, for it can be far more harmful than parallel price elevation. Setting a high price leaves the field open for new entrants and may even attract them. In contrast, parallel action that excludes new entrants both …