Standard setting is typically, but not invariably procompetitive. ... Standard setting can also provide a forum for collusion, either tacit or explicit. For example, a competitor or group of competitors may attempt to select a standard designed to preclude the use or acceptance of another's product. ... Where competitors collude to keep a product, particularly an innovative product, from reaching the market competition is harmed. Consumers' choices have been circumscribed by horizontal activity, and the enforcement agencies should step in.