For large parts of their history intellectual property law and antitrust law have worked so as to undermine innovation competition by protecting too much. Antitrust policy often reflected exaggerated fears of competitive harm, and responded by developing overly protective rules that shielded inefficient businesses from competition at the expense of consumers. By the same token, the IP laws have often undermined rather than promoted innovation by granting IP holders rights far beyond what is necessary to create appropriate incentives to innovate. Perhaps the biggest intellectual change in recent decades is that we have come to see patents less as a species of monopoly and more as a kind of property. While a good development overall, this mak...