1. Intellectual Property: When Is It the Best Incentive System?;Nancy Gallini;INNOVATION POLICY AND THE ECONOMY,2002
2. Economic Welfare and the Allocation of Resources for Invention;See Kenneth Arrow;THE RATE AND DIRECTION OF INVENTIVE ACTIVITY: ECONOMIC AND SOCIAL FACTORS,1962
3. at 623; F. Scott Kieff, Property Rights and Property Rules for Commercializing Inventions, 85 MINN;Id;L. REV,2001