1. Why Are Artists Poor?
2. Akerlof , George A. Kenneth J. Arrow Timothy F. Bresnahan James M. Buchanan Ronald H. Coase Linda R. Cohen Milton Friedman Jerry R. Green Robert W. Hahn Thomas W. Hazlett C. Scott Hemphill Robert E. Litan Roger G. Noll Richard Schmalensee Steven Shavell Hal R. Varian Hal R. Zeckhauser 2002
3. Measuring Knowledge Stocks;Bitzer;Kyklos,2005
4. The Case Against Intellectual Property;Boldrin;American Economic Review,2002