1. An event-study approach to measuring innovative output: the case of biotechnology;Austin;The American Economic Review Papers and Proceedings,1993
2. Contestable Markets and the Theory of Industry Structure;Baumal,1982
3. Measuring knowledge stocks: a process of creative destruction;Bitzer;Kyklos,2005
4. On persistence in mutual fund performance;Carhart;Journal of Finance,1997
5. Industry effects and appropriability measures in the stock market's valuation of R&D and patents;Cockburn;American Economic Review Papers and Proceedings,1988