References
- Archibugi , D. and Pianta , M. 1992 . Specialization and size of technological activities in industrial countries: The analysis of patent data . Research Policy , 21 : 79 – 93 .
- Coppitters , A. , Jonnaert , E. and Vermeesch , P. 1987 . Octrooien , 185 Antwerpen : Kluwer Rechtswetenschappen .
- Desai , M. and Low , W. 1987 . “ Measuring the Opportunity for Product Innovation ” . In Changing Money , Edited by: De Cecco , E. Oxford : Blackwell .
- European Patent Office . 1989 . Annual Report 1988 , Münich : EPO .
- Hausman , J.A. and Mackie-Mason , J.K. 1988 . Price discrimination and Patent Policy . Rand Journal of Economics , 19 : 253 – 265 .
- Ireland , N. 1987 . Product Differentiation and Non-Price Competition , Oxford : Blackwell .
- Jepma , C.J. 1986 . Extensions and application possibilities of the constant-market-share analysis: the case of the developing countries' exports Groningen
- Leamer , E. and Stern , R. 1970 . Quantitative International Economics , Boston : Allyn and Bacon Inc. .
- Pakes , A. 1986 . Patents as Options: Some Estimates of the Value of Holding European Patent Stocks . Econometrica , 54 : 775 – 784 .
- Richardson , J. 1971 . Constant-Market-Shares analysis of export growth . Journal of International Economics , 1 : 227 – 239 .
- Van Cayseele , P. 1989 . On the Design of Patents for New Pharmaceuticals . European Journal of Political Economy , 5 : 49 – 61 .
- World Intellectual Property Organization (1977) Industrial Property Statistics 1975, Geneva: WIPO.
- World Intellectual Property Organization (1978) Industrial Property Statistics 1976, Geneva: WIPO.
- World Intellectual Property Organization (1989) Industrial Property Statistics 1987, publication B, Geneva: WIPO.