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Limit theorems for estimating the parameters of differentiated product demand systems
Berry, Steve; Linton, Oliver; Pakes, Ariel - London School of Economics (LSE) - 2000
We provide an asymptotic distribution theory for a class of Generalized Method of Moments estimators that arise in the study of differentiated product markets when the number of observations is associated with the number of products within a given market. We allow for three sources of error: the...
Persistent link: https://www.econbiz.de/10010745114
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International spillovers and absorptive capacity: a cross-country, cross-sector analysis based on European patents and citations
Mancusi, Maria Luisa - London School of Economics (LSE) - 2004
innovation at a finely defined sectoral level for six major industrialised countries over the period 1981-1995. International … (absorptive capacity). The empirical results show that absorptive capacity increases the elasticity of a country¿s innovation to …
Persistent link: https://www.econbiz.de/10011071485
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Strategic patenting and software innovation
Noel, Michael; Schankerman, Mark - London School of Economics (LSE) - 2006
cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer … software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and … the fragmentation of patent rights (.patent thickets.) which increases the transaction costs of enforcement. We develop a …
Persistent link: https://www.econbiz.de/10010744919
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Incentives and invention in universities
Lach, Saul; Schankerman, Mark - London School of Economics (LSE) - 2007
Using data on U.S. universities, we show that universities that give higher royalty shares to faculty scientists generate greater license income, controlling for university size, academic quality, research funding and other factors. We use pre-sample data on university patenting to control for...
Persistent link: https://www.econbiz.de/10010745860
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Patent thickets and the market for innovation: evidence from settlement of patent disputes
Galasso, Alberto; Schankerman, Mark - London School of Economics (LSE) - 2008
We study how fragmentation of patent rights (‘patent thickets’) and the formation of the Court of Appeal for the … Federal Circuit (CAFC) affected the duration of patent disputes, and thus the speed of technology diffusion through licensing …. We develop a model of patent litigation which predicts faster settlement agreements when patent rights are fragmented and …
Persistent link: https://www.econbiz.de/10010746238
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Strategic patenting and software innovation
Noel, Michael; Schankerman, Mark - London School of Economics (LSE) - 2006
cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer … software industry. We focus on two key aspects: patent portfolio size which affects bargaining power in patent disputes, and … the fragmentation of patent rights (.patent thickets.) which increases the transaction costs of enforcement. We develop a …
Persistent link: https://www.econbiz.de/10010746431
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Patents and the global diffusion of new drugs
Cockburn, Iain; Lanjouw, Jean O.; Schankerman, Mark - London School of Economics (LSE) - 2014
This paper studies how patent rights and price regulation affect how fast new drugs are launched in different countries … duration and content of patent and price control regimes. Price regulation strongly delays launch, while longer and more … extensive patent protection accelerates it. Health policy institutions, and economic and demographic factors that make markets …
Persistent link: https://www.econbiz.de/10011126137
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Incentives and invention in universities
Lach, Saul; Schankerman, Mark - London School of Economics (LSE) - 2004
Persistent link: https://www.econbiz.de/10010884513
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Technological innovation and economic performance in the United Kingdom
Nickell, S. J.; Van Reenen, John - London School of Economics (LSE) - 2001
due to a weakness in technological innovation despite a high quality science base. This includes comparatively low and …
Persistent link: https://www.econbiz.de/10010745223
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How does innovation affect worker well-being?
Bryson, Alex; Dale-Olsen, Harald; Barth, Erling - London School of Economics (LSE) - 2009
effect which becomes more pronounced when we account for the endogeneity of innovation. This is the case for three different … count measures of innovation – a global measure of innovation and measures for labour innovations and capital innovations …
Persistent link: https://www.econbiz.de/10010745414