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Strategic patenting and software innovation
Noel, Michael; Schankerman, Mark - London School of Economics (LSE) - 2006
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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Research productivity and patent quality: measurement with multiple indicators
Olson Lanjouw, Jean; Schankerman, Mark - London School of Economics (LSE) - 2002
technological exhaustion. We first develop an index of patent ‘quality’ using detailed information on patents in the U.S. in seven …We analyse the determinants of the decline in measured research productivity (the patent/R&D ratio) using panel data on … manufacturing firms in the U.S. for the period 1980-93. We focus on three factors: the level of demand, the quality of patents, and …
Persistent link: https://www.econbiz.de/10010746047
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Strategic patenting and software innovation
Noel, Michael; Schankerman, Mark - London School of Economics (LSE) - 2006
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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Identifying technology spillovers and product market rivalry
Bloom, Nick; Schankerman, Mark; Van Reenen, John - London School of Economics (LSE) - 2005
Government policies to support R&D are predicated on empirical evidence of R&D "spillovers" between firms. But there are two countervailing R&D spillovers: positive effects from technology spillovers and negative effects from business stealing by product market rivals. We develop a general...
Persistent link: https://www.econbiz.de/10011125934
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Identifying technology spillovers and product market rivalry
Bloom, Nick; Schankerman, Mark; Van Reenen, John - London School of Economics (LSE) - 2013
The impact of R&D on growth through spillovers has been a major topic of economic research over the last thirty years. A central problem in the literature is that firm performance is affected by two countervailing "spillovers" : a positive effect from technology (knowledge) spillovers and a...
Persistent link: https://www.econbiz.de/10011126004
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Identifying technology spillovers and product market rivalry
Bloom, Nick; Schankerman, Mark; Van Reenen, John - London School of Economics (LSE) - 2005
Support for many R&D and technology policies relies on empirical evidence that R&D ‘spills over’ between firms. But there are two countervailing R&D spillovers: positive effects from technology spillovers and negative effects from business stealing by product market rivals. We develop a...
Persistent link: https://www.econbiz.de/10011126438
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Knowledge flow and sequential innovation: implications for technology diffusion, r&d and market value
Belenzon, Sharon - London School of Economics (LSE) - 2006
identify unique patterns of knowledge flows (based on patent citations), which provide information about whether “spilled …
Persistent link: https://www.econbiz.de/10011071120
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Identifying technology spillovers and product market rivalry
Bloom, Nick; Schankerman, Mark; Van Reenen, John - London School of Economics (LSE) - 2005
Support for many R&D and technology policies relies on empirical evidence that R&D “spills over” between firms. But there are two countervailing R&D spillovers: positive effects from technology spillovers and negative effects from business stealing by product market rivals. We develop a...
Persistent link: https://www.econbiz.de/10011071197
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The impact of private ownership, incentives and local development objectives on university technology transfer performance
Belenzon, Sharon; Schankerman, Mark - London School of Economics (LSE) - 2007
We study the impact of private ownership, incentive pay and local development objectives on university licensing performance. We develop and test a simple contracting model of technology licensing offices, using new survey information together with panel data on U.S. universities for 1995-99. We...
Persistent link: https://www.econbiz.de/10010744928
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Motivation and sorting in open source software innovation
Belenzon, Sharon; Schankerman, Mark - London School of Economics (LSE) - 2008
This paper studies the role of intrinsic motivation, reputation, and reciprocity in driving open source software innovation. Unlike previous literature based on survey data, we exploit the observed pattern of contributions - the .revealed preference. of developers - to infer the underlying...
Persistent link: https://www.econbiz.de/10010745268