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software product. The estimation results also confirm the importance of network effects. Code compatibility, i.e. the …
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Patent renewal studies reveal a highly rightward-skewed distribution of patent values. Our approach elicits valuations approximating those of the patented invention. This paper focuses on the full-term patents of the application year 1977 held by West German and U.S. residents. The tail of...
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We explore the tail of patented invention value distributions by using value estimates obtained directly from patent holders. The paper focuses on those full-term German patents of the application year 1977 which were held by West German and U.S. residents. The most valuable patents in our data...
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This paper uses a new firm panel data set to explore the relationship between R&D and productivity in German … productivity growth. In the cross-section, the elasticity of sales with respect to R&D capital is on the order of 14 per cent …
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We investigate the causal effect of patent rights on cumulative innovation, using large-scale data that approximate the patent universe in its technological and economic variety. We introduce a novel instrumental variable for patent invalidation that exploits personnel scarcity in post-grant...
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