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Innovation network
Acemoglu, Daron; Akcigit, Ufuk; Kerr, William R. - 2016
linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its …
Persistent link: https://www.econbiz.de/10011557905
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Global collaborative patents
Pekkala Kerr, Sari; Kerr, William R. - 2016
We study the prevalence and traits of global collaborative patents for U.S. public companies, where the inventor team … is located both within and outside of the United States. Collaborative patents are frequently observed when a corporation … is weak. We also connect collaborative patents to the ethnic composition of the firm's U.S. inventors and cross …
Persistent link: https://www.econbiz.de/10011561206
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Another brick in the wall? : technology leaders, patents, and the threat of market entry
Heger, Diana; Zaby, Alexandra - 2014
Technology leaders protecting a technological headstart with a patent are provided with a powerful legal measure to restrict market entry. We analyze the impact of knowledge spillover on the decision to patent and the effect of varying patent breadth on the threat of market entry. An empirical...
Persistent link: https://www.econbiz.de/10010439266
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Minimum Quality Standards and Novelty Requirements in a One-Short Development Race
Prokop, Jacek - 2011
We examine the timing and quality of product introduction in an R&D stopping game, where we allow for horizontal and vertical differentiation in the product market. We observe that discontinuous changes in introduction dates can occur as firms' abilities as researchers change. Further, when the...
Persistent link: https://www.econbiz.de/10013132086
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Borders and Distance in Knowledge Spillovers : Dying over Time or Dying with Age? - Evidence from Patent Citations
Li, Yao Amber - 2012
This paper uses a gravity framework to investigate the effects of distance as well as subnational and national borders in knowledge spillovers. Drawing on the NBER Patent Citations Database, we examine patent citations data at metropolitan level within the U.S. and the 38 largest patent-cited...
Persistent link: https://www.econbiz.de/10013117109
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Patents and Cumulative Innovation : Causal Evidence from the Courts
Galasso, Alberto - 2014
instruments. The effect is entirely driven by invalidation of patents owned by large patentees that triggers more follow …
Persistent link: https://www.econbiz.de/10013064199
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Quantity or Quality? Collaboration Strategies in Research and Development and Incentives to Patent
Hottenrott, Hanna - 2014
patenting, our results further suggest that knowledge creation alliances lead to patents that are filed to protect valuable …
Persistent link: https://www.econbiz.de/10013065765
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Intangible Knowledge Capital and Innovation in China
Fleisher, Belton M. - 2013
China's IKC generates patents in China, but fewer than in major industrialized economies. Among domestically owned …
Persistent link: https://www.econbiz.de/10013071740
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Global Collaborative Patents
Pekkala Kerr, Sari - 2017
We study the prevalence and traits of global collaborative patents for U.S. public companies, where the inventor team … is located both within and outside of the United States. Collaborative patents are frequently observed when a corporation … is weak. We also connect collaborative patents to the ethnic composition of the firm s U.S. inventors and cross …
Persistent link: https://www.econbiz.de/10012963434