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The dynamics of patent citations

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  • Marco, Alan C.

Abstract

The use of patent citations as a measure of patent "quality" increased dramatically in recent years. I estimate the hazard of patent citation, and find evidence of unobserved heterogeneity. Hazard estimation provides a means to separate patent quality from citation "inflation."

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Bibliographic Info

Article provided by Elsevier in its journal Economics Letters.

Volume (Year): 94 (2007)
Issue (Month): 2 (February)
Pages: 290-296

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Handle: RePEc:eee:ecolet:v:94:y:2007:i:2:p:290-296

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References

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  1. Jaffe, Adam B & Trajtenberg, Manuel & Henderson, Rebecca, 1993. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 577-98, August.
  2. Hagedoorn, John & Cloodt, Myriam, 2003. "Measuring innovative performance: is there an advantage in using multiple indicators?," Research Policy, Elsevier, vol. 32(8), pages 1365-1379, September.
  3. Hall, B. & Jaffe, A. & Trajtenberg, M., 2001. "The NBER Patent Citations Data File: Lessons, Insights and Methodological Tools," Papers 2001-29, Tel Aviv.
  4. Marco, Alan, 2001. "The Option Value of Patent Litigation: Theory and Evidence," Vassar College Department of Economics Working Paper Series 52, Vassar College Department of Economics, revised Dec 2003.
  5. Enrico Moretti, 2004. "Workers' Education, Spillovers, and Productivity: Evidence from Plant-Level Production Functions," American Economic Review, American Economic Association, vol. 94(3), pages 656-690, June.
  6. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring.
  7. Lanjouw, Jean O & Schankerman, Mark, 2001. "Characteristics of Patent Litigation: A Window on Competition," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 129-51, Spring.
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Citations

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Cited by:
  1. Martinelli, Arianna, 2012. "An emerging paradigm or just another trajectory? Understanding the nature of technological changes using engineering heuristics in the telecommunications switching industry," Research Policy, Elsevier, vol. 41(2), pages 414-429.
  2. Cornelia Lawson, 2013. "Academic patenting: the importance of industry support," The Journal of Technology Transfer, Springer, vol. 38(4), pages 509-535, August.
  3. Aditi Mehta & Marc Rysman & Tim Simcoe, 2006. "Identifying the Age Profile of Patent Citations," Boston University - Department of Economics - Working Papers Series WP2006-022, Boston University - Department of Economics.
  4. Jan Van Hove, 2008. "The Impact of R&D Spillovers on Export Value: Does the Transmission Channel matter?," Working Papers 2008.3, International Network for Economic Research - INFER.
  5. Prud'homme, Dan, 2012. "How certain indigenous innovation and other patent policies hamper innovation in China," MPRA Paper 51710, University Library of Munich, Germany, revised Dec 2012.
  6. Patel, Darshak & Ward, Michael R., 2011. "Using patent citation patterns to infer innovation market competition," Research Policy, Elsevier, vol. 40(6), pages 886-894, July.
  7. Acosta, Manuel & Coronado, Daniel & Martínez, M. Ángeles, 2012. "Spatial differences in the quality of university patenting: Do regions matter?," Research Policy, Elsevier, vol. 41(4), pages 692-703.
  8. Sandner, Philipp G. & Block, Joern, 2011. "The market value of R&D, patents, and trademarks," Research Policy, Elsevier, vol. 40(7), pages 969-985, September.
  9. Blomkvist, Katarina & Kappen, Philip & Zander, Ivo, 2014. "Superstar inventors—Towards a people-centric perspective on the geography of technological renewal in the multinational corporation," Research Policy, Elsevier, vol. 43(4), pages 669-682.
  10. Wozniak, David, 2012. "Gender differences in a market with relative performance feedback: Professional tennis players," Journal of Economic Behavior & Organization, Elsevier, vol. 83(1), pages 158-171.
  11. Meissner Cornelia, 2011. "Academic Patenting: Opportunity, Support or Attitude?," Department of Economics and Statistics Cognetti de Martiis LEI & BRICK - Laboratory of Economics of Innovation "Franco Momigliano", Bureau of Research in Innovation, Complexity and Knowledge, Collegio 201107, University of Turin.
  12. Arianna Martinelli & Önder Nomaler, 2014. "Measuring knowledge persistence: a genetic approach to patent citation networks," Journal of Evolutionary Economics, Springer, vol. 24(3), pages 623-652, July.
  13. Prud'homme, Dan, 2012. "A statistical analysis of China's patent quality situation and larger innovation ecosystem," MPRA Paper 51619, University Library of Munich, Germany.
  14. Christian Ghiglino & Nicole Kuschy, 2010. "Are Patent Citations Driven by Quality?," Economics Discussion Papers 692, University of Essex, Department of Economics.
  15. Prud'homme, Dan, 2012. "Dulling the Cutting Edge: How Patent-Related Policies and Practices Hamper Innovation in China," MPRA Paper 43299, University Library of Munich, Germany, revised Dec 2012.

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