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Localized knowledge spillovers and patent citations: A distance-based approach

  • Yasusada Murata
  • Ryo Nakajima
  • Ryosuke Okamoto
  • Ryuichi Tamura

We develop a new approach to localized knowledge spillovers by incorporating the concept of control patents (Jaffe, Trajtenberg and Henderson 1993) into the distance-based test of localization (Duranton and Overman, 2005). Using microgeographic data, we identify localization distance while allowing for cross-boundary spillovers, unlike the existing literature where the extent of localized knowledge spillovers is detected at the state or metropolitan statistical area level. We revisit the recent debate by Thompson and Fox-Kean (2005) and Henderson, Jaffe and Trajtenberg (2005) on the existence of localized knowledge spillovers, and find solid evidence supporting localization, even when finer controls are used.

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File URL: http://www.econ.tsukuba.ac.jp/RePEc/2010-010.pdf
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Paper provided by Economics, Graduate School of Humanities and Social Sciences, University of Tsukuba in its series Tsukuba Economics Working Papers with number 2010-010.

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Date of creation: Jan 2011
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Handle: RePEc:tsu:tewpjp:2010-010
Contact details of provider: Postal: 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571
Web page: http://www.econ.tsukuba.ac.jp/

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  1. William R. Kerr & Scott Duke Kominers, 2010. "Agglomerative Forces and Cluster Shapes," Harvard Business School Working Papers 11-061, Harvard Business School, revised Nov 2012.
  2. Desmet, Klaus & Rossi-Hansberg, Esteban, 2009. "Spatial Development," CEPR Discussion Papers 7479, C.E.P.R. Discussion Papers.
  3. Agrawal, Ajay & Cockburn, Iain & Rosell, Carlos, 2010. "Not Invented Here? Innovation in company towns," Journal of Urban Economics, Elsevier, vol. 67(1), pages 78-89, January.
  4. Peter Thompson, 2004. "Patent Citations and the Geography of Knowledge Spillovers: Evidence from Inventor- and Examiner-Added Citations," Working Papers 0405, Florida International University, Department of Economics, revised Jun 2005.
  5. Agrawal, Ajay & Kapur, Devesh & McHale, John, 2008. "How do spatial and social proximity influence knowledge flows? Evidence from patent data," Journal of Urban Economics, Elsevier, vol. 64(2), pages 258-269, September.
  6. Duranton, Gilles & Martin, Philippe & Mayer, Thierry & Mayneris, Florian, 2010. "The Economics of Clusters: Lessons from the French Experience," OUP Catalogue, Oxford University Press, number 9780199592203, March.
  7. Ryo Nakajima & Ryuichi Tamura & Nobuyuki Hanaki, 2009. "The Effect of Collaboration Network on Inventors' Job Match, Productivity and Tenure," Tsukuba Economics Working Papers 2009-001, Economics, Graduate School of Humanities and Social Sciences, University of Tsukuba.
  8. Joseph G. Altonji & Todd E. Elder & Christopher R. Taber, 2000. "Selection on Observed and Unobserved Variables: Assessing the Effectiveness of Catholic Schools," NBER Working Papers 7831, National Bureau of Economic Research, Inc.
  9. Peter Thompson & Melanie Fox Kean, 2004. "Patent Citations and the Geography of Knowledge Spillovers: A Reassessment," Working Papers 0401, Florida International University, Department of Economics.
  10. Pierre-Philippe Combes & Gilles Duranton, 2001. "Labor Pooling, Labor Poaching and Spatial Clustering," CEP Discussion Papers dp0510, Centre for Economic Performance, LSE.
  11. Glenn Ellison & Edward L. Glaeser & William R. Kerr, 2007. "What Causes Industry Agglomeration? Evidence from Coagglomeration Patterns," Harvard Business School Working Papers 07-064, Harvard Business School.
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