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Urban density and the rate of invention

Listed author(s):
  • Carlino, Gerald A.
  • Chatterjee, Satyajit
  • Hunt, Robert M.

Economists, beginning with Alfred Marshall, have studied the significance of cities in the production and exploitation of information externalities that, today, we call knowledge spillovers. This paper presents robust evidence of those effects. We show that patent intensity—the per capita invention rate—is positively related to the density of employment in the highly urbanized portion of MAs. All else equal, a city with twice the employment density (jobs per square mile) of another city will exhibit a patent intensity (patents per capita) that is 20 percent higher. Patent intensity is maximized at an employment density of about 2,200 jobs per square mile. A city with a more competitive market structure or one that is not too large (a population less than 1 million) will also have a higher patent intensity. These findings confirm the widely held view that the nation’s densest locations play an important role in creating the flow of ideas that generate innovation and growth. ; Supersedes Working Paper No. 04-16

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Article provided by Elsevier in its journal Journal of Urban Economics.

Volume (Year): 61 (2007)
Issue (Month): 3 (May)
Pages: 389-419

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Handle: RePEc:eee:juecon:v:61:y:2007:i:3:p:389-419
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/622905

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  1. Romer, Paul M, 1986. "Increasing Returns and Long-run Growth," Journal of Political Economy, University of Chicago Press, vol. 94(5), pages 1002-1037, October.
  2. Gerald A. Carlino & Satyajit Chatterjee & Robert M. Hunt, 2001. "Knowledge spillovers and the new economy of cities," Working Papers 01-14, Federal Reserve Bank of Philadelphia.
  3. Andersson, Roland & John M. Quigley, John M. & Wilhelmsson, Mats, 2005. "Higher Education, Localization and Innovation: Evidence from a Natural Experiment," Working Paper Series in Economics and Institutions of Innovation 26, Royal Institute of Technology, CESIS - Centre of Excellence for Science and Innovation Studies.
  4. Feldman, Maryann P. & Audretsch, David B., 1999. "Innovation in cities:: Science-based diversity, specialization and localized competition," European Economic Review, Elsevier, vol. 43(2), pages 409-429, February.
  5. Marcus Berliant & Robert R. Reed III & Ping Wang, 2005. "Knowledge Exchange, Matching, and Agglomeration," Urban/Regional 0506013, EconWPA, revised 07 Jul 2005.
  6. Norman Sedgley & Bruce Elmslie, 2004. "The Geographic Concentration of Knowledge: Scale, Agglomeration, and Congestion in Innovation Across U.S. States," International Regional Science Review, , vol. 27(2), pages 111-137, April.
  7. Duranton, Gilles & Puga, Diego, 2003. "Microfoundations of Urban Agglomeration Economies," CEPR Discussion Papers 4062, C.E.P.R. Discussion Papers.
  8. Jaffe, A.B. & Trajtenberg, M., 1992. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," Papers 14-92, Tel Aviv.
  9. Wolfgang Keller, 2000. "Geographic Localization of International Technology Diffusion," NBER Working Papers 7509, National Bureau of Economic Research, Inc.
  10. Boyan Jovanovic & Rafael Rob, 1989. "The Growth and Diffusion of Knowledge," Review of Economic Studies, Oxford University Press, vol. 56(4), pages 569-582.
  11. Bronwyn H. Hall & Adam B. Jaffe & Manuel Trajtenberg, 2001. "The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools," NBER Working Papers 8498, National Bureau of Economic Research, Inc.
  12. Fosfuri, Andrea & Ronde, Thomas, 2004. "High-tech clusters, technology spillovers, and trade secret laws," International Journal of Industrial Organization, Elsevier, vol. 22(1), pages 45-65, January.
  13. McGranahan, David A., 1999. "Natural Amenities Drive Rural Population Change," Agricultural Economics Reports 33955, United States Department of Agriculture, Economic Research Service.
  14. repec:fth:harver:1473 is not listed on IDEAS
  15. Henderson, Vernon & Kuncoro, Ari & Turner, Matt, 1995. "Industrial Development in Cities," Journal of Political Economy, University of Chicago Press, vol. 103(5), pages 1067-1090, October.
  16. Rosenthal, Stuart S. & Strange, William C., 2001. "The Determinants of Agglomeration," Journal of Urban Economics, Elsevier, vol. 50(2), pages 191-229, September.
  17. Eberts, Randall W. & McMillen, Daniel P., 1999. "Agglomeration economies and urban public infrastructure," Handbook of Regional and Urban Economics, in: P. C. Cheshire & E. S. Mills (ed.), Handbook of Regional and Urban Economics, edition 1, volume 3, chapter 38, pages 1455-1495 Elsevier.
  18. Gerald A. Carlino, 2001. "Knowledge spillovers: cities' role in the new economy," Business Review, Federal Reserve Bank of Philadelphia, issue Q4, pages 17-26.
  19. Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
  20. Audretsch, David B & Feldman, Maryann P, 1996. "R&D Spillovers and the Geography of Innovation and Production," American Economic Review, American Economic Association, vol. 86(3), pages 630-640, June.
  21. Wheeler, Christopher H, 2001. "Search, Sorting, and Urban Agglomeration," Journal of Labor Economics, University of Chicago Press, vol. 19(4), pages 879-899, October.
  22. Anselin, Luc & Varga, Attila & Acs, Zoltan, 1997. "Local Geographic Spillovers between University Research and High Technology Innovations," Journal of Urban Economics, Elsevier, vol. 42(3), pages 422-448, November.
  23. Antonio Ciccone & Robert E. Hall, 1995. "Productivity and the density of economic activity," Economics Working Papers 120, Department of Economics and Business, Universitat Pompeu Fabra.
  24. Jaffe, Adam B, 1989. "Real Effects of Academic Research," American Economic Review, American Economic Association, vol. 79(5), pages 957-970, December.
  25. Audretsch, David B. & Feldman, Maryann P., 2004. "Knowledge spillovers and the geography of innovation," Handbook of Regional and Urban Economics, in: J. V. Henderson & J. F. Thisse (ed.), Handbook of Regional and Urban Economics, edition 1, volume 4, chapter 61, pages 2713-2739 Elsevier.
  26. Glaeser, Edward L & Hedi D. Kallal & Jose A. Scheinkman & Andrei Shleifer, 1992. "Growth in Cities," Journal of Political Economy, University of Chicago Press, vol. 100(6), pages 1126-1152, December.
    • Edward L. Glaeser & Hedi D. Kallal & Jose A. Scheinkman & Andrei Shleifer, 1991. "Growth in Cities," NBER Working Papers 3787, National Bureau of Economic Research, Inc.
    • Glaeser, Edward Ludwig & Kallal, Hedi D. & Scheinkman, Jose A. & Shleifer, Andrei, 1992. "Growth in Cities," Scholarly Articles 3451309, Harvard University Department of Economics.
  27. Wesley M Cohen & Richard R Nelson & John P Walsh, 2003. "Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (Or Not)," Levine's Working Paper Archive 618897000000000624, David K. Levine.
  28. Helsley, Robert W. & Strange, William C., 2002. "Innovation and Input Sharing," Journal of Urban Economics, Elsevier, vol. 51(1), pages 25-45, January.
  29. Mohammad Arzaghi & J. Vernon Henderson, 2008. "Networking off Madison Avenue," Review of Economic Studies, Oxford University Press, vol. 75(4), pages 1011-1038.
  30. Rosenthal, Stuart S. & Strange, William C., 2004. "Evidence on the nature and sources of agglomeration economies," Handbook of Regional and Urban Economics, in: J. V. Henderson & J. F. Thisse (ed.), Handbook of Regional and Urban Economics, edition 1, volume 4, chapter 49, pages 2119-2171 Elsevier.
  31. Marshall, Alfred, 1890. "The Principles of Economics," History of Economic Thought Books, McMaster University Archive for the History of Economic Thought, number marshall1890.
  32. Jordan Rappaport, 2004. "Moving to Nice Weather," Econometric Society 2004 North American Summer Meetings 188, Econometric Society.
  33. Anselin, Luc, 1990. "Some robust approaches to testing and estimation in spatial econometrics," Regional Science and Urban Economics, Elsevier, vol. 20(2), pages 141-163, September.
  34. Edward L. Glaeser & Matthew E. Kahn, 2001. "Decentralized Employment and the Transformation of the American City," NBER Working Papers 8117, National Bureau of Economic Research, Inc.
  35. Pamela D. Morrison & John H. Roberts & Eric von Hippel, 2000. "Determinants of User Innovation and Innovation Sharing in a Local Market," Management Science, INFORMS, vol. 46(12), pages 1513-1527, December.
  36. Helsley, Robert W. & Strange, William C., 2004. "Knowledge barter in cities," Journal of Urban Economics, Elsevier, vol. 56(2), pages 327-345, September.
  37. Andersson, Fredrik & Burgess, Simon & Lane, Julia, 2004. "Cities, Matching and the Productivity Gains of Agglomeration," CEPR Discussion Papers 4598, C.E.P.R. Discussion Papers.
  38. No authors listed, 2001. "New Economy," Wirtschaft und Gesellschaft - WuG, Kammer für Arbeiter und Angestellte für Wien, Abteilung Wirtschaftswissenschaft und Statistik, vol. 27(1), pages 1-1.
  39. Anselin, Luc & Hudak, Sheri, 1992. "Spatial econometrics in practice : A review of software options," Regional Science and Urban Economics, Elsevier, vol. 22(3), pages 509-536, September.
  40. Agrawal, Ajay & Cockburn, Iain, 2003. "The anchor tenant hypothesis: exploring the role of large, local, R&D-intensive firms in regional innovation systems," International Journal of Industrial Organization, Elsevier, vol. 21(9), pages 1227-1253, November.
  41. Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
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