Technological Diversity and Jacobs' Externality Hypothesis Revisited
Recent empirical evidence strongly supports Jacobs's (1969) externality hypothesis that urban diversity provides a more favorable environment for economic development than urban specialization. In order to correctly gauge Jacobs's hypothesis, economic development should be understood as a result of innovations. Furthermore, a relevant diversity measure should take into account the degree of diversity of the inherent classes (e.g. pharmaceuticals are closer to chemicals than to forestry). These ideas are tested using regionally classified Swedish patent application data as a measure of innovativeness. Patent data are also used to reflect technological diversity. The results show that the number of patent applications in Swedish regions is highly and positively dependent on regional technological specialization, quite the opposite of Jacobs's prediction. This paper raises general questions about earlier empirical results. It is concluded that the size of regions is an important factor to consider, since this in itself may affect patenting intensity and technological diversity. Copyright 2005 Blackwell Publishing Ltd..
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Volume (Year): 36 (2005)
Issue (Month): 2 ()
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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Zvi Griliches, 1998.
"Patent Statistics as Economic Indicators: A Survey,"
in: R&D and Productivity: The Econometric Evidence, pages 287-343
National Bureau of Economic Research, Inc.
- Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
- Zvi Griliches, 1990. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
- Teece, David J. & Rumelt, Richard & Dosi, Giovanni & Winter, Sidney, 1994. "Understanding corporate coherence : Theory and evidence," Journal of Economic Behavior & Organization, Elsevier, vol. 23(1), pages 1-30, January.
- 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.
- 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.
- Glaeser, Edward Ludwig & Kallal, Hedi D. & Scheinkman, Jose A. & Shleifer, Andrei, 1992.
"Growth in Cities,"
3451309, Harvard University Department of Economics.
- Corinne Autant-Bernard, 2001. "The Geography Of Knowledge Spillovers And Technological Proximity," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 10(4), pages 237-254.
- Richard C. Levin & Alvin K. Klevorick & Richard R. Nelson & Sidney G. Winter, 1988. "Appropriating the Returns from Industrial R&D," Cowles Foundation Discussion Papers 862, Cowles Foundation for Research in Economics, Yale University.
- R. Paci & S. Usai, 2000.
"Externalities, knowledge spillovers and the spatial distribution of innovation,"
Working Paper CRENoS
200002, Centre for North South Economic Research, University of Cagliari and Sassari, Sardinia.
- Paci, Raffaele & Usai, Stefano, 2000. "Externalities, Knowledge Spillovers And The Spatial Distribution Of Innovation," ERSA conference papers ersa00p104, European Regional Science Association.
- John M. Quigley, 1998. "Urban Diversity and Economic Growth," Journal of Economic Perspectives, American Economic Association, vol. 12(2), pages 127-138, Spring.
- Kelly, Morgan & Hageman, Anya, 1999. "Marshallian Externalities in Innovation," Journal of Economic Growth, Springer, vol. 4(1), pages 39-54, March.
- J. Vernon Henderson & Ari Kuncoro & Matthew Turner, 1992.
"Industrial Development in Cities,"
NBER Working Papers
4178, National Bureau of Economic Research, Inc.
- Gilles Duranton & Diego Puga, 2000.
"Nursery cities: urban diversity, process innovation and the life-cycle of products,"
LSE Research Online Documents on Economics
20204, London School of Economics and Political Science, LSE Library.
- Gilles Duranton & Diego Puga, 2001. "Nursery Cities: Urban Diversity, Process Innovation, and the Life Cycle of Products," American Economic Review, American Economic Association, vol. 91(5), pages 1454-1477, December.
- Gilles Duranton & Diego Puga, 2000. "Nursery Cities: Urban diversity, process innovation, and the life-cycle of products," Working Papers dpuga-00-01, University of Toronto, Department of Economics.
- Gilles Duranton & Diego Puga, 2000. "Nursery Cities: Urban Diversity, Process Innovation and the Life-Cycle of Products," CEP Discussion Papers dp0445, Centre for Economic Performance, LSE.
- Duranton, Gilles & Puga, Diego, 2000. "Nursery Cities: Urban Diversity, Process Innovation, and the Life-Cycle of Products," CEPR Discussion Papers 2376, C.E.P.R. Discussion Papers.
- repec:fth:harver:1473 is not listed on IDEAS
- Henderson, J V, 1974.
"The Sizes and Types of Cities,"
American Economic Review,
American Economic Association, vol. 64(4), pages 640-656, September.
- Jerry A. Hausman & Bronwyn H. Hall & Zvi Griliches, 1984.
"Econometric Models for Count Data with an Application to the Patents-R&D Relationship,"
NBER Technical Working Papers
0017, National Bureau of Economic Research, Inc.
- Hausman, Jerry & Hall, Bronwyn H & Griliches, Zvi, 1984. "Econometric Models for Count Data with an Application to the Patents-R&D Relationship," Econometrica, Econometric Society, vol. 52(4), pages 909-938, July.
- Jaffe, Adam B, 1986.
"Technological Opportunity and Spillovers of R&D: Evidence from Firms' Patents, Profits, and Market Value,"
American Economic Review,
American Economic Association, vol. 76(5), pages 984-1001, December.
- Adam B. Jaffe, 1986. "Technological Opportunity and Spillovers of R&D: Evidence from Firms' Patents, Profits and Market Value," NBER Working Papers 1815, National Bureau of Economic Research, Inc.
- Maryellen Kelley & Susan Helper, 1999. "Firm Size And Capabilities, Regional Agglomeration, And The Adoption Of New Technology," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 8(1-2), pages 79-103.
- 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.
- Audretsch, David B & Feldman, Maryann P, 1998. "Innovation in Cities: Science-Based Diversity, Specialization and Localized Competition," CEPR Discussion Papers 1980, C.E.P.R. Discussion Papers.
- Dixit, Avinash K & Stiglitz, Joseph E, 1975.
"Monopolistic Competition and Optimum Product Diversity,"
The Warwick Economics Research Paper Series (TWERPS)
64, University of Warwick, Department of Economics.
- Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
- Malerba, Franco & Orsenigo, Luigi, 1995. "Schumpeterian Patterns of Innovation," Cambridge Journal of Economics, Oxford University Press, vol. 19(1), pages 47-65, February.
- Alfred Kleinknecht & Kees Van Montfort & Erik Brouwer, 2002. "The Non-Trivial Choice between Innovation Indicators," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 11(2), pages 109-121.
- Breschi, Stefano & Malerba, Franco & Orsenigo, Luigi, 2000. "Technological Regimes and Schumpeterian Patterns of Innovation," Economic Journal, Royal Economic Society, vol. 110(463), pages 388-410, April.
- Bart Verspagen, 1997. "Measuring Intersectoral Technology Spillovers: Estimates from the European and US Patent Office Databases," Economic Systems Research, Taylor & Francis Journals, vol. 9(1), pages 47-65.
- Zoltan J. Acs & Felix R. FitzRoy & Ian Smith, 1999.
"High-Technology Employment and R&D in Cities: Heterogeneity vs Specialization,"
CRIEFF Discussion Papers
9920, Centre for Research into Industry, Enterprise, Finance and the Firm.
- Ian Smith & Zoltan J. Acs & Felix R. FitzRoy, 2002. "High-technology employment and R&D in cities: Heterogeneity vs specialization," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 36(3), pages 373-386.
- Acs, Zoltan J. & Anselin, Luc & Varga, Attila, 2002. "Patents and innovation counts as measures of regional production of new knowledge," Research Policy, Elsevier, vol. 31(7), pages 1069-1085, September.
- Michael Spence, 1976. "Product Selection, Fixed Costs, and Monopolistic Competition," Review of Economic Studies, Oxford University Press, vol. 43(2), pages 217-235.
- S Pinch & N Henry, 1999. "Discursive Aspects of Technological Innovation: The Case of the British Motor-Sport Industry," Environment and Planning A, SAGE Publishing, vol. 31(4), pages 665-682, April.
- Scherer, F. M., 1983. "The propensity to patent," International Journal of Industrial Organization, Elsevier, vol. 1(1), pages 107-128, March.
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