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The Role of Specialisation and Diversity Externalities in the Agglomeration of Innovative Activities

  • Paci Raffaele
  • Usai Stefano

This paper contributes to the analysis of the process of spatial agglomeration of innovative activities by investigating directly its determinants. Our main purpose is to identify the extent to which the degree of industrial specialisation or diversity in a region may affect the innovative output in a particular local industry. Moreover, we test if any relevant difference arises with respect to the role of diversity in metropolitan areas and in high-tech sectors. The analysis was carried out thanks to an original databank on innovation and production across Italian local labour systems (see http://www.crenos.unica.it). According to the estimation results there are clear signs of the two types of externalities working simultaneously: Marshall externalities (or localisation economies), associated to industrial specialisation within the sector and also within the science base cluster; and Jacobs externalities (or urbanisation economies), associated to the degree of diversity of both the local districts and the science base cluster. Moreover, industrial diversity in the local system plays a different role depending on the dimension of the local system (whether it is a metropolitan area or not) and on the type of industry (high vs. low tech sectors).

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Article provided by Società editrice il Mulino in its journal Rivista italiana degli economisti.

Volume (Year): (2000)
Issue (Month): 2 ()
Pages: 237-268

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Handle: RePEc:mul:jqat1f:doi:10.1427/3676:y:2000:i:2:p:237-268
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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. 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.
  3. repec:fth:harver:1473 is not listed on IDEAS
  4. Stefano Breschi, 2000. "The Geography of Innovation: A Cross-sector Analysis," Regional Studies, Taylor & Francis Journals, vol. 34(3), pages 213-229.
  5. Roberta Capello, 1999. "Spatial Transfer of Knowledge in High Technology Milieux: Learning Versus Collective Learning Processes," Regional Studies, Taylor & Francis Journals, vol. 33(4), pages 353-365.
  6. Kelly, Morgan & Hageman, Anya, 1999. " Marshallian Externalities in Innovation," Journal of Economic Growth, Springer, vol. 4(1), pages 39-54, March.
  7. R. Paci & S. Usai, 1997. "Technological enclaves and industrial districts. An analysis of the regional distributions of innovative activity in Europe," Working Paper CRENoS 199708, Centre for North South Economic Research, University of Cagliari and Sassari, Sardinia.
  8. Zvi Griliches, 1990. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
  9. Edward L. Glaeser & Glenn Ellison, 1999. "The Geographic Concentration of Industry: Does Natural Advantage Explain Agglomeration?," American Economic Review, American Economic Association, vol. 89(2), pages 311-316, May.
  10. Ottaviano, Gianmarco & Puga, Diego, 1997. "Agglomeration in the Global Economy: A Survey of the 'New Economic Geography'," CEPR Discussion Papers 1699, C.E.P.R. Discussion Papers.
  11. 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.
  12. Bartelsman, Eric J & Caballero, Ricardo J & Lyons, Richard K, 1994. "Customer- and Supplier-Driven Externalities," American Economic Review, American Economic Association, vol. 84(4), pages 1075-84, September.
  13. Brusco, Sebastiano, 1982. "The Emilian Model: Productive Decentralisation and Social Integration," Cambridge Journal of Economics, Oxford University Press, vol. 6(2), pages 167-84, June.
  14. Paul Krugman, 1992. "Geography and Trade," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262610868, June.
  15. Forni, Mario & Paba, Sergio, 2002. "Spillovers and the Growth of Local Industries," Journal of Industrial Economics, Wiley Blackwell, vol. 50(2), pages 151-71, June.
  16. 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 630-40, June.
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