The Role of Specialisation and Diversity Externalities in the Agglomeration of Innovative Activities
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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- Stefano Breschi, 2000. "The Geography of Innovation: A Cross-sector Analysis," Regional Studies, Taylor & Francis Journals, vol. 34(3), pages 213-229.
- 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 1126-52, December.
- Glaeser, Edward Ludwig & Kallal, Hedi D. & Scheinkman, Jose A. & Shleifer, Andrei, 1992. "Growth in Cities," Scholarly Articles 3451309, Harvard University Department of Economics.
- 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.
- 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.
- 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.
- Adam B. Jaffe & Manuel Trajtenberg & Rebecca Henderson, 1992.
"Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations,"
NBER Working Papers
3993, National Bureau of Economic Research, Inc.
- Adam B. Jaffe & Manuel Trajtenberg & Rebecca Henderson, 1993. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," The Quarterly Journal of Economics, Oxford University Press, vol. 108(3), pages 577-598.
- Jaffe, A.B. & Trajtenberg, M., 1992. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," Papers 14-92, Tel Aviv.
- 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.
- 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.
- Glenn Ellison & Edward L. Glaeser, 1999.
"The Geographic Concentration of Industry: Does Natural Advantage Explain Agglomeration?,"
Harvard Institute of Economic Research Working Papers
1862, Harvard - Institute of Economic Research.
- 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.
- Gianmarco I. P. Ottaviano & Diego Puga, 1998.
"Agglomeration in the Global Economy: A Survey of the 'New Economic Geography',"
The World Economy,
Wiley Blackwell, vol. 21(6), pages 707-731, 08.
- 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.
- Raffaele Paci & Stefano Usai, 1998.
"Technological enclaves and industrial districts: An analysis of the regional distribution of innovative activity in Europe,"
ERSA conference papers
ersa98p461, European Regional Science Association.
- Raffaele Paci & Stefano Usai, 2000. "Technological Enclaves and Industrial Districts: An Analysis of the Regional Distribution of Innovative Activity in Europe," Regional Studies, Taylor & Francis Journals, vol. 34(2), pages 97-114.
- 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.
- 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.
- 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.
- Kelly, Morgan & Hageman, Anya, 1999. "Marshallian Externalities in Innovation," Journal of Economic Growth, Springer, vol. 4(1), pages 39-54, March.
- 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.
- Paul Krugman, 1992. "Geography and Trade," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262610868, March.
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