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A Regional Model of Endogenous Growth with Creative Destruction

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Abstract

We examine endogenous growth through vertical innovations in a two region model with partial regional and varietal knowledge spillovers. This paper extends the growth literature by adding a regional endogenous growth model with improvements in product quality, instead of a product variety engine for growth, where we account for partial knowledge spillovers in R&D. Starting with the quality ladders endogenous growth model we add traditional goods production by unskilled workers, location as a factor in R&D spillovers, migration of knowledge workers and vary the freeness of trade. Production of each manufactured variety is contestable through vertical innovation based on available knowledge and as a result, firms choose a location to maximise the productivity of R&D, maintain their niche monopoly and minimise transport costs. With contestability, knowledge spillovers provide for additional growth and the partial nature of spillovers causes an additional clustering effect encouraging agglomeration. Growth is highest when there is full agglomeration in one location, as knowledge spillovers are greater with manufacturing concentration. Agglomerated locations are reliant on local inter-varietal knowledge spillovers for growth while peripheral locations rely on trade and regional knowledge spillovers. In the long run, locations experience equal growth rates. If a location becomes agglomerated, it has higher long-run wages and higher growth rates during the transition to the long run. The model offers policy implications for lagging economies to improve inter-regional knowledge spillovers while agglomerated economies should be more concerned with business interaction within the region. Policies which reduce barriers to migration will increase long run growth rates by accelerating the transition to agglomeration.

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File URL: ftp://mngt.waikato.ac.nz/RePEc/wai/econwp/1202.pdf
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Bibliographic Info

Paper provided by University of Waikato, Department of Economics in its series Working Papers in Economics with number 12/02.

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Length: 28 pages
Date of creation: 07 Apr 2012
Date of revision:
Handle: RePEc:wai:econwp:12/02

Note: Revised: 2012-09-01
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Keywords: endogenous growth; new economic geography; innovation; knowledge spillovers; agglomeration; quality ladders; creative destruction;

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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 1002-37, October.
  2. Aghion, P. & Howitt, P., 1990. "A Model Of Growth Through Creative Destruction," DELTA Working Papers 90-12, DELTA (Ecole normale supérieure).
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  11. Kyoko Hirose & Kazuhiro Yamamoto, 2005. "Knowledge spillovers, location of industry, and endogenous growth," Discussion Papers in Economics and Business 05-15, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).
  12. Yamamoto, Kazuhiro, 2003. "Agglomeration and growth with innovation in the intermediate goods sector," Regional Science and Urban Economics, Elsevier, vol. 33(3), pages 335-360, May.
  13. Martin, Philippe, 1999. "Public policies, regional inequalities and growth," Journal of Public Economics, Elsevier, vol. 73(1), pages 85-105, July.
  14. Alessandra Faggian & Philip McCann, 2009. "Human capital, graduate migration and innovation in British regions," Cambridge Journal of Economics, Oxford University Press, vol. 33(2), pages 317-333, March.
  15. Baldwin, Richard E & Forslid, Rikard, 2000. "The Core-Periphery Model and Endogenous Growth: Stabilizing and Destabilizing Integration," Economica, London School of Economics and Political Science, vol. 67(267), pages 307-24, August.
  16. 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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