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Technological convergence among US regions and states

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  • Catherine Co
  • Mark Wohar

Abstract

This paper employs unit root tests that allow for two endogenously determined structural breaks to study whether or not invention activities are converging across US regions/states. Using US patent data from 1929 to 1997, we find technological β-convergence in six of the nine Census regions, in 11 of the 14 leading states and in 28 of the 34 lagging states. Stochastic convergence, on the other hand, is found in three regions, in four leading states and in 17 lagging states. Carlino and Mills (1993) point out that both β- and stochastic convergence are necessary conditions for convergence. Putting these results together, we find convergence (both β- and stochastic) in invention activities in three regions, in three leading states and in 16 lagging states.

Suggested Citation

  • Catherine Co & Mark Wohar, 2004. "Technological convergence among US regions and states," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 13(2), pages 101-126.
  • Handle: RePEc:taf:ecinnt:v:13:y:2004:i:2:p:101-126 DOI: 10.1080/10438590410001628107
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    References listed on IDEAS

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    1. Loewy, Michael B. & Papell, David H., 1996. "Are U.S. regional incomes converging? Some further evidence," Journal of Monetary Economics, Elsevier, vol. 38(3), pages 587-598, December.
    2. 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.
    3. 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.
    4. Carlino, Gerald & Mills, Leonard, 1996. "Are U.S. regional incomes converging? Reply," Journal of Monetary Economics, Elsevier, vol. 38(3), pages 599-601, December.
    5. Bernard, Andrew B. & Durlauf, Steven N., 1996. "Interpreting tests of the convergence hypothesis," Journal of Econometrics, Elsevier, pages 161-173.
    6. Fujita,Masahisa & Thisse,Jacques-François, 2013. "Economics of Agglomeration," Cambridge Books, Cambridge University Press, number 9781107001411, December.
    7. 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, pages 577-598.
    8. Zivot, Eric & Andrews, Donald W K, 2002. "Further Evidence on the Great Crash, the Oil-Price Shock, and the Unit-Root Hypothesis," Journal of Business & Economic Statistics, American Statistical Association, vol. 20(1), pages 25-44, January.
    9. Bernard, Andrew B & Durlauf, Steven N, 1995. "Convergence in International Output," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 10(2), pages 97-108, April-Jun.
    10. Samuel S. Kortum, 1997. "Research, Patenting, and Technological Change," Econometrica, Econometric Society, vol. 65(6), pages 1389-1420, November.
    11. Robin L. Lumsdaine & David H. Papell, 1997. "Multiple Trend Breaks And The Unit-Root Hypothesis," The Review of Economics and Statistics, MIT Press, pages 212-218.
    12. Audretsch, David B & Feldman, Maryann P, 1996. "R&D Spillovers and the Geography of Innovation and Production," American Economic Review, American Economic Association, pages 630-640.
    13. Carlino, Gerald A. & Mills, Leonard O., 1993. "Are U.S. regional incomes converging? : A time series analysis," Journal of Monetary Economics, Elsevier, vol. 32(2), pages 335-346, November.
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    Citations

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    Cited by:

    1. Catherine Co & John List, 2004. "Is foreign direct investment attracted to 'knowledge creators'?," Applied Economics, Taylor & Francis Journals, vol. 36(11), pages 1143-1149.
    2. Habibullah, M.S. & Dayang-Afizzah, A.M., 2008. "Bordering neighbours: Testing for border effect on Malaysia's northern states and Southern Thailand," MPRA Paper 12103, University Library of Munich, Germany.
    3. John S. Landon-Lane & Catherine Y. Co & Myeong-Su Yun, 2006. "Inter-state dynamics of invention activities, 1930-2000," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 21(8), pages 1111-1134.
    4. Vicente German-Soto & Luis Gutiérrez Flores, 2015. "A Standardized Coefficients Model to Analyze the Regional Patents Activity: Evidence from the Mexican States," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), pages 72-89.
    5. Amit Batabyal & Peter Nijkamp, 2014. "Technology, Learning, and Long Run Economic Growth in Leading and Lagging Regions," ERSA conference papers ersa14p893, European Regional Science Association.
    6. repec:eee:appene:v:198:y:2017:i:c:p:410-425 is not listed on IDEAS

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