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International R&D spillovers and unobserved common shocks

  • Diego-Ivan Ruge-Leiva

This paper investigates the effects of the domestic and foreign R&D weighted by bilateral imports on productivity accounting for the heterogeneous impact of unobserved micro and macroeconomic common shocks, which are modeled in a multifactor error structure. Using a panel of 50 economies from 1970-2011, I find that when unobserved common shocks are not regarded, as has been done by the literature in this area, estimates of domestic R&D and foreign R&D might be biased and inconsistent. Once unobserved common shocks are accounted for, by allowing for heterogeneous technology coefficients, significant estimates become more sizable, consistent and not seriously biased in most cases. However, these estimates might be capturing not only returns to domestic R&D and trade-related knowledge spillovers, but also unobserved common spillovers and other effects. This indicates that knowledge spillovers and effects of unknown form cannot be easily separated. Therefore, unobserved common shocks should be considered when estimating returns to domestic R&D and international R&D spillovers.

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Paper provided by Instituto Universitario de Análisis Económico y Social in its series Working Papers with number 08/14.

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Length: 74 pages
Date of creation: Jul 2014
Date of revision:
Handle: RePEc:uae:wpaper:0814
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  9. Pesaran, M. Hashem & Tosetti, Elisa, 2007. "Large Panels with Common Factors and Spatial Correlations," IZA Discussion Papers 3032, Institute for the Study of Labor (IZA).
  10. Alexander Chudik & M. Hashem Pesaran, 2013. "Common Correlated Effects Estimation of Heterogeneous Dynamic Panel Data Models with Weakly Exogenous Regressors," CESifo Working Paper Series 4232, CESifo Group Munich.
  11. Bravo-Ortega, Claudio & García Marín, Álvaro, 2011. "R&D and Productivity: A Two Way Avenue?," World Development, Elsevier, vol. 39(7), pages 1090-1107, July.
  12. Donald W. K. Andrews, 2005. "Cross-Section Regression with Common Shocks," Econometrica, Econometric Society, vol. 73(5), pages 1551-1585, 09.
  13. repec:att:wimass:9607 is not listed on IDEAS
  14. Eberhardt, Markus & Helmers, Christian & Strauss, Hubert, 2010. "Do spillovers matter when estimating private returns to R&D?," Economic and Financial Reports 2010/1, European Investment Bank, Economics Department.
  15. Markus Eberhardt, 2012. "Estimating panel time-series models with heterogeneous slopes," Stata Journal, StataCorp LP, vol. 12(1), pages 61-71, March.
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  17. Keller, Wolfgang, 1998. "Are international R&D spillovers trade-related?: Analyzing spillovers among randomly matched trade partners," European Economic Review, Elsevier, vol. 42(8), pages 1469-1481, September.
  18. Pesaran, M. Hashem & Smith, Ron, 1995. "Estimating long-run relationships from dynamic heterogeneous panels," Journal of Econometrics, Elsevier, vol. 68(1), pages 79-113, July.
  19. Edmond, Chris, 2001. "Some Panel Cointegration Models of International R&D Spillovers," Journal of Macroeconomics, Elsevier, vol. 23(2), pages 241-260, April.
  20. Natalia Bailey & Sean Holly & N. Hashem Pesaran, 2013. "A Two Stage Approach to Spatiotemporal Analysis with Strong and weak cross Sectional Dependence," Cambridge Working Papers in Economics 1362, Faculty of Economics, University of Cambridge.
  21. Peter Klenow & Andrés Rodríguez-Clare, 1997. "The Neoclassical Revival in Growth Economics: Has It Gone Too Far?," NBER Chapters, in: NBER Macroeconomics Annual 1997, Volume 12, pages 73-114 National Bureau of Economic Research, Inc.
  22. Park, Jungsoo, 2004. "International student flows and R&D spillovers," Economics Letters, Elsevier, vol. 82(3), pages 315-320, March.
  23. Alexander Chudik & Kamiar Mohaddes & M. Hashem Pesaran & Mehdi Raissi, 2013. "Debt, Inflation and Growth - Robust Estimation of Long-Run Effects in Dynamic Panel Data Models," CESifo Working Paper Series 4508, CESifo Group Munich.
  24. Bruno Van Pottelsberghe & Dominique Guellec, 2004. "From R&D to productivity growth: do the institutional settings and the sources of funds of R&D matter?," ULB Institutional Repository 2013/6207, ULB -- Universite Libre de Bruxelles.
  25. Nicholas Bloom, 2007. "Uncertainty and the Dynamics of R&D," NBER Working Papers 12841, National Bureau of Economic Research, Inc.
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  27. David T. Coe & Alexander W. Hoffmaister, 1999. "Are There International R&D Spillovers Among Randomly Matched Trade Partners? A Response to Keller," IMF Working Papers 99/18, International Monetary Fund.
  28. Mark Funk, 2001. "Trade and International R&D Spillovers among OECD Countries," Southern Economic Journal, Southern Economic Association, vol. 67(3), pages 725-736, January.
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