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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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File URL: http://www2.uah.es/iaes/publicaciones/DT_08_14.pdf
File Function: First version, 2014
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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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  1. 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.
  2. Park, Jungsoo, 2004. "International student flows and R&D spillovers," Economics Letters, Elsevier, vol. 82(3), pages 315-320, March.
  3. Pesaran, M.H. & Smith, R., 1992. "Estimating Long-Run Relationships From Dynamic Heterogeneous Panels," Cambridge Working Papers in Economics 9215, Faculty of Economics, University of Cambridge.
  4. M. Hashem Pesaran & Elisa Tosetti, 2007. "Large Panels with Common Factors and Spatial Correlations," CESifo Working Paper Series 2103, CESifo Group Munich.
  5. Zvi Griliches, 1998. "Issues in Assessing the Contribution of Research and Development to Productivity Growth," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 17-45 National Bureau of Economic Research, Inc.
  6. Markus Eberhardt, 2012. "Estimating panel time-series models with heterogeneous slopes," Stata Journal, StataCorp LP, vol. 12(1), pages 61-71, March.
  7. Nick Bloom & Stephen Bond & John Van Reenen, 2006. "Uncertainty and Investment Dynamics," CEP Discussion Papers dp0739, Centre for Economic Performance, LSE.
  8. Nicholas Bloom, 2007. "Uncertainty and the Dynamics of R&D," Discussion Papers 07-021, Stanford Institute for Economic Policy Research.
  9. 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.
  10. Badi H. Baltagi & Georges Bresson & Alain Pirotte, 2006. "Panel Unit Root Tests and Spatial Dependence," Center for Policy Research Working Papers 88, Center for Policy Research, Maxwell School, Syracuse University.
  11. Pesaran, M.H., 2004. "‘General Diagnostic Tests for Cross Section Dependence in Panels’," Cambridge Working Papers in Economics 0435, Faculty of Economics, University of Cambridge.
  12. M. Hashem Pesaran, 2006. "Estimation and Inference in Large Heterogeneous Panels with a Multifactor Error Structure," Econometrica, Econometric Society, vol. 74(4), pages 967-1012, 07.
  13. 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.
  14. M. Hashem Pesaran, 2007. "A simple panel unit root test in the presence of cross-section dependence," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 22(2), pages 265-312.
  15. 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.
  16. Donald W.K. Andrews, 2003. "Cross-section Regression with Common Shocks," Cowles Foundation Discussion Papers 1428, Cowles Foundation for Research in Economics, Yale University.
  17. Chudik, Alexander & Pesaran, Hashem & Tosetti, Elisa, 2009. "Weak and strong cross section dependence and estimation of large panels," Working Paper Series 1100, European Central Bank.
  18. Wolfgang Keller, 1996. "Are International R&D Spillovers Trade-related? Analyzing Spillovers among Randomly Matched Trade Partners," International Trade 9608002, EconWPA.
  19. 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.
  20. David T. Coe & Alexander W. Hoffmaister, 1999. "Are there International RandD Spillovers Among Randomly Matched Trade Partners? A Response to Keller," IMF Working Papers 99/18, International Monetary Fund.
  21. Pesaran, M. Hashem & Vanessa Smith, L. & Yamagata, Takashi, 2013. "Panel unit root tests in the presence of a multifactor error structure," Journal of Econometrics, Elsevier, vol. 175(2), pages 94-115.
  22. Pesaran, Hashem & Chudik, Alexander, 2013. "Common Correlated Effects Estimation of Heterogeneous Dynamic Panel Data Models with Weakly Exogenous Regressors," Cambridge Working Papers in Economics 1317, Faculty of Economics, University of Cambridge.
  23. Alexander Chudik & M. Hashem Pesaran, 2013. "Large Panel Data Models with Cross-Sectional Dependence: A Survey," CESifo Working Paper Series 4371, CESifo Group Munich.
  24. Francesco Moscone & Elisa Tosetti, 2009. "A Review And Comparison Of Tests Of Cross-Section Independence In Panels," Journal of Economic Surveys, Wiley Blackwell, vol. 23(3), pages 528-561, 07.
  25. 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.
  26. Edmond, Chris, 2001. "Some Panel Cointegration Models of International R&D Spillovers," Journal of Macroeconomics, Elsevier, vol. 23(2), pages 241-260, April.
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