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Exports, Imports and Wages:Evidence from Matched Firm-Worker-Product Panels

  • Pedro Martins
  • Luca David Opromolla

The analysis of the effects of firm-level international trade on wages has so far focused on the role of exports, which are also typically treated as a composite good. However, we show in this paper that firm-level imports can actually be a wage determinant as important as exports. Furthermore, we also find significant differences in the relationship between trade and wages across types of products. In particular, firms that increase their exports (imports) of high- (intermediate-) technology products tend to increase their salaries. Our analysis is based on unique data from Portugal, obtained by merging a matched firm-worker panel and a matched firm-transaction panel. Our data set follows the population of manufacturing firms and all their workers from 1995 to 2005 and allows for several control variables, including jobspell fixed effects.

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Paper provided by Banco de Portugal, Economics and Research Department in its series Working Papers with number w201002.

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Date of creation: 2010
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Handle: RePEc:ptu:wpaper:w201002
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  1. Andrew B. Bernard & J. Bradford Jensen, 1997. "Exceptional Exporter Performance: Cause, Effect, or Both?," NBER Working Papers 6272, National Bureau of Economic Research, Inc.
  2. Pedro S. Martins, 2004. "Do Foreign Firms Really Pay Higher Wages? : Evidence from Different Estimators," CRIEFF Discussion Papers 0409, Centre for Research into Industry, Enterprise, Finance and the Firm.
  3. Sofronis Clerides & Saul Lach & James Tybout, 1996. "Is "Learning-by-Exporting" Important? Micro-Dynamic Evidence from Colombia, Mexico and Morocco," NBER Working Papers 5715, National Bureau of Economic Research, Inc.
  4. John M. Abowd & Francis Kramarz & David N. Margolis, 1999. "High Wage Workers and High Wage Firms," Econometrica, Econometric Society, vol. 67(2), pages 251-334, March.
  5. Laszlo Halpern & Miklos Koren & Adam Szeidl, 2006. "Imports and Productivity," 2006 Meeting Papers 796, Society for Economic Dynamics.
  6. Eric Verhoogen, 2007. "Trade, quality upgrading and wage inequality in the Mexican manufacturing sector," Discussion Papers 0607-08, Columbia University, Department of Economics.
  7. Martins, Pedro S., 2007. "Dismissals for Cause: The Difference That Just Eight Paragraphs Can Make," IZA Discussion Papers 3112, Institute for the Study of Labor (IZA).
  8. Amiti, Mary & Konings, Jozef, 2005. "Trade Liberalization, Intermediate Inputs and Productivity: Evidence from Indonesia," CEPR Discussion Papers 5104, C.E.P.R. Discussion Papers.
  9. Carlo Altomonte & Gabor Bekes, 2009. "Trade Complexity and Productivity," IEHAS Discussion Papers 0914, Institute of Economics, Centre for Economic and Regional Studies, Hungarian Academy of Sciences.
  10. Johannes Van Biesebroeck, 2003. "Exporting Raises Productivity in Sub-Saharan African Manufacturing Plants," NBER Working Papers 10020, National Bureau of Economic Research, Inc.
  11. Andrew.B Bernard & J. Bradford Jensen & Stephen Redding & Peter K. Schott, 2007. "Firms in international trade," LSE Research Online Documents on Economics 3682, London School of Economics and Political Science, LSE Library.
  12. Thorsten Schank & Claus Schnabel & Joachim Wagner, 2006. "Do exporters really pay higher wages? First evidence from German linked employer-employee data," Working Paper Series in Economics 28, University of Lüneburg, Institute of Economics.
  13. Pinelopi Goldberg & Amit Khandelwal & Nina Pavcnik & Petia Topalova, 2009. "Imported Intermediate Inputs and Domestic Product Growth: Evidence from India," Working Papers 1179, Princeton University, Department of Economics, Center for Economic Policy Studies..
  14. Richard B. Freeman, 1995. "Are Your Wages Set in Beijing?," Journal of Economic Perspectives, American Economic Association, vol. 9(3), pages 15-32, Summer.
  15. Amiti, Mary & Davis, Donald R, 2008. "Trade, Firms, and Wages: Theory and Evidence," CEPR Discussion Papers 6872, C.E.P.R. Discussion Papers.
  16. Jan De Loecker, 2004. "Do Exports Generate Higher Productivity? Evidence from Slovenia," LICOS Discussion Papers 15104, LICOS - Centre for Institutions and Economic Performance, KU Leuven.
  17. Hiroyuki Kasahara & Joel Rodrigue, 2005. "Does the Use of Imported Intermediates Increase Productivity? Plant-Level Evidence," University of Western Ontario, Economic Policy Research Institute Working Papers 20057, University of Western Ontario, Economic Policy Research Institute.
  18. Pedro S. Martins, 2008. "Paying More to Hire the Best? Foreign Firms, Wages and Worker Mobility," Working Papers 17, Queen Mary, University of London, School of Business and Management, Centre for Globalisation Research.
  19. Melitz, Marc J, 2002. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," CEPR Discussion Papers 3381, C.E.P.R. Discussion Papers.
  20. Carneiro, Anabela & Guimaraes, Paulo & Portugal, Pedro, 2009. "Real Wages and the Business Cycle: Accounting for Worker and Firm Heterogeneity," IZA Discussion Papers 4174, Institute for the Study of Labor (IZA).
  21. João Amador & Luca David Opromolla, 2008. "Product and Destination Mix in Export Markets," Working Papers w200817, Banco de Portugal, Economics and Research Department.
  22. Andrew B. Bernard & J. Bradford Jensen, 2004. "Why Some Firms Export," The Review of Economics and Statistics, MIT Press, vol. 86(2), pages 561-569, May.
  23. Munch, Jakob R. & Skaksen, Jan Rose, 2006. "Human Capital and Wages in Exporting Firms," IZA Discussion Papers 2409, Institute for the Study of Labor (IZA).
  24. Guimaraes, Paulo & Portugal, Pedro, 2009. "A Simple Feasible Alternative Procedure to Estimate Models with High-Dimensional Fixed Effects," IZA Discussion Papers 3935, Institute for the Study of Labor (IZA).
  25. Lu�s M B Cabral & Jos� Mata, 2003. "On the Evolution of the Firm Size Distribution: Facts and Theory," American Economic Review, American Economic Association, vol. 93(4), pages 1075-1090, September.
  26. Davidson, Carl & Matusz, Steven J. & Shevchenko, Andrei, 2008. "Globalization and firm level adjustment with imperfect labor markets," Journal of International Economics, Elsevier, vol. 75(2), pages 295-309, July.
  27. Iacovone, Leonardo & Javorcik, Beata S., 2008. "Multi-product exporters : diversification and micro-level dynamics," Policy Research Working Paper Series 4723, The World Bank.
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