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Why Ex(Im)porters Pay More: Evidence from Matched Firm-Worker Panels

  • Pedro Martins
  • Luca David Opromolla

We investigate the relationship between exporting, importing, and wage premia using a rich matched employer-employee data set. We improve on the previous literature (i) by using a new methodology to quantify the contribution of an extensive set of worker- and rm-level observable and� unobservable characteristics to the wage gap, and (ii) by controlling for the import as well as the export activity of the firm. These two innovations allow us to avoid large biases that characterized the previous literature. A robust result is that the hiring policy of exporters is quite different than the one of importers. While firm size and sales are, to different extents, important components of the wage gap both for exporters and importers, importers hire workers that are overwhelmingly more able than the average. Workers at exporting firms, on the contrary, are no different in terms of unobserved time-invariant characteristics.Our analysis provides a useful guidance for recent theories that aim at explaining participation both in export and import markets and at including non-neoclassical labor market features into trade models.

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Paper provided by Banco de Portugal, Economics and Research Department in its series Working Papers with number w201123.

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Date of creation: 2011
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Handle: RePEc:ptu:wpaper:w201123
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  1. Mirabelle Muuls & Mauro Pisu, 2007. "Imports and exports at the level of the firm: evidence from Belgium," LSE Research Online Documents on Economics 19711, London School of Economics and Political Science, LSE Library.
  2. Helpman, Elhanan & Itskhoki, Oleg & Redding, Stephen J., 2011. "Trade and Labor Market Outcomes," CEPR Discussion Papers 8191, C.E.P.R. Discussion Papers.
  3. Mary Amiti & Donald R. Davis, 2008. "Trade, Firms, and Wages: Theory and Evidence," NBER Working Papers 14106, National Bureau of Economic Research, Inc.
  4. Devashish Mitra & Priya Ranjan, 2007. "Offshoring and Unemployment," NBER Working Papers 13149, National Bureau of Economic Research, Inc.
  5. 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.
  6. Anabela Carneiro & Paulo Guimaraes & Pedro Portugal, 2009. "Real Wages and the Business Cycle: Accounting for Worker and Firm Heterogeneity," CEF.UP Working Papers 0903, Universidade do Porto, Faculdade de Economia do Porto.
  7. Paul R. Krugman, 2008. "Trade and Wages, Reconsidered," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 39(1 (Spring), pages 103-154.
  8. 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).
  9. João Amador & Luca David Opromolla, 2008. "Product and Destination Mix in Export Markets," Working Papers w200817, Banco de Portugal, Economics and Research Department.
  10. Halpern, László & Koren, Miklós & Szeidl, Adam, 2005. "Imports and Productivity," CEPR Discussion Papers 5139, C.E.P.R. Discussion Papers.
  11. Johannes Van Biesebroeck, 2003. "Exporting Raises Productivity in Sub-Saharan African Manufacturing Plants," NBER Working Papers 10020, National Bureau of Economic Research, Inc.
  12. Hartmut Egger & Udo Kreickemeier, 2009. "Firm Heterogeneity And The Labor Market Effects Of Trade Liberalization," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 50(1), pages 187-216, 02.
  13. De Loecker, Jan, 2007. "Do exports generate higher productivity? Evidence from Slovenia," Journal of International Economics, Elsevier, vol. 73(1), pages 69-98, September.
  14. Paulo Guimarães & Pedro Portugal, 2009. "A Simple Feasible Alternative Procedure to Estimate Models with High-Dimensional Fixed Effects," Working Papers w200909, Banco de Portugal, Economics and Research Department.
  15. Andrew B. Bernard & J. Bradford Jensen & Stephen J. Redding & Peter K. Schott, 2007. "Firms in International Trade," NBER Working Papers 13054, National Bureau of Economic Research, Inc.
  16. Felbermayr, Gabriel & Prat, Julien & Schmerer, Hans-Jörg, 2008. "Globalization and Labor Market Outcomes: Wage Bargaining, Search Frictions, and Firm Heterogeneity," IZA Discussion Papers 3363, Institute for the Study of Labor (IZA).
  17. Ana Rute Cardoso & Pedro Portugal, 2005. "Contractual Wages and the Wage Cushion under Different Bargaining Settings," Journal of Labor Economics, University of Chicago Press, vol. 23(4), pages 875-902, October.
  18. Carlo Altomonte & Gabor Békés, 2009. "Trade Complexity and Productivity," KITeS Working Papers 016, KITeS, Centre for Knowledge, Internationalization and Technology Studies, Universita' Bocconi, Milano, Italy, revised Jul 2009.
  19. Irarrazabal, Alfonso & Moxnes, Andreas & Opromolla, Luca David, 2009. "The Margins of Multinational Production and the Role of Intra-firm trade," CEPR Discussion Papers 7145, C.E.P.R. Discussion Papers.
  20. Pinelopi K. Goldberg & Amit Khandelwal & Nina Pavcnik & Petia Topalova, 2008. "Imported Intermediate Inputs and Domestic Product Growth: Evidence from India," NBER Working Papers 14416, National Bureau of Economic Research, Inc.
  21. Munch, Jakob Roland & Rose Skaksen, Jan, 2009. "Human Capital and Wages in Exporting Firms," Working Papers 09-2006, Copenhagen Business School, Department of Economics.
  22. Alfonso Irarrazabal & Andreas Moxnes & Karen Helene Ulltveit-Moe, 2013. "Heterogeneous Firms or Heterogeneous Workers? Implications for Exporter Premiums and the Gains from Trade," The Review of Economics and Statistics, MIT Press, vol. 95(3), pages 839-849, July.
  23. 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.
  24. 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.
  25. Pedro Portugal & Olivier Blanchard, 2001. "What Hides Behind an Unemployment Rate: Comparing Portuguese and U.S. Labor Markets," American Economic Review, American Economic Association, vol. 91(1), pages 187-207, March.
  26. 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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