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The better you are the stronger it makes you: Evidence on the asymmetric impact of liberalization

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  • Iacovone, Leonardo

Abstract

This paper shows how trade liberalization can have an asymmetric effect on heterogeneous firms. It develops a neo-Schumpeterian growth model predicting that the impact of liberalization on economic performance is positive “on average”, but more advanced firms benefit more. These predictions are tested using Mexican plant-level data confirming that, under NAFTA, the liberalization spurred productivity growth on average. However, the empirical analysis goes beyond estimating the average effect of liberalization and shows that more advanced firms benefited disproportionately more from the liberalization. Focusing on the mechanisms explaining these results, the paper shows that the results are not just driven by an increase in input usage and investments, but rather by innovative and managerial efforts as they are significantly stronger in those sectors where the scope for innovative activities is larger.

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  • Iacovone, Leonardo, 2012. "The better you are the stronger it makes you: Evidence on the asymmetric impact of liberalization," Journal of Development Economics, Elsevier, vol. 99(2), pages 474-485.
  • Handle: RePEc:eee:deveco:v:99:y:2012:i:2:p:474-485
    DOI: 10.1016/j.jdeveco.2012.06.001
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    1. James R. Tybout, 2000. "Manufacturing Firms in Developing Countries: How Well Do They Do, and Why?," Journal of Economic Literature, American Economic Association, vol. 38(1), pages 11-44, March.
    2. Philippe Aghion & Nick Bloom & Richard Blundell & Rachel Griffith & Peter Howitt, 2005. "Competition and Innovation: an Inverted-U Relationship," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 120(2), pages 701-728.
    3. Carsten Kowalczyk & Donald R. Davis, 1998. "Tariff Phase-Outs: Theory and Evidence from GATT and NAFTA," NBER Chapters, in: The Regionalization of the World Economy, pages 227-258, National Bureau of Economic Research, Inc.
    4. Eric A. Verhoogen, 2008. "Trade, Quality Upgrading, and Wage Inequality in the Mexican Manufacturing Sector," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 123(2), pages 489-530.
    5. Nina Pavcnik, 2002. "Trade Liberalization, Exit, and Productivity Improvements: Evidence from Chilean Plants," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 69(1), pages 245-276.
    6. Fernandes, Ana M., 2007. "Trade policy, trade volumes and plant-level productivity in Colombian manufacturing industries," Journal of International Economics, Elsevier, vol. 71(1), pages 52-71, March.
    7. Yeaple, Stephen Ross, 2005. "A simple model of firm heterogeneity, international trade, and wages," Journal of International Economics, Elsevier, vol. 65(1), pages 1-20, January.
    8. Juan Carlos Hallak & James Levinsohn, 2004. "Fooling Ourselves: Evaluating the Globalization and Growth Debate," Working Papers 509, Research Seminar in International Economics, University of Michigan.
    9. Head, Keith & Ries, John, 1999. "Rationalization effects of tariff reductions," Journal of International Economics, Elsevier, vol. 47(2), pages 295-320, April.
    10. Leibenstein, Harvey, 1978. "On the Basic Proposition of X-Efficiency Theory," American Economic Review, American Economic Association, vol. 68(2), pages 328-332, May.
    11. Haskel, Jonathan, 1991. "Imperfect Competition, Work Practices and Productivity Growth," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 53(3), pages 265-279, August.
    12. Richard Disney & Jonathan Haskel & Ylva Heden, 2003. "Restructuring and productivity growth in uk manufacturing," Economic Journal, Royal Economic Society, vol. 113(489), pages 666-694, July.
    13. Roberto Alvarez & Gustavo Crespi, 2007. "Multinational firms and productivity catching-up: the case of Chilean manufacturing," International Journal of Technological Learning, Innovation and Development, Inderscience Enterprises Ltd, vol. 1(2), pages 136-152.
    14. Griffith, Rachel & Redding, Stephen & Simpson, Helen, 2002. "Productivity Convergence and Foreign Ownership at the Establishment Level," CEPR Discussion Papers 3765, C.E.P.R. Discussion Papers.
    15. Philippe Aghion & Robin Burgess & Stephen Redding & Fabrizio Zilibotti, 2005. "Entry Liberalization and Inequality in Industrial Performance," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 291-302, 04/05.
    16. Alla Lileeva & Daniel Trefler, 2010. "Improved Access to Foreign Markets Raises Plant-level Productivity…For Some Plants," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 125(3), pages 1051-1099.
    17. Rajan, Raghuram G & Zingales, Luigi, 1998. "Financial Dependence and Growth," American Economic Review, American Economic Association, vol. 88(3), pages 559-586, June.
    18. Aaron Tornell & Gerardo Esquivel Hernández, 1997. "The Political Economy of Mexico's Entry into NAFTA," NBER Chapters, in: Regionalism versus Multilateral Trade Arrangements, pages 25-56, National Bureau of Economic Research, Inc.
    19. Elhanan Helpman & Marc J. Melitz & Stephen R. Yeaple, 2004. "Export Versus FDI with Heterogeneous Firms," American Economic Review, American Economic Association, vol. 94(1), pages 300-316, March.
    20. Schor, Adriana, 2004. "Heterogeneous productivity response to tariff reduction. Evidence from Brazilian manufacturing firms," Journal of Development Economics, Elsevier, vol. 75(2), pages 373-396, December.
    21. Alla Lileeva & Daniel Trefler, 2007. "Improved Access to Foreign Markets Raises Plant-Level Productivity ... for Some Plants," NBER Working Papers 13297, National Bureau of Economic Research, Inc.
    22. Paula Bustos, 2011. "Trade Liberalization, Exports, and Technology Upgrading: Evidence on the Impact of MERCOSUR on Argentinian Firms," American Economic Review, American Economic Association, vol. 101(1), pages 304-340, February.
    23. Daniel Trefler, 2004. "The Long and Short of the Canada-U. S. Free Trade Agreement," American Economic Review, American Economic Association, vol. 94(4), pages 870-895, September.
    24. Andrew B. Bernard & Stephen J. Redding & Peter K. Schott, 2007. "Comparative Advantage and Heterogeneous Firms," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 74(1), pages 31-66.
    25. Tybout, James R. & Westbrook, M. Daniel, 1995. "Trade liberalization and the dimensions of efficiency change in Mexican manufacturing industries," Journal of International Economics, Elsevier, vol. 39(1-2), pages 53-78, August.
    26. Mary Amiti & Jozef Konings, 2007. "Trade Liberalization, Intermediate Inputs, and Productivity: Evidence from Indonesia," American Economic Review, American Economic Association, vol. 97(5), pages 1611-1638, December.
    27. Revenga, Ana, 1997. "Employment and Wage Effects of Trade Liberalization: The Case of Mexican Manufacturing," Journal of Labor Economics, University of Chicago Press, vol. 15(3), pages 20-43, July.
    28. Mark Doms & Eric J. Bartelsman, 2000. "Understanding Productivity: Lessons from Longitudinal Microdata," Journal of Economic Literature, American Economic Association, vol. 38(3), pages 569-594, September.
    29. Jovanovic, Boyan, 1982. "Selection and the Evolution of Industry," Econometrica, Econometric Society, vol. 50(3), pages 649-670, May.
    30. Cameron,A. Colin & Trivedi,Pravin K., 2005. "Microeconometrics," Cambridge Books, Cambridge University Press, number 9780521848053.
    31. repec:umd:umdeco:rodriguez9901 is not listed on IDEAS
    32. Ernesto López-Córdova, 2003. "NAFTA and Manufacturing Productivity in Mexico," Economía Journal, The Latin American and Caribbean Economic Association - LACEA, vol. 0(Fall 2003), pages 55-98, August.
    33. Petia Topalova & Amit Khandelwal, 2011. "Trade Liberalization and Firm Productivity: The Case of India," The Review of Economics and Statistics, MIT Press, vol. 93(3), pages 995-1009, August.
    34. Aw, Bee Yan & Chen, Xiaomin & Roberts, Mark J., 2001. "Firm-level evidence on productivity differentials and turnover in Taiwanese manufacturing," Journal of Development Economics, Elsevier, vol. 66(1), pages 51-86, October.
    35. Arellano, Manuel, 2003. "Panel Data Econometrics," OUP Catalogue, Oxford University Press, number 9780199245291.
    36. Martin, John P, 1978. "X-inefficiency, Managerial Effort and Protection," Economica, London School of Economics and Political Science, vol. 45(179), pages 273-286, August.
    37. Gordon H. Hanson & Ann Harrison, 2022. "Trade Liberalization And Wage Inequality In Mexico," World Scientific Book Chapters, in: Globalization, Firms, and Workers, chapter 3, pages 43-60, World Scientific Publishing Co. Pte. Ltd..
    38. Chad Syverson, 2004. "Product Substitutability and Productivity Dispersion," The Review of Economics and Statistics, MIT Press, vol. 86(2), pages 534-550, May.
    39. L'industria, 2007. "Multinational Firms, Innovation and Productivity," L'industria, Società editrice il Mulino, issue 2, pages 355-358.
    40. Marc J. Melitz, 2003. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," Econometrica, Econometric Society, vol. 71(6), pages 1695-1725, November.
    41. Nickell, Stephen J, 1996. "Competition and Corporate Performance," Journal of Political Economy, University of Chicago Press, vol. 104(4), pages 724-746, August.
    42. Rauch, James E., 1999. "Networks versus markets in international trade," Journal of International Economics, Elsevier, vol. 48(1), pages 7-35, June.
    43. Klara Sabirianova & Jan Svejnar & Katherine Terrell, 2005. "Distance to the Efficiency Frontier and Foreign Direct Investment Spillovers," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 576-586, 04/05.
    44. Francisco Rodríguez & Dani Rodrik, 2001. "Trade Policy and Economic Growth: A Skeptic's Guide to the Cross-National Evidence," NBER Chapters, in: NBER Macroeconomics Annual 2000, Volume 15, pages 261-338, National Bureau of Economic Research, Inc.
    45. Goldberg, Pinelopi Koujianou & Pavcnik, Nina, 2005. "Trade, wages, and the political economy of trade protection: evidence from the Colombian trade reforms," Journal of International Economics, Elsevier, vol. 66(1), pages 75-105, May.
    46. Martin, John P & Page, John M, Jr, 1983. "The Impact of Subsidies on X-Efficiency in LDC Industry: Theory and an Empirical Test," The Review of Economics and Statistics, MIT Press, vol. 65(4), pages 608-617, November.
    47. Adriana Schor, 2004. "Heterogeneous Productivity Response to Tariff Reduction: Evidence from Brazilian Manufacturing Firms," NBER Working Papers 10544, National Bureau of Economic Research, Inc.
    48. De Hoyos, Rafael E. & Iacovone, Leonardo, 2013. "Economic Performance under NAFTA: A Firm-Level Analysis of the Trade-productivity Linkages," World Development, Elsevier, vol. 44(C), pages 180-193.
    49. Geroski, P A, 1990. "Innovation, Technological Opportunity, and Market Structure," Oxford Economic Papers, Oxford University Press, vol. 42(3), pages 586-602, July.
    50. Hopenhayn, Hugo A, 1992. "Entry, Exit, and Firm Dynamics in Long Run Equilibrium," Econometrica, Econometric Society, vol. 60(5), pages 1127-1150, September.
    51. Dani Rodrik, 1988. "Imperfect Competition, Scale Economies, and Trade Policy in Developing Countries," NBER Chapters, in: Trade Policy Issues and Empirical Analysis, pages 109-144, National Bureau of Economic Research, Inc.
    52. Robert E. Baldwin, 1988. "Trade Policy Issues and Empirical Analysis," NBER Books, National Bureau of Economic Research, Inc, number bald88-2, March.
    53. Nelson, Richard R, 1981. "Research on Productivity Growth and Productivity Differences: Dead Ends and New Departures," Journal of Economic Literature, American Economic Association, vol. 19(3), pages 1029-1064, September.
    54. James R. Tybout, 2001. "Plant- and Firm-Level Evidence on "New" Trade Theories," NBER Working Papers 8418, National Bureau of Economic Research, Inc.
    55. Philippe Aghion & Evguenia Bessonova, 2006. "On Entry and Growth: Theory and Evidence," Revue de l'OFCE, Presses de Sciences-Po, vol. 97(5), pages 259-278.
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    More about this item

    Keywords

    Liberalization; NAFTA; Innovation; Heterogeneous firms; Neo-Schumpeterian models;
    All these keywords.

    JEL classification:

    • D22 - Microeconomics - - Production and Organizations - - - Firm Behavior: Empirical Analysis
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade
    • F15 - International Economics - - Trade - - - Economic Integration
    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure
    • L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance
    • L60 - Industrial Organization - - Industry Studies: Manufacturing - - - General
    • O12 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Microeconomic Analyses of Economic Development
    • O14 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Industrialization; Manufacturing and Service Industries; Choice of Technology
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives

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