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Productivity, imperfect competition, and trade liberalization in Cote d'Ivoire

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Harrison, Ann E.

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Abstract

This paper analyzes changes in firm behaviour and productivity during trade liberalization in the Code d'Ivoire. For a panel of 287 firms, market power was estimated before and after a trade reform implemented in 1985. The results suggest that price-cost margins fell in a number of sectors following the reform. However, since the reform was accompanied by a real appreciation in the exchange rate, part of the fall in margins was also due to the conjunction of the trade reform with the adverse exchange rate movement. When productivity estimates are modified to account for changes in price-cost margins over the period, the positive correlation between trade reform and productivityis strengthened in some sectors and reversed in others. This paper outlines the theoretical approach and shows how ignoring the effects of liberalization on competition may lead researchers to mismeasure the effect of trade reform on productivity. It discusses trade policy changes in the Cote d'Ivoire and briefly describes the data. The paper presents estimation results and explores the sensitivity of productivity measures to alternative specifications, including the possibility that the technology is characterized by increasing returns to scale.

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Paper provided by The World Bank in its series Policy Research Working Paper Series with number 451.

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Date of creation: 31 Jul 1990
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Handle: RePEc:wbk:wbrwps:451

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Keywords: Economic Theory&Research; Environmental Economics&Policies; TF054105-DONOR FUNDED OPERATION ADMINISTRATION FEE INCOME AND EXPENSE ACCOUNT; Banks&Banking Reform; Access to Markets;

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Bhagwati, Jagdish N, 1988. "Export-Promoting Trade Strategy: Issues and Evidence," World Bank Research Observer, Oxford University Press, vol. 3(1), pages 27-57, January.
  2. Julio J. Rotemberg & Lawrence H. Summers, 1988. "Labor Hoarding, Inflexible Prices, and Procyclical Productivity," NBER Working Papers 2591, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  3. Hall, Robert E, 1988. "The Relation between Price and Marginal Cost in U.S. Industry," Journal of Political Economy, University of Chicago Press, vol. 96(5), pages 921-47, October. [Downloadable!] (restricted)
  4. Dani Rodrik, 1988. "Closing the Technology Gap: Does Trade Liberalization Really Help?," NBER Working Papers 2654, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Haddad, Mona, 1993. "How trade liberalization affected productivity in Morocco," Policy Research Working Paper Series 1096, The World Bank. [Downloadable!]
  2. Tybout, James R., 1991. "Researching the trade - productivity link : new directions," Policy Research Working Paper Series 638, The World Bank. [Downloadable!]
  3. James Levinsohn, 1991. "Testing the Imports-as-Market-Discipline Hypothesis," NBER Working Papers 3657, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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