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Nonlinear Panel Estimation Of Time-Varying Effects Of Import Quotas


  • Joseph Francois

    () (Johannes Kepler University (Linz))

  • Julia Woerz

    () (Austrian National Bank)


We develop a panel-based ICLS framework for estimating the export tax equivalent (ETE) of quotas where the ETEs vary over time. Working with a panel of bilateral data on textile and clothing trade, underlying bilateral tari?s, and the country-pair coverage of quotas under the WTOÕs Agreement on Textiles and Clothing (ATC), we use this framework to examine the evolution of market access conditions in the textile and clothing sectors. Our estimating framework takes advantage of the panel nature of trade data when calculating export tax equivalents while allowing for inequality constraints on the quota premium estimates. We also implement quadrature methods for calculating conÞdence intervals for our regression-based NTB measures.

Suggested Citation

  • Joseph Francois & Julia Woerz, 2008. "Nonlinear Panel Estimation Of Time-Varying Effects Of Import Quotas," IIDE Discussion Papers 20080501, Institue for International and Development Economics.
  • Handle: RePEc:lnz:wpaper:20050501

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    Cited by:

    1. Berner, Eike & Birg, Laura, 2012. "Retailers and Consumers: The pass-through of import price changes," Center for European, Governance and Economic Development Research Discussion Papers 133, University of Goettingen, Department of Economics.

    More about this item


    NTB; ICLS; quadrature; quotas; ATC; MFA; MPEC; gravity model;

    JEL classification:

    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • F13 - International Economics - - Trade - - - Trade Policy; International Trade Organizations

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