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Are Unit Export Values Correct Measures of the Exports' Quality?

Author

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  • Wojciech Grabowski
  • Krzysztof Szczygielski

Abstract

It has become common to measure the quality of exports using their unit export value (UEV). Applications of this method include studies of intra-industry trade (IIT) and analyses of industrial 'competitiveness'. This literature seems to assume that export quality and export price (the most natural interpretation of UEV) are not merely correlated but that they follow each other one-for-one. We put this assumption under scrutiny from both a theoretical and empirical point of view. In terms of theory, we formalize this assumption as a hypothesis of the proportionality of equilibrium prices and equilibrium qualities. We discuss several cases for which this hypothesis is theoretically doubtful (non-linear utility- and cost functions; strong and asymmetric horizontal product differentiation). We also suggest two methods of verifying the hypothesis for cases in which it cannot be easily rejected theoretically. These two methods are then applied to German imports in the period of 1994-2006. We find that the implications of the proportionality hypothesis are largely contradicted by the data.

Suggested Citation

  • Wojciech Grabowski & Krzysztof Szczygielski, 2009. "Are Unit Export Values Correct Measures of the Exports' Quality?," CASE Network Studies and Analyses 0393, CASE-Center for Social and Economic Research.
    • Handle: RePEc:sec:cnstan:0393
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    References listed on IDEAS

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    1. Jørgen Nielsen & Teit Lüthje, 2002. "Tests of the empirical classification of horizontal and vertical intra-industry trade," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 138(4), pages 587-604, December.
    2. Gabszewicz, Jean Jaskold & Thisse, Jacques-Francois, 1982. "Product Differentiation with Income Disparities: An Illustrative Model," Journal of Industrial Economics, Wiley Blackwell, vol. 31(1-2), pages 115-129, September.
    3. Gabszewicz, Jean Jaskold, et al, 1981. "International Trade in Differentiated Products," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 22(3), pages 527-534, October.
    4. Andrew Atkeson & Ariel Burstein, 2008. "Pricing-to-Market, Trade Costs, and International Relative Prices," American Economic Review, American Economic Association, vol. 98(5), pages 1998-2031, December.
    5. Brécard, Dorothée, 2010. "On production costs in vertical differentiation models," Economics Letters, Elsevier, vol. 109(3), pages 183-186, December.
    6. Hallak, Juan Carlos, 2006. "Product quality and the direction of trade," Journal of International Economics, Elsevier, vol. 68(1), pages 238-265, January.
    7. Avner Shaked & John Sutton, 1982. "Relaxing Price Competition Through Product Differentiation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 49(1), pages 3-13.
    8. Cremer, Helmuth & Thisse, Jacques-Francois, 1994. "Commodity Taxation in a Differentiated Oligopoly," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 35(3), pages 613-633, August.
    9. Abdul K. M. Azhar & Robert J. R. Elliott, 2006. "On the Measurement of Product Quality in Intra-Industry Trade," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 142(3), pages 476-495, October.
    10. Lionel Fontagné & Michael Freudenberg & Guillaume Gaulier, 2006. "A Systematic Decomposition of World Trade into Horizontal and Vertical IIT," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 142(3), pages 459-475, October.
    11. Juan Carlos Hallak & Peter K. Schott, 2011. "Estimating Cross-Country Differences in Product Quality," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 126(1), pages 417-474.
    12. Rosen, Sherwin, 1974. "Hedonic Prices and Implicit Markets: Product Differentiation in Pure Competition," Journal of Political Economy, University of Chicago Press, vol. 82(1), pages 34-55, Jan.-Feb..
    13. Uwe Dulleck & Neil Foster & Robert Stehrer & Julia Woerz, 2005. "Dimensions of quality upgrading," The Economics of Transition, The European Bank for Reconstruction and Development, vol. 13(1), pages 51-76, January.
    14. Flam, Harry & Helpman, Elhanan, 1987. "Vertical Product Differentiation and North-South Trade," American Economic Review, American Economic Association, vol. 77(5), pages 810-822, December.
    15. Shaked, Avner & Sutton, John, 1983. "Natural Oligopolies," Econometrica, Econometric Society, vol. 51(5), pages 1469-1483, September.
    16. Shaked, Avner & Sutton, John, 1987. "Product Differentiation and Industrial Structure," Journal of Industrial Economics, Wiley Blackwell, vol. 36(2), pages 131-146, December.
    17. Amemiya, Takeshi, 1984. "Tobit models: A survey," Journal of Econometrics, Elsevier, vol. 24(1-2), pages 3-61.
    18. Joakim Gullstrand, 2002. "Does the measurement of intra-industry trade matter?," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 138(2), pages 317-339, June.
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    Cited by:

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    3. Crespo, Nuno & Simões, Nádia, 2012. "On the measurement of a multidimensional concept of structural similarity," Economics Letters, Elsevier, vol. 116(1), pages 115-117.

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    More about this item

    Keywords

    export quality; unit export value; intra-industry trade; competitiveness;
    All these keywords.

    JEL classification:

    • F10 - International Economics - - Trade - - - General
    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade

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