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Import demand with product differentiation: disaggregated estimation of italian sectoral elasticities


  • Stefano Chiarlone


This paper focuses on the estimation of sectoral import demand for Italy with European Union Countries, Japan, Canada and the United States. A strong evidence of two-way flows and product differentiation is an accepted regularity of the international trade. Given that, we have tried to include considerations of differentiation in the empirical analysis. Starting from the very disaggregated bilateral trade data (5 digit Sitc Rev. 3) we have classified every and each flow as homogeneous, quality differentiated and non-quality differentiated, using the methodologies developed by Abd-El-Rahman (1986) and Freudenberg and Müller (1992). Then we have included this classification in our econometric estimates of the sectoral import demands. That should increase precision of the estimate, because allow to divide homogeneous from not homogeneous goods in the estimation procedures. Our results suggest a dynamic reaction of italian imports in many sectors, pointing to possible competitive problems for the firms and external balance constraint for the country.

Suggested Citation

  • Stefano Chiarlone, 2000. "Import demand with product differentiation: disaggregated estimation of italian sectoral elasticities," LIUC Papers in Economics 75, Cattaneo University (LIUC).
  • Handle: RePEc:liu:liucec:75

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    References listed on IDEAS

    1. Khan, Mohsm S. & Ross, Knud Z., 1977. "The functional form of the aggregate import demand equation," Journal of International Economics, Elsevier, vol. 7(2), pages 149-160, May.
    2. Thursby, Jerry G & Thursby, Marie C, 1984. "How Reliable Are Simple, Single Equation Specifications of Import Demand?," The Review of Economics and Statistics, MIT Press, vol. 66(1), pages 120-128, February.
    3. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
    4. David Greenaway & Robert Hine & Chris Milner, 1994. "Country-specific factors and the pattern of horizontal and vertical intra-industry trade in the UK," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 130(1), pages 77-100, March.
    5. Greenaway, David & Torstensson, Johan, 2000. "Economic Geography, Comparative Advantage and Trade within Industries: Evidence from the OECD," Journal of Economic Integration, Center for Economic Integration, Sejong University, vol. 15, pages 260-280.
    6. Peter Hooper & Karen H. Johnson & Jaime R. Marquez, 1998. "Trade elasticities for G-7 countries," International Finance Discussion Papers 609, Board of Governors of the Federal Reserve System (U.S.).
    7. Goldstein, Morris & Khan, Mohsin S., 1985. "Income and price effects in foreign trade," Handbook of International Economics,in: R. W. Jones & P. B. Kenen (ed.), Handbook of International Economics, edition 1, volume 2, chapter 20, pages 1041-1105 Elsevier.
    8. White, Halbert, 1980. "A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity," Econometrica, Econometric Society, vol. 48(4), pages 817-838, May.
    9. Lancaster, Kelvin, 1980. "Intra-industry trade under perfect monopolistic competition," Journal of International Economics, Elsevier, vol. 10(2), pages 151-175, May.
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    Cited by:

    1. Alberto Bagnai & Christian Alexander Mongeau Ospina, 2014. "The a/simmetrie annual macroeconometric model of the Italian economy: structure and properties," a/ Working Papers Series 1405, Italian Association for the Study of Economic Asymmetries, Rome (Italy).

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    JEL classification:

    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade

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