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Quality Differentiation, Comparative Advantage, and International Specialization Across Products

Author

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  • Ulrich Schetter

    (Center for International Development at Harvard University)

Abstract

We introduce quality differentiation into a Ricardian model of international trade. We show that (1) quality differentiation allows industrialized countries to be active across the full board of products, complex and simple ones, while developing countries systematically specialize in simple products, in line with novel stylized facts. (2) Quality differentiation may thus help to explain why richer countries tend to be more diversified and why, increasingly over time, rich and poor countries tend to export the same products. (3) Quality differentiation implies that the gains from inter-product trade mostly accrue to developing countries. (4) Guided by our theory, we use a censored regression model to estimate the link between a country’s GDP per capita and its export quality. We find a much stronger relationship than when using OLS, in line with our theory.

Suggested Citation

  • Ulrich Schetter, 2020. "Quality Differentiation, Comparative Advantage, and International Specialization Across Products," CID Working Papers 126a, Center for International Development at Harvard University.
    • Handle: RePEc:cid:wpfacu:126a
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    File URL: https://growthlab.cid.harvard.edu/files/growthlab/files/2020-04-cid-fellows-wp-126-quality-differentiation.pdf
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    References listed on IDEAS

    as
    1. Rauch, James E., 1999. "Networks versus markets in international trade," Journal of International Economics, Elsevier, vol. 48(1), pages 7-35, June.
    2. Arnaud Costinot & Dave Donaldson & Ivana Komunjer, 2012. "What Goods Do Countries Trade? A Quantitative Exploration of Ricardo's Ideas," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(2), pages 581-608.
    3. Jonathan Eaton & Samuel Kortum, 2002. "Technology, Geography, and Trade," Econometrica, Econometric Society, vol. 70(5), pages 1741-1779, September.
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    Cited by:

    1. Balland, Pierre-Alexandre & Broekel, Tom & Diodato, Dario & Giuliani, Elisa & Hausmann, Ricardo & O'Clery, Neave & Rigby, David, 2022. "The new paradigm of economic complexity," Research Policy, Elsevier, vol. 51(3).
    2. Dario Diodato & Ricardo Hausmann & Ulrich Schetter, 2022. "A Simple Theory of Economic Development at the Extensive Industry Margin," CID Working Papers 416, Center for International Development at Harvard University.
    3. Balland, Pierre-Alexandre & Broekel, Tom & Diodato, Dario & Giuliani, Elisa & Hausmann, Ricardo & O'Clery, Neave & Rigby, David, 2022. "Reprint of The new paradigm of economic complexity," Research Policy, Elsevier, vol. 51(8).
    4. Ulrich Schetter, 2019. "A Structural Ranking of Economic Complexity," CID Working Papers 119a, Center for International Development at Harvard University.
    5. Gersbach, Hans & Schetter, Ulrich & Schmassmann, Samuel, 2018. "From Local to Global: A Unified Theory of Public Basic Research," Economics Working Paper Series 1816, University of St. Gallen, School of Economics and Political Science.
    6. Ulrich Schetter & Adrian Jäggi & Maik T. Schneider, 2021. "Inequality, Openness, and Growth through Creative Destruction," CID Working Papers 130a, Center for International Development at Harvard University.

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    More about this item

    Keywords

    Comparative Advantage; Export Diversification; Nestedness; Product Complexity; Quality Differentiation;
    All these keywords.

    JEL classification:

    • F10 - International Economics - - Trade - - - General
    • F11 - International Economics - - Trade - - - Neoclassical Models of Trade
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade

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