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Trade and Domestic Policies under Monopolistic Competition
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Trade and Domestic Policies under Monopolistic Competition

Author

Listed:
  • Fadinger, Harald
  • Campolmi, Alessia
  • Forlati, Chiara

Abstract

Should trade agreements also constrain domestic policies? We analyze this question from the perspective of models with monopolistic competition, potentially heterogeneous firms, and multiple sectors. We propose a welfare decomposition based on principles from welfare economics to show that, in a broad class of models, welfare changes induced by trade and domestic policies can be exactly decomposed into consumption-efficiency, production-efficiency and terms-of-trade effects. Using this decomposition, we compare trade agreements with different degrees of integration and show how their performance is affected by the interaction between firm heterogeneity and the relative importance of production efficiency versus terms-of-trade effects. We consider several forms of shallow trade agreements, modeled according to GATT-WTO rules, and show that they are not sufficient to achieve the full benefits of globalization that can be obtained with a deep trade agreement coordinating both trade and domestic policies. Moreover, the distortions arising from uncoordinated domestic policies under shallow free trade agreements increase when physical trade costs fall, thus raising the benefits of deep trade integration.

Suggested Citation

  • Fadinger, Harald & Campolmi, Alessia & Forlati, Chiara, 2018. "Trade and Domestic Policies under Monopolistic Competition," CEPR Discussion Papers 13219, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:13219
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    References listed on IDEAS

    as
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    2. Gene M. Grossman & Phillip McCalman & Robert W. Staiger, 2021. "The “New” Economics of Trade Agreements: From Trade Liberalization to Regulatory Convergence?," Econometrica, Econometric Society, vol. 89(1), pages 215-249, January.
    3. Gene M. Grossman & Elhanan Helpman, 2021. "When Tariffs Disrupt Global Supply Chains," Working Papers 2021-73, Princeton University. Economics Department..
    4. Arnaud Costinot & Andrés Rodríguez‐Clare & Iván Werning, 2020. "Micro to Macro: Optimal Trade Policy With Firm Heterogeneity," Econometrica, Econometric Society, vol. 88(6), pages 2739-2776, November.
    5. Nocco, Antonella & Ottaviano, Gianmarco I.P. & Salto, Matteo, 2019. "Geography, competition, and optimal multilateral trade policy," Journal of International Economics, Elsevier, vol. 120(C), pages 145-161.
    6. Luca Macedoni & Ariel Weinberger, 2021. "Quality Misallocation, Trade, and Regulations," CESifo Working Paper Series 9041, CESifo.
    7. Atsushi Tadokoro, 2020. "Tariff policies, variable markups, and within-sector missallocation," Discussion Papers in Economics and Business 20-16, Osaka University, Graduate School of Economics.

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    More about this item

    Keywords

    Heterogeneous firms; Trade policy; Domestic policy; Trade agreements; Terms of trade; Efficiency; Tariffs and subsidies;
    All these keywords.

    JEL classification:

    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • F13 - International Economics - - Trade - - - Trade Policy; International Trade Organizations
    • F42 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Policy Coordination and Transmission

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