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Trade Restrictiveness Index of Non-Tariff Barriers Under the CES Preference

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  • Wisarut Suwanprasert

Abstract

The literature has suggested formulas for trade restrictiveness index of tariffs based on second-order approximation. This paper shows that in a special case of the constant-elasticity-of-substitution (CES) preference the trade restrictiveness index of non-tariff barriers can be derived explicitly without using approximation and is simply the weighted $\left (\sigma -1\right ) $(σ−1)th-power average of non-tariff barriers, where σ is the elasticity of substitution and the weights are the observed expenditure shares of imported goods. Numerical simulations show that the proposed index accurately measures the aggregate of non-tariff barriers while other indices have persistent measurement errors.

Suggested Citation

  • Wisarut Suwanprasert, 2020. "Trade Restrictiveness Index of Non-Tariff Barriers Under the CES Preference," International Economic Journal, Taylor & Francis Journals, vol. 34(1), pages 48-57, January.
    • Handle: RePEc:taf:intecj:v:34:y:2020:i:1:p:48-57
    DOI: 10.1080/10168737.2019.1671475
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    Cited by:

    1. Wisarut Suwanprasert, 2020. "The role of the most favored nation principle of the GATT/WTO in the New Trade model," Review of International Economics, Wiley Blackwell, vol. 28(3), pages 760-798, August.

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