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The Effect Of Armington Structure On Welfare Evaluations In Global Cge-Models


  • Kerkela, Leena


In this paper, the welfare results in trade liberalisation scenarios in global CGE models (like GTAP) are analysed. The default modeling strategy in trade is the Armington assumption with bilateral trade flows in industries. The negative terms of trade effects that often dominate the negative welfare outcome in simulation experiments are decomposed to imports and exports price effects. The numerical examples show that even in unilateral liberalisation with decreasing import tariffs, the welfare effects are dominated by domestic price level changes that also drive the exports prices. The numerical examples are built around simple GTAP tariff cut experiments with 3x3 country and commodity aggregation. The inherent feature in this type of models is that they support arguments for unilateral market access, like preferences, at the expense of multilateral trade liberalisation.

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  • Kerkela, Leena, 2008. "The Effect Of Armington Structure On Welfare Evaluations In Global Cge-Models," 107th Seminar, January 30-February 1, 2008, Sevilla, Spain 6397, European Association of Agricultural Economists.
  • Handle: RePEc:ags:eaa107:6397

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    References listed on IDEAS

    1. Donald R. Davis, 1996. "Trade Liberalization and Income Distribution," Harvard Institute of Economic Research Working Papers 1769, Harvard - Institute of Economic Research.
    2. Brown, Drusilla K., 1987. "Tariffs, the terms of trade, and national product differentiation," Journal of Policy Modeling, Elsevier, vol. 9(3), pages 503-526.
    3. Hertel, Thomas, 1997. "Global Trade Analysis: Modeling and applications," GTAP Books, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University, number 7685.
    4. Arvind Panagariya, 2000. "Preferential Trade Liberalization: The Traditional Theory and New Developments," Journal of Economic Literature, American Economic Association, vol. 38(2), pages 287-331, June.
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    CGE Modeling; trade liberalisation; terms of trade; International Relations/Trade; Research Methods/ Statistical Methods;

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