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National Security and International Trade


  • Heejoon Kang
  • Michele Fratianni


The September 11, 2001 terrorist attack to the twin towers and ensuing heightened national security measures worldwide, but particularly in the United States, are modeled to be equivalent to a thickening of trade barriers in international trade. By estimating a gravity model with a stochastic frontier technique, an effective trade barrier is quantified by “trade inefficiency,†that is by the difference between potential trade and actual trade; this is done both for country pairs and for a given country vis-à -vis all of its trading partners. The impact of higher security levels on trade is examined through hypothetical increases in border thickness, for given values of control variables

Suggested Citation

  • Heejoon Kang & Michele Fratianni, 2004. "National Security and International Trade," Econometric Society 2004 Far Eastern Meetings 744, Econometric Society.
  • Handle: RePEc:ecm:feam04:744

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    More about this item


    Gravity model; political relations; stochastic frontier estimation; trade barriers;

    JEL classification:

    • F13 - International Economics - - Trade - - - Trade Policy; International Trade Organizations
    • F02 - International Economics - - General - - - International Economic Order and Integration
    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models


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