An inverse measure of trade costs between two countries, i, j, defined as [XijXji/XiiXjj]1/2, where Xij is exports from i to j and Xii is sales by country i to itself. Used by Head and Ries (2001) and named by Eaton et al. (2011).

yangyuzhou 发表于 2015-6-29 11:32
根据Deardorffs' Glossary 个人主要上的介绍：

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