根據Google的說法
這是一位叫做W. Stawowy所寫的文章
"Calculation Of Ad Valorem Equivalents Of Non-Ad Valorem Tariffs -
Methodology Notes"
有疑問的話其實可以找原文來看
(試著找找WTO或一些相關學術的database,應該有原文)
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Lesson 9:
"Nobody Knows the Suffering That Farmers (and Students) Do."
--George J. Stigler,How to Pass Examinations in Economics
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