Comparative Advantage and the Labor Theory of Value
重新解读李嘉图《原理》第七章的数值例子，指出其首要目的是说明劳动价值论不适用于国际交易，而比较优势只是推论；纠正了学界长期忽略这一命题导致的误解，并反驳了对该例子的主要批评。
With the famous numerical example of chapter 7 of the Principles (1817) David Ricardo intended to illustrate first and foremost the new proposition that his labor theory of value does not regulate the price of international transactions when the factors of production are immobile between countries. Unfortunately, later scholars have often omitted this proposition when referring to Ricardo's numerical example. Instead, they have highlighted only the comparative-advantage proposition, although Ricardo considered it as a corollary of the omitted proposition and therefore inextricably linked to it. This inexplicable omission has led to an incomplete understanding of the logical construction of Ricardo's numerical example, as well as to the misinterpretation of the four numbers as unitary labor costs. With an accurate understanding of Ricardo's numerical example and the logical relationship between the two propositions it meant to prove, it is relatively easy to refute the main objections that have been raised against the very same numerical example in the past. Moreover, it reaffirms the sustained relevance of Ricardo's two propositions as important insights for understanding the current process of economic globalization.