Economists regard understanding the theory of comparative advantage as a test of professional competence. But are the incompetents – say, the average person who believes that buying cheap imports from China destroys Western jobs – always wrong?
经济学家认为，理解比较优势理论是专业能力的一项考验。但没有专业能力的人，比如认为购买来自中国的便宜进口品伤害了西方就业的普通人永远都是错的吗？