NO.PZ2018062003000183
问题如下：
According to the Heckscher–Ohlin model, the source of comparative advantage is each country`s:
选项：
A. relative amount of labor and capital.
B. natural resources.
C. labor productivity.
解释：
A is correct.
In the Heckscher–Ohlin model,countries with more capital available relative to labor available will have a comparative advantage in producing capital-intensive goods,while countries with more labor available relative to capital will have a comparative advantage in producing in labor-intensive goods.Thus,differences in the relative endowment of these factors are the source of a country`s comparative advantage.
考点：Heckscher–Ohlin model
解析：根据HO模型，一国资源禀赋的丰富程度会产生比较优势，比如一国劳动力资源丰富，那么该国就应该出口劳动密集型产品，发展劳动密集型产业。A选项正确。
为什么不选自然资源，选择labor？
