这题

问题如下：

Suppose there are three countries produce socks and shoes with output per worker per day in each country as follows:

Which country has the greatest comparative advantage in the production of socks?

选项：

Russia.

Chile.

India.

解释：

C is correct.

Compared with its trading partners, India has the lowest opportunity cost to produce an extra sock.The opportunity cost is 2 shoes per stock in India, 3 shoes per stock in Russia, and 4 shoes per stock in Chile.

考点：比较优势

解析：印度的生产袜子的机会成本是2双鞋，俄国的机会成本是3双鞋，智利的机会成本是4双鞋。所以印度的机会成本最低，最优比较优势，它应该生产袜子。