The following table shows the production of wheat (bushels per hour) and cloth (yards per hour) for Country A …

Question

The following table shows the production of wheat (bushels per hour) and cloth (yards per hour) for Country A and Country B.

Country A: Wheat 12, Cloth 6
Country B: Wheat 6, Cloth 18

In order for both countries to gain from trade, one bushel of wheat must trade for_____.

Accepted Answer

正確答案為 C。A國機會成本：每產1蒲式耳小麥放棄6/12=1/2碼布，故A國小麥內部相對價格=1/2碼布。B國機會成本：每產1蒲式耳小麥放棄18/6=3碼布，故貿易條件必須在1/2到3之間，兩國才都能獲益。

The following table shows the production of wheat (bushels per hour) and cloth (yards per hour) for Country A and Country B. Country A: Wheat 12, Cloth 6 Country B: Wheat 6, Cloth 18 In order for both countries to gain from trade, one bushel of wheat must trade for_____.