Answer:
The answer is below
Explanation:
1) Opportunity cost of producing rice:
For country A, opportunity cost of producing rice = 100 pounds of broccoli / 200 pounds of rice = 1/2 pounds of broccoli
For country B, opportunity cost of producing rice = 120 pounds of broccoli / 160 pounds of rice = 3/4 pounds of broccoli
Opportunity cost of producing broccoli:
For country A, opportunity cost of producing broccoli = 200 pounds of rice / 100 pounds of broccoli = 2 pounds of rice
For country B, opportunity cost of producing broccoli = 160 pounds of rice / 120 pounds of broccoli = 4/3 pounds of rice
2) The country with comparative advantage is the country with lower opportunity cost.
Country A has a comparative in producing rice (1/2 pounds of broccoli < 3/4 pounds of broccoli)
Country B has a comparative in producing broccoli (4/3 pounds of rice < 2 pounds of rice)
3) For better off trade, the price should lie between two different opportunity costs.
Therefore, the price per pound of broccoli in terms of pounds of rice should lie between 4/3 and 2 pounds of rice