Microeconomics 18th Edition by Campbell McConnell, Stanley Brue, Sean Flynn

Exercise 12

Suppose that the comparative-cost ratios of two products-baby formula and tuna fish-are as follows in the hypothetical nations of Canswicki and Tunata.
Canswicki: 1 can baby formula = 2 cans tuna fish
Tunata: 1 can baby formula = 4 cans tuna fish
Inwhat product should each nation specialize Explain why terms of trade of 1 can baby formula = 2-1/2 cans tuna fish would be acceptable to both nations.