5. As we've already seen, in Country 2 the opportunity cost of a computer is one burrito, while in Country 1 the opportunity cost of a computer is 3 burritos. The very best possible terms of trade Country 2 could ever hope Country 1 to agree to would be Country 1's opportunity cost, or to send 20 computers to Country 1 in exchange for 60 burritos.

   The worst terms of trade any country might conceivably accept are those equal to its own opportunity cost, or in the case of Country 2, 20 computers for 20 burritos.

Country 1 Country 2
Burr. Comp. Burr. Comp.
150 0 100 0
120 10 80 20
90 20 60 40
60 30 40 60
30 40 20 80
0 50 0 100


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