Answer: If Pineland were to allow trade, it would import fish.
Step-by-step explanation:
From the question, we are told that in Pineland, one can buy 1 pound of fish for 2 pounds of pineapples while in other countries, one can buy 1 pound of fish for 1.5 pounds of pineapples.
Based on the above scenario, we can denote that buying of fish from other countries is cheaper but since there's no international trade, this isn't possible. Based on the cheapness, if Pineland were to allow trade, it would import fish.