Macroeconomics 13th Edition by William Baumol ,Alan Blinder

Exercise 7

Country A has a mercantilist government that believes it is always best to export more than it imports. As a consequence, it exports more to Country B every year than it imports from Country B. After 100 years of this arrangement, both countries are destroyed in an earthquake. What were the advantages or disadvantages of the surplus to Country A To Country B