Maximizing output by following the principle of comparative advantage requires

Using international asset trade, countries can

A) never really eliminate all risk. B) eliminate all risk. C) actually increase their risk in some cases. D) eliminate all their risk except for emerging markets. E) never really diversify their holdings.

Data on the unemployment rate in the U.S. since 1960 show that the unemployment rate sometimes is close to zero

a. True b. False Indicate whether the statement is true or false