Which of the following countries is forbidden to impose export tariff by its constitution?

The decision by a nation to join a currency union is based on:

A) the size of the nation's GDP. B) the diversification of its industry and population. C) the cost of designing, printing, and managing a national currency. D) the costs of abandoning a national currency versus the benefits of a common currency.

Everything else equal, a depreciation of the dollar against the yuan:

A) will not affect the quantity of dollars demanded. B) will lead to a decrease in the quantity of dollars demanded. C) will lead to an increase in the quantity of dollars demanded. D) can either lead to an increase or a decrease in the quantity of dollars demanded depending on the magnitude of the depreciation.