Which one of the following would be considered to be a risk management technique used by farmers?

Suppose the Chinese central bank wants to keep the exchange rate of its currency value constant over time. An increase in the demand for Chinese goods by American residents will lead the Chinese central bank to

A) coordinate with the U.S. central bank in order to increase the supply of the U.S. dollar in the foreign exchange market. B) increase the demand for the Chinese currency in the foreign exchange market. C) use its dollar reserves to buy the Chinese currency in the foreign exchange market. D) sell the Chinese currency in exchange for U.S. dollars in the foreign exchange market.

For a monopolist

A) marginal revenue is less than price. B) marginal revenue equals price. C) marginal revenue is greater than price. D) marginal revenue equals average revenue.