Refer to the accompanying table below. According to the Cost-Benefit Principle, how many units of this activity should be carried out?Units of ActivityTotal CostTotal Benefit0$0$01$30$1002$40$1603$60$1904$100$2105$150$2206$210$225 

What is the most common measure of a firm's capital stock, and why is it not the most important to focus on?

What will be an ideal response?

Suppose the currency price of the U.S. dollar in terms of the Japanese yen starts to fall. To prevent that from occurring, the U.S. central bank should

A) use U.S. dollars to buy Japanese goods. B) use yen reserves to buy U.S. dollars in the foreign exchange market. C) sell U.S. dollars in the foreign exchange market in exchange for yen. D) buy both U.S. dollars and yen in the foreign exchange market.