What is the opportunity cost of holding money?

A speculator becomes the fixed-rate payer in an interest rate swap. He expects that

A) long rates rise. B) long rates fall. C) short rates rise. D) short rates fall.

If the tax on each Snicker's bar is 10 percent of its price, than that tax is a

a. sales tax b. unit tax c. corporate tax d. progressive tax e. estate tax