Which of the following is NOT generally recognized as a channel for monetary policy?

The "yardstick" people use to post prices and record debts is called

a. a medium of exchange. b. a unit of account. c. a store of value. d. liquidity.

A price index is:

A. a comparison of the current price of a market basket to a fixed point of reference. B. a comparison of real GDP in one period relative to another. C. the cost of a market basket of goods and services in a base period divided by the cost of the same market basket in another period. D. a ratio of real GDP to nominal GDP.