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The velocity of transactions in an economy has been increasing rapidly for the past seven years. Over the same time period, the economy has experienced minimal growth in real output. According to the equation of exchange, inflation over the last seven years has:

A increased more than the growth in the money supply.

The equation of exchange is MV = PY. If velocity (V) is increasing faster than real output (Y), inflation (P) would have to be increasing faster than the money supply (M) to keep the equation in balance.