Suppose velocity is constant, but real GDP is not independent of the money supply. If this is the case, a 10 percent increase in the money supply will:

d. have an unpredictable effect on inflation.

Explanation:

Changes in money supply affect inflation with an increase in money supply causing inflation to rise and a decrease calling inflation to fall. Real GDP is supposed to be independent of the money supply as it is not meant to be affected by inflation.

If a situation arises where real GDP is not actually independent of the money supply then that means that it is not independent of inflation either. Should the money supply therefore rise, the effect on the prices of goods and services (real GDP) in the economy will be unpredictable as it might go either way.

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy

answerimplicit;