When economists state that "money is neutral," they mean that the: money supply does not affect real GDP or unemployment. money supply does not affect inflation or nominal GDP. overall price level has no effect on consumers; only relative prices do. overall price level has no effect on people's inflation expectations.

They mean that the money supply does not affect real GDP or unemployment.

Explanation:

The neutrality of money is based on the idea that a change in the stock of money will only affect the nominal variables in the economy such as exchange rates, prices and wages, without affecting the real variables, which include; employment, real GDP, and real consumption. What this means is that the amount of money that is printed by the central banks can impact prices and wages but cannot impact the output or structure of the economy.