Why do changes in money supply not affect GNP?

Answer 1

According to the Federal Reserve the money supply consists of safe liquid assets such as U.S. currency, checking, and savings accounts that businesses and households can use to pay bills or purchase items. The money supply can be measured in different ways depending on which monetary aggregates are included in the calculation. A large increase in the money supply has been linked to an increase in the price level and growth in nominal gross domestic product which is not price adjusted for inflation. Changes in the money supply have not had a close correlation to changes in gross domestic product over the past several decades which is why the Federal Reserve has diminished the importance of changes in the money supply as it relates to conducting monetary policy.