What is the relationship between changes in the money supply and changes in the reserve requirement

Reserve requirements have an indirect relationship with the money supply

Explanation:

Reserve requirements are a portion of customer deposits a bank is supposed to keep in its custody at all times. The federal reserve gives guidance on the proposition of reserve requirement that a bank should hold. Reserve requirement is usually a percentage of the deposits. Banks cannot loan out their reserves.

Reserve requirements have an inverse relationship with the money supply in the economy. If the reserve requirement is high, banks will have a lower proposition of customer deposits to loan out. When reserve requirement is low, banks will have a bigger proposition of deposits to loan out, thereby increasing the money supply in the economy.