The term "Money Supply" refers to the total amount of money available in an economy at a specific time. It includes various forms of money, such as cash, coins, and balances held in bank accounts. Economists often measure money supply using different categories, like M1 for liquid assets and M2 for savings and time deposits. Changes in the money supply can influence economic activity, affecting inflation and interest rates. Central banks, like the Federal Reserve, manage the money supply through monetary policy tools, such as open market operations and interest rate adjustments, to promote economic stability and growth.