M2 is a broader measure of money supply than M1, including not only physical currency and checking accounts, but also savings deposits, money market securities, and time deposits such as certificates of deposit (CDs). M2 reflects the total money available in an economy for spending and investment.
Components of M2
M2 consists of:
- M1: Physical currency and checking deposits (the most liquid portion).
- Savings deposits: Account balances that require notice to withdraw but can be converted quickly.
- Money market securities: Short-term securities such as treasury bills.
- Time deposits: Certificates of deposit (CDs) and similar instruments with fixed maturity dates.
M2 as an economic indicator
The growth rate of M2 is closely watched as a barometer of economic health. Rapid M2 growth can signal inflationary pressures, while slower growth may indicate economic contraction. Central banks adjust monetary policy based on M2 trends, which in turn influences currency values.
Differences from M1 and M3
| Measure | Components | Liquidity |
|---|---|---|
| M1 | Currency, checking deposits | Very high |
| M2 | M1 + savings, CDs, money markets | High to moderate |
| M3 | M2 + large deposits, institutional funds | Moderate to low |
