How to Calculate M1 Money Supply
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The M1 money supply is a key economic indicator that measures the total amount of physical currency and demand deposits in circulation. Calculating M1 helps economists and financial analysts understand the liquidity of the money market and assess economic conditions.
What is M1 Money Supply?
M1 money supply refers to the most liquid form of money in an economy. It includes:
- Currency held by the public (physical cash)
- Demand deposits (checking accounts)
- Other checkable deposits (savings accounts that can be accessed with a check)
M1 is considered the most liquid measure of money because it represents cash and highly accessible deposits that can be quickly converted into spending power.
Key Point
M1 does not include savings deposits, money market mutual funds, or time deposits that cannot be accessed immediately.
How to Calculate M1 Money Supply
The M1 money supply is calculated using the following formula:
M1 Money Supply Formula
M1 = Currency + Demand Deposits + Other Checkable Deposits
Where:
- Currency - Physical cash in circulation
- Demand Deposits - Checking account balances
- Other Checkable Deposits - Savings accounts that can be accessed with a check
The Federal Reserve calculates M1 monthly based on data from banks and financial institutions. The calculation involves summing all these components across the economy.
M1 vs. M2 Money Supply
M1 and M2 are both measures of money supply, but they differ in scope and liquidity:
| Measure | Components | Liquidity |
|---|---|---|
| M1 | Currency, Demand Deposits, Other Checkable Deposits | Highly liquid (can be spent immediately) |
| M2 | M1 + Savings Deposits + Small Time Deposits + Money Market Mutual Funds | Less liquid (some components require time to access) |
M2 includes less liquid assets that are not immediately available for spending, making it a broader measure of the money supply.
Example Calculation
Let's calculate M1 for a hypothetical economy:
- Currency: $500 billion
- Demand Deposits: $2,000 billion
- Other Checkable Deposits: $300 billion
Using the formula:
Example Calculation
M1 = $500B + $2,000B + $300B = $2,800 billion
This means the total M1 money supply for this economy is $2,800 billion.
FAQ
What is the difference between M1 and M2?
M1 includes only the most liquid forms of money (currency and highly accessible deposits), while M2 includes less liquid assets like savings deposits and money market funds.
Who calculates M1 money supply?
The Federal Reserve calculates M1 monthly based on data from banks and financial institutions.
Why is M1 important?
M1 is important because it measures the most liquid money in circulation, which directly impacts consumer spending and economic activity.
How often is M1 updated?
M1 is updated monthly by the Federal Reserve based on the latest financial data.