Certificates of deposit, or CDs, are bank time deposits that pay a fixed interest rate if you leave the money in for a set term. In Principles of Macroeconomics, they show up in the M2 money supply, not M1.
Certificates of deposit are time deposits in Principles of Macroeconomics. That means you agree to keep your money in the bank or credit union for a fixed period, and in return the institution usually pays a higher, fixed interest rate than a regular savings account.
The big idea is liquidity. A CD is less liquid than checking account money because you cannot treat it like everyday spending cash without a cost. If you pull the money out before the maturity date, you usually pay an early withdrawal penalty that can wipe out part or all of the interest you earned.
Macroeconomics uses CDs to show how money is classified. They are not included in M1 because M1 focuses on the most liquid forms of money, like currency and checkable deposits. CDs are included in M2 because they are still close to money, even if you cannot spend them immediately.
The maturity or term can range from a few months to several years. Longer terms often pay higher interest because you are giving up access to your money for longer. That tradeoff is why CDs are often described as low-risk savings tools rather than spending money.
A useful way to think about a CD is that it sits between cash and an investment. It is safer and more predictable than the stock market, and it usually pays more than a basic savings account, but it is not built for quick transactions. That middle position is exactly why CDs matter when macro classes compare M1, M2, and liquidity.
Certificates of deposit matter because they help you see how economists measure the money supply by liquidity, not just by dollar amount. A dollar in a CD is still part of the financial system, but it is not as spendable as cash in your wallet or money in a checking account.
This term also shows how the Federal Reserve thinks about the economy. When macroeconomics asks what counts as money, the answer depends on how quickly an asset can be turned into spending power. CDs are a clean example of a near-money asset that belongs in M2 but not M1.
You will also see CDs when comparing saving choices. They show the tradeoff between higher interest and lower access. That same tradeoff connects to broader ideas like how households store wealth, how banks attract deposits, and why interest rates matter for saving behavior.
If you can place CDs correctly inside M2 and explain why they are less liquid than checkable deposits, you are already doing the kind of classification work macro classes ask for.
Keep studying Principles of Macroeconomics Unit 14
Visual cheatsheet
view galleryM1
M1 is the narrow money measure, so it includes the most liquid forms of money, like currency and checkable deposits. CDs do not belong here because you cannot use them for everyday purchases without breaking the deposit agreement. When a question asks why something is excluded from M1, liquidity is the first thing to check.
M2
M2 is broader than M1 and includes assets that are still fairly close to cash. Certificates of deposit fit here because they can be converted into spendable money, even if not instantly or without penalty. In macro problems, M2 helps show the amount of money households can access more slowly than cash.
Time Deposit
A CD is a time deposit, which means the bank holds your money for a set period before you can withdraw it freely. This term explains the contract behind the higher interest rate. If you see a question about maturity dates or early withdrawal penalties, you are probably dealing with a time deposit.
Near Money
Near money refers to assets that are not cash but can be turned into cash relatively quickly. CDs are a classic example because they are safe and close to spending power, but not fully liquid. This connection helps explain why macroeconomics uses more than one money measure.
A quiz item or short-answer question will usually ask you to sort a CD into the correct money measure or explain why it is not part of M1. The move you make is to link the term to liquidity, then decide whether it belongs in M1, M2, or neither. If the prompt gives a bank account example, look for clues like fixed maturity, interest rate, and early withdrawal penalties.
In a graph or multiple-choice question, CDs often appear as part of the broader money supply rather than as everyday transaction money. The safest response is to remember that they are time deposits, so they count in M2. If you can explain the tradeoff between higher interest and lower access, you have the concept down.
Savings deposits and certificates of deposit both earn interest and are less liquid than checking accounts, so they can look similar at first. The difference is that a CD locks your money in for a fixed term and usually pays a fixed rate, while a savings deposit is generally more flexible and can be withdrawn more easily.
Certificates of deposit are bank time deposits that pay a fixed interest rate if you keep the money in for a set period.
A CD is less liquid than a checking account or cash because early withdrawals usually bring a penalty.
In macroeconomics, CDs are included in M2 but not M1 because they are not immediate spending money.
Longer terms often come with higher interest rates since you are giving up access to your money for longer.
CDs are a low-risk way to save, but they are better for planned saving than for money you might need right away.
A certificate of deposit, or CD, is a time deposit offered by a bank or credit union that pays a fixed interest rate for a set term. In macroeconomics, it matters because it is part of M2, not M1, since it is not instantly spendable like cash or checking deposits.
CDs are not in M1 because M1 is reserved for the most liquid money, the kind you can use right away for transactions. A CD ties up your funds until maturity, and pulling the money out early usually means a penalty, so it is not treated as immediate spending money.
Yes. CDs are included in M2 because they are close enough to money that they can be converted into cash, even though they are not as liquid as checking account balances. That makes them a classic example of near money.
A regular savings account is usually more flexible, while a CD requires you to leave the money untouched for a specific term. The CD often pays a higher interest rate in exchange for that restriction, which is why macro classes use it to show the tradeoff between liquidity and return.