- ample reserves
 - when banks are holding an amount of reserves significantly above the minimum required amount; generally a choice made by banks during and after the Great Recession
 
- asset
 - item of value that a firm or an individual owns
 
- asset–liability time mismatch
 - customers can withdraw a bank’s liabilities in the short term while customers repay its assets in the long term
 
- balance sheet
 - an accounting tool that lists assets and liabilities
 
- bank capital
 - a bank’s net worth
 
- barter
 - literally, trading one good or service for another, without using money
 
- coins and currency in circulation
 - the coins and bills that circulate in an economy that are not held by the U.S Treasury, at the Federal Reserve Bank, or in bank vaults
 
- commodity money
 - an item that is used as money, but which also has value from its use as something other than money
 
- commodity-backed currencies
 - dollar bills or other currencies with values backed up by gold or another commodity
 
- credit card
 - immediately transfers money from the credit card company’s checking account to the seller, and at the end of the month the user owes the money to the credit card company; a credit card is a short-term loan
 
- debit card
 - like a check, is an instruction to the user’s bank to transfer money directly and immediately from your bank account to the seller
 
- demand deposit
 - checkable deposit in banks that is available by making a cash withdrawal or writing a check
 
- depository institution
 - institution that accepts money deposits and then uses these to make loans
 
- diversify
 - making loans or investments with a variety of firms, to reduce the risk of being adversely affected by events at one or a few firms
 
- double coincidence of wants
 - a situation in which two people each want some good or service that the other person can provide
 
- fiat money
 - has no intrinsic value, but is declared by a government to be the country's legal tender
 
- financial intermediary
 - an institution that operates between a saver with financial assets to invest and an entity who will borrow those assets and pay a rate of return
 
- liability
 - any amount or debt that a firm or an individual owes
 
- limited reserves
 - when banks are holding an amount of reserves that are at or only slightly above the minimum required amount; generally a choice made by banks before the Great Recession
 
- M1 money supply
 - a narrow definition of the money supply that includes currency and checking accounts in banks, and to a lesser degree, traveler’s checks.
 
- M2 money supply
 - a definition of the money supply that includes everything in M1, but also adds savings deposits, money market funds, and certificates of deposit
 
- medium of exchange
 - whatever is widely accepted as a method of payment
 
- money
 - whatever serves society in four functions: as a medium of exchange, a store of value, a unit of account, and a standard of deferred payment.
 
- money market fund
 - the deposits of many investors are pooled together and invested in a safe way like short-term government bonds
 
- money multiplier formula
 - formula used to determine the total amount of M1 money supply created in the banking system; equal to 1/reserve ratio
 
- net worth
 - the excess of the asset value over and above the amount of the liability; total assets minus total liabilities
 
- payment system
 - helps an economy exchange goods and services for money or other financial assets
 
- reserves
 - funds that a bank keeps on hand and that it does not loan out or invest in bonds
 
- savings deposit
 - bank account where you cannot withdraw money by writing a check, but can withdraw the money at a bank—or can transfer it easily to a checking account
 
- smart card
 - stores a certain value of money on a card and then one can use the card to make purchases
 
- standard of deferred payment
 - money must also be acceptable to make purchases today that will be paid in the future
 
- store of value
 - something that serves as a way of preserving economic value that one can spend or consume in the future
 
- T-account
 - a balance sheet with a two-column format, with the T-shape formed by the vertical line down the middle and the horizontal line under the column headings for “Assets” and “Liabilities”
 
- time deposit
 - account that the depositor has committed to leaving in the bank for a certain period of time, in exchange for a higher rate of interest; also called certificate of deposit
 
- transaction costs
 - the costs associated with finding a lender or a borrower for money
 
- unit of account
 - the common way in which we measure market values in an economy