Money is anything that is generally accepted as payment for goods and services and repayment of debts. The main uses of money are as a medium of exchange, a unit of account, and a store of value. Some authors explicitly require money to be a standard of deferred payment. Money includes both currency, particularly the many circulating currencies with legal tender status, and various forms of financial deposit accounts, such as demand deposits, savings accounts, and certificates of deposit. In modern economies, currency is the smallest component of the money supply.
Money is not the same as value, the latter being the basic element in economics. Money is central to the study of economics and forms its most cogent link to finance. The absence of money causes a market economy to be inefficient because it requires a coincidence of wants between traders, and an agreement that these needs are of equal value, before a barter exchange can occur. The use of money is thought to encourage trade and the division of labour. The word "money" is believed to originate from a temple located on Capitoline, one of Rome's seven hills. On one of Capitoline's peaks, the temple of Juno Moneta stood where the mint of Ancient Rome was located.