Money is any marketable good or token used by a society as a medium of exchange, store of value and unit of account. Since the needs arise naturally, societies organically create one or several money objects when none exists. In other cases, a central authority creates a single money object and compels its use; this is more frequently the case in modern societies with paper money.
Money is one of the most central topics studied in economics and forms its most cogent link to finance.
The amount of money in an economy affects inflation and interest rates and hence has profound effects. The monetary policy of government aims to manage money, inflation and interest to affect output and employment.
A monetary crisis can have very significant economic effects, particularly if it leads to monetary failure and the adoption of a much less efficient barter economy. This happened in Russia (for instance) during the 1990s.
Modern economics also faces a difficulty in deciding what exactly 'is' money.
The value of money emerges in no small part from its utility as a medium of exchange, however its utility as a medium of exchange depends on it having recognized market value. Hence these two aspects of money are interdependent.
Commodity money was the first form of money to emerge. Under a commodity money system, the object used as money has inherent value. It is usually adopted to simplify transactions in a barter economy; thus it functions first as a medium of exchange. It quickly begins functioning as a store of value, since holders of perishable goods can easily convert them into durable money. In modern economies, commodity money has also been used as a unit of account. Gold-backed currency notes are a common form of commodity money.
Fiat money is a relatively modern invention. A central authority (government) creates a new money object that has negligible inherent value. The widespread acceptance of fiat money is most frequently enhanced by the central authority mandating the money's acceptance under penalty of law and demanding this money in payment of taxes or tribute. At various times in history government issued promisory notes have later become fiat currencies (US dollar) and fiat currencies have gone on to become a form of commodity currency.
When using money anonymously, the most common methods are money cash (either coin or banknotes), stored-value cards or gold. When using money substitutes in such a way as to leave a financial record of the transaction, the most common methods are checks, debit cards, credit cards, and electronic money. Also you can make surveys for cash. Concerning money cash, it usually refers to money in the form of liquid currency, such as bills or coins.
Money cash comes from kachu in the Indian language Tamil. Or commonly 'a' persons surname; i.e. (Forename) Cash.
The usage of money cash is following, Cash can also refer to checks, money orders, cashier's checks, bank drafts, or traveler's checks. In all these forms, the term indicates the most liquid form of assets, which have a fixed value and can be easily converted to currency. "Cash pay" (as opposed to, e.g., stock options) would almost always be in the form of a check or bank deposit ? but the employee can easily get cash per se from the bank.