Answer: it’s a substitute for bartering.
Explanation: Bartering was the exchange of goods and services for goods and services. Money transaction system eliminates the problem of double coincidence of wants, it is also a faster mode of payment, Money is also used as medium of exchange. In barter system goods are exchanged against goods so every item does not have individual value and needs double coincidence of wants. A currency system manages an agreed-upon form of paper or coin money as an exchange system rather than immediately trading goods and services through bartering, money is related to battering because it’s a substitute for battering.