The greatest disadvantages f barter system is the need for

The greatest disadvantage of a barter system is the need for double coincidence of wants. This means that in order for a transaction to occur, both parties involved must have something the other wants. For example, if a farmer has wheat and wants meat, they must find someone who has meat and wants wheat. This can be difficult, time-consuming, and inefficient, especially in larger economies where a wide range of goods and services are produced and exchanged. Therefore, the lack of double coincidence of wants makes barter system impractical and inefficient as a means of exchange.