Answer:-
In economics, barter is the direct exchange of goods and services without using money. It’s one of the oldest forms of trade, used before currency existed. In a barter system, two parties negotiate and trade items they each need—for example, exchanging wheat for eggs. While it can work in simple economies or small communities, barter has limitations. It requires a "double coincidence of wants," meaning both parties must want what the other has. This inefficiency is why money eventually replaced barter as a more convenient and standardized medium of exchange in modern economic systems.
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