This is one of those cases where the definition of a particular word, in this case "barter", is crucial.
If barter means the direct exchange of goods and services without a medium of exchange, the more common use, then by and large, the invention of money supplemented the barter system by providing a nonperishable medium of exchange. Money provided an effective way to avoid the problem of one party being unable to provide a good or service that the other party wanted.
If barter simply refers to exchanging, while many people think the bartering system ended when money was invented, people can still barter and pay with money. Money gives a nonperishable item to be bartered with.
they had a barter system. they didn't have money, just trade goods,
money
The invention of money supplemented the barter system by providing a nonperishable medium of exchange.
Sumerians
Barter system
Barter
they had a barter system. they didn't have money, just trade goods,
money
Sumerians
The invention of money supplemented the barter system by providing a nonperishable medium of exchange.
Barter system
barter
money
Simply, the transferability of money made it a better store of value than barter which required that both parties desire the object/service proffered by the other person.
A barter system uses no money. A volunteer does not work for money.
A trade, an exchange, or barter. An economic system which operates without money is called a barter system.
The exchange of one good for another without the use of money is called Barter.