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What is an externality?
Barter Economy
An economic system where goods and services are exchanged directly for other goods and services without the use of money as a medium.
Money Economy
A system where goods and services are exchanged using money as a medium, rather than through barter.
Money Economy
A system in which goods and services are traded using money as a medium of exchange rather than barter.
Barter Economy
An economic system where goods and services are exchanged directly for other goods and services without using money.
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