Mechanism that allows people to exchange goods.

• A. Currency
• B. Bank
• C. Market
• D. Tax

Answer: (C)

The market is the mechanism that allows people to exchange goods. It brings together buyers and sellers and uses prices as signals to coordinate what gets produced and traded. When a good is scarce and desired, its price tends to rise, encouraging more supply and letting buyers who value it less drop out; when a good is plentiful, the price falls, increasing demand. This price-driven interaction enables voluntary trades so people can swap what they have for what they want. Currency helps by providing a common medium of exchange, but it’s the market system—the organized interaction of buyers and sellers and the price signals—that makes exchanges of goods possible on a wide scale. Banks and taxes play other roles in the economy, but they do not serve as the primary mechanism for exchanging goods.