A situation in which the market fails to allocate resources efficiently.

• A. Externality
• B. Market Failure
• C. Public Goods
• D. Bank

Answer: (B)

Market failure occurs when the market fails to allocate resources efficiently. This happens because price signals don’t reflect all social costs and benefits, leading to too much or too little of certain goods and services being produced. Externalities and public goods are common reasons this happens: externalities create costs or benefits that aren’t paid for or charged in the market, and public goods are difficult to supply efficiently through markets due to non-excludability and non-rivalry. A bank isn’t a description of an overall inefficiency in resource allocation, though its actions can influence efficiency in specific contexts.