What is the free rider problem and how does it relate to public goods?

• A. Free rider problems occur when some people benefit from a public good without paying for it, but markets still provide it efficiently.
• B. People benefit from a public good without paying for it, leading to under-provision by the market.
• C. It leads to over-provision of public goods by the private sector.
• D. It only affects private goods and has no impact on public goods.

Answer: (B)

Public goods can be used by anyone and cannot be easily excluded from paying for them. Because of this non-excludability, individuals have an incentive to free-ride—enjoying the benefit without contributing. When many people think this way, the market can’t collect enough revenue to cover the cost of providing the good, so provision ends up being under-supplied. This mismatch between individual incentives and social benefits is the essence of the free rider problem and explains why markets often fail to provide public goods in adequate amounts. That’s why the statement describing people benefiting from a public good without paying for it, leading to under-provision by the market, is the best answer.