Market failure
a situation where the free market, when left to its own devices, fails to allocate resources efficiently, leading to a net social welfare loss
Externalities, Public Goods, Information Asymmetry, Market Power
Causes of Market Failure
Externalities
Costs or benefits of a market activity that affect third parties not involved in the transaction.
Negative Externalities
When the production or consumption of a good or service imposes costs on third parties.
Positive Externalities
When the production or consumption of a good or service provides benefits to third parties
Public Goods
Goods that are non-excludable and non-rivalrous.
Non-excludable, Non-rivalrous
Characteristics of Public Goods
Information Asymmetry
A situation where one party has more or better information than the other in a transaction
Adverse Selection
When buyers or sellers have information that the other party does not have, leading to an inefficient market outcome
Moral Hazard
When one party takes more risks because they do not bear the full consequences of those risks.
Market Power
The ability of a firm or group of firms to influence the price and output of a good or service in the market
Monopoly, Oligopoly
Characteristics of Market Power
Negative Externalities, Positive Externalities, Public Goods, Information Asymmetry, Market Power
Types of Market Failure
Negative Externalities
Occur when the consumption or production of a good causes a harmful effect to a third party
Positive Externalities
Occur when the consumption or production of a good causes a beneficial effect to a third party
Public Goods
Goods that are non-excludable and non-rivalrous, leading to the free-rider problem
Information Asymmetry
When one party has more or better information than the other in a transaction.
Market Power
When firms or groups of firms can influence prices and output
Air Pollution, Noise Pollution
Examples of Negative Externalities
Education, Vaccination
Examples of Positive Externalities
Street Lighting, National Defense
Examples of Public Goods
Used Car Market, Health Insurance
Examples of Information Asymmetry
Monopolies, Oligopolies
Examples of Market Power
Taxes and Subsidies
Regulation and Legislation
Direct Provision
Market-Based Solutions
Types of Intervention to Correct Market Failure
Pollution Taxes
Education Subsidies
Public Healthcare
Antitrust Laws
Examples of Government Intervention to Correct Market Failure
Effectiveness
Efficiency
Equity
Unintended Consequences
Evaluation of Government Intervention
Unintended Consequences
Potential negative side effects of intervention (e.g., black markets, regulatory capture)
Effectiveness
Assessing whether the intervention successfully corrects the market failure
Antitrust Laws
Legislation to prevent monopolies and promote competition (e.g., Sherman Antitrust Act).
Deregulation
Removing barriers to entry to increase competition in certain industries (e.g., telecommunications).
Licensing and Certification
Ensuring professionals meet certain standards (e.g., medical licenses).
Government Provision
The government directly provides public goods funded by taxation (e.g., police and fire services).
Public-Private Partnerships
Collaboration between the government and private sector to provide public goods
Subsidies
Providing financial support to reduce the cost of goods with positive externalities (e.g., subsidizing education)