Market failure

Supply and Demand Curves

  • Definition: Supply and demand curves represent informed buyers and sellers interacting in a well-functioning market characterized by perfect competition.

  • Assumption: These curves assume the ideal scenario of numerous sellers offering identical products.

Market Failure

  • Definition: Market failure occurs when supply and demand forces result in an inefficient economic outcome.

  • Introduction to Causes: Five sources of market failure are discussed.

Market Power

  • Definition: Market power occurs when the market does not reflect the perfectly competitive ideal of many sellers offering identical products.

  • Market Structures:

    • Monopoly: A market controlled by a single seller.

    • Oligopoly: A market dominated by a few large firms.

    • Monopolistic Competition: Many firms sell differentiated products.

  • Impacts of Market Power:

    • Sellers exploit limited competition to charge higher prices, resulting in:

    • Reduced quantity purchased by consumers.

    • Underproduction since businesses with market power produce less than the efficient quantity.

Externalities

  • Definition: Externalities occur when buyers' and sellers' decisions have side effects on others that are not reflected in market prices.

  • Types of Externalities:

    • Negative Externality: A side effect that imposes costs, e.g., pollution (air, water, noise).

    • Positive Externality: Benefits to others that are not considered by buyers, leading to fewer beneficial activities than optimal.

  • Societal Implications: Failure to recognize externalities leads to quantities sold that are either too high or too low for societal welfare.

Irrationality

  • Impact of Irrationality: It leads to poor decision-making, where individuals make choices not in their best interests.

  • Examples: Behavioral economists document systematic mistakes individuals make.

Government Regulations

  • Definition: Sometimes government regulations hinder market forces from functioning optimally.

  • Types of Regulations:

    • Price Floors: Minimum allowable prices.

    • Price Ceilings: Maximum allowable prices.

    • Quotas: Limitations on quantity supplied or demanded.

  • Consequences: Regulations may push market prices away from optimal, creating distortions.

Practice Example: Identifying Market Failures

  • Market Power: Breakfast cereal market dominated by few large firms.

  • Externalities: Local utility company causing pollution from burning coal.

  • Information Problems: Used car market with imperfect information.

  • Irrationality: Purchases made without rational reasoning.

  • Government Regulation: Quotas affecting production.

Case Study: Dairy Production

  • Example:

    • Current Scenario: Channel's Dairy producing 3,000 kg at a cost of $4, total costs calculated.

    • Cost: $4 3,000 = $12,000.

    • Regulatory Impact: If mandated to change production levels (e.g., produce 4,000 fewer kg), total costs and production must be recalculated.

  • Total Cost Changes:

    • New production levels impact total costs negatively, illustrating irrational market distortions.

Measuring Market Failure

  • Deadweight Loss: A measure of economic inefficiency resulting from market distortions.

  • Calculation: Difference between maximum possible economic surplus when marginal benefit equals marginal cost and actual surplus.

  • Shape: Deadweight loss typically illustrated as an arrowhead on graphs, pointing towards the efficient quantity.

  • Efficiency Metrics:

    • Economic Surplus is maximized at efficient output levels, whereas market failures create losses in surplus.

Calculating Deadweight Loss Example

  • Scenario: Total economic surplus calculated for Beyond Meat Burger.

    • At former production level: economic surplus = 600.

  • Regulation Impact: Production increasing from optimal leads to deadweight loss.

    • Shown as a triangle on the graph, calculated using area formula: half the base times height.

  • Deadweight Loss Example:

    • Quantifying the loss results in calculating economic surplus reductions from 600 to 450 due to regulatory inefficiencies.

Final Thoughts on Market and Government Failures

  • Role of Government: Government intervention can mitigate market failure but can also lead to government failure, which happens when governmental policies worsen outcomes.

  • Equity and Distribution: Beyond efficiency, policymakers need to analyze distributional consequences of policies, accounting for:

    • Equitable distribution of economic benefits.

    • Willingness to pay which correlates with ability to pay.

  • Three Critiques of Focus on Efficiency:

    1. Distribution: Importance of how economic pie is divided.

    2. Willingness to Pay: Reflects ability to pay and does not only denote marginal benefit.

    3. Means vs. Ends: Process matters and may be judged beyond purely outcome-based evaluations.

Conclusion

  • Importance of using both positive and normative analyses when evaluating public policies.

  • Economic Surplus: Combine consumer surplus (marginal benefit minus price) and producer surplus (price minus marginal cost) to assess overall economic surplus and market efficiency.

  • Recognizing market and government failures is crucial for real-world analysis and economic policy formulation.