Government Intervention

Learning Outcomes for Chapter 6: Government Intervention

  • Key Learning Objectives
    • Understand the impact of price ceilings and price floors on equilibrium price and quantity.
    • Analyze how taxes and subsidies affect equilibrium price and quantity.
    • Explore the influence of elasticity and time periods on the effects of market interventions.

Why Government Intervention?

  • Market Equilibrium
    • Markets naturally gravitate toward equilibrium.
    • Prices adjust until the quantity demanded equals quantity supplied.
  • Reasons for Government Intervention
    • Changing the Distribution of Benefits: To ensure a more equitable distribution of resources.
    • Encouraging or Discouraging Consumption: To promote public health (discouraging tobacco, for example) or to support certain industries (such as renewable energy).
    • Correcting Market Failures: Such as monopolies, negative externalities, or public goods situations.

Real-World Examples of Government Interventions

  • Four significant interventions are discussed:
    • Tortilla Prices in Mexico: The government imposed a maximum price (price ceiling).
    • Milk Prices in the U.S.: A minimum price (price floor) was established.
    • Fatty Foods in the U.S.: The government imposed a tax on high-fat, high-calorie foods.
    • Tortilla Producers in Mexico: The government provided subsidies to producers.
  • Each of these examples requires both positive and normative analysis:
    • Trade-offs: Evaluating benefits versus costs.
    • Efficacy of Benefits: Analyzing whether the intervention achieves desired outcomes.

Price Controls

  • Definitions of Price Controls
    • Price Ceiling: A maximum legal price for a good or service, designed to keep prices low for consumers (e.g., essential items like food).
    • Price Floor: A minimum legal price for a good or service, typically to protect producers, particularly in agriculture (e.g., milk prices).
  • Effects of Price Controls
    • Price controls create incentives or disincentives for producers and affect the market equilibrium.

Price Ceilings

  • Example of Price Ceilings with Tortillas in Mexico
    • Efficient Market Context:
    • Market price: 0.50 per lb.
    • Quantity produced: 50 million lbs.
    • Inefficient Market Scenario:
    • Price ceiling set at 0.25 per lb.
    • Quantity produced drops to 25 million lbs.
  • Effectiveness of Price Ceiling
    • Consumer Access: Accessible at lower prices; however,
    • Supply Shortage: Consumers want to buy three times the quantity available, leading to welfare effects.
  • Welfare Effects of Price Ceiling
    • Deadweight Loss: Results from reductions in quantity sold due to ceiling.
    • Transfer of Welfare: Surplus transfers from producers to consumers.
    • Rationing: Shortages require rationing which could lead to non-transparent allocation methods (e.g., bribery).

Price Floors

  • Example of Price Floors with U.S. Milk Prices
    • Efficient Market Context:
    • Pre-floor price: 2.50 per gallon.
    • Quantity produced: 15 million gallons.
    • Inefficient Market Scenario:
    • Price floor set at 3.00 per gallon.
    • Quantity increases to 20 million gallons.
  • Effectiveness of Price Floor
    • Consumer Impact: Higher prices may lead to unsold milk due to decreased demand.
    • Welfare Effects of Price Floor
    • Causes deadweight loss and an excessive surplus.
  • Government Expenditures:
    • Government has to buy surplus milk created by the price floor, costing significant sums (e.g., 30 billion for 10 billion gallons).

Taxes and Subsidies

  • Definitions of Taxes and Subsidies
    • Taxes: Charges imposed by the government on goods, can be paid by either buyers or sellers.
    • Subsidies: Payments made by the government to lower costs, encouraging production or consumption.
  • Functions of Taxes
    • Discourage production/consumption.
    • Generate government revenue.
  • Tax Effect Mechanics
    • For instance, a 0.20 tax leads to a wedge between buyer and seller prices, reducing equilibrium quantity from 30 million to 25 million.

Tax Incidence

  • Understanding Tax Burden
    • Determined by the price elasticity of demand and supply.
    • More elastic side bears less burden.
  • Identification of Burden:
    • If buyers and sellers share equal burden, tax incidence can be distributed evenly or skewed based on elasticity.

Subsidy Effects

  • Example of Subsidizing Tortillas in Mexico
    • Government provides 0.35 subsidy per unit.
    • Buyer price decreases; seller price increases leading to higher production (e.g., from 50 million to 62 million tortillas).
  • Welfare Effects of Subsidies
    • Overproduction occurs, leading to deadweight loss and changes in consumer and producer surplus, which may not offset the costs of subsidies.

Unintended Consequences of Bioproduct Subsidies

  • Environmental Concerns:
    • Subsidies for biofuels (e.g., corn) aim to reduce pollution but can result in increasing food prices and additional pollution due to land-use changes.

Impact of Long-Run vs Short-Run Intervention

  • Time Lag in Intervention Effects
    • Short-run effects of interventions may differ significantly from long-run outcomes.
    • E.g., short-run gasoline price controls may show minimal impact, but long-run adjustments lead to substantial changes in consumer behavior and supply response.

Conclusion

  • Summary of Key Tools for Understanding Government Interventions:
    • Price Controls (Floors and Ceilings)
    • Taxes and Subsidies
  • Key Questions in Analysis:
    • Determining shifts in supply and/or demand in response to government actions.