- A city government repeals its long-standing and effective rent control laws. Which of the following is the most probable sequence of events in the rental housing market immediately following this change?
Answer: Rental prices increase, the quantity of apartments demanded decreases, and the housing shortage is eliminated.
Repealing a binding price ceiling (rent control) allows the price to rise toward the equilibrium level. As the rental price increases, the quantity of apartments demanded by renters will decrease along the demand curve. While the housing stock is fixed in the short run, landlords may make previously withheld units available, and the movement along both curves eliminates the shortage that existed under rent control.
- A binding price ceiling causes a deadweight loss in a market. Which of the following statements most accurately describes the source of this deadweight loss?
Answer: It is the loss of potential gains from trade for transactions that no longer occur because the price is held below the equilibrium level.
Deadweight loss is the reduction in total economic surplus resulting from a market distortion. In the case of a price ceiling, the quantity supplied is reduced. The deadweight loss represents the value (the area between the demand and supply curves) of the trades that would have occurred at the equilibrium price but do not occur at the lower quantity transacted under the price ceiling. These are mutually beneficial trades that are prevented by the policy. The transfer of surplus (A) is a redistribution, not a loss of total surplus. Enforcement costs (C) and quality decline (D) are other negative consequences, but they are not the definition of deadweight loss itself.
- The government imposes a price ceiling on pharmaceutical drugs that is initially non-binding. Which of the following events could cause this price ceiling to become binding?
Answer: A successful advertising campaign that increases consumer awareness and demand for the drug's benefits.
A non-binding price ceiling is set above the market equilibrium price. For it to become binding, the equilibrium price must rise above the ceiling. A successful advertising campaign (C) would increase demand for the drug, shifting the demand curve to the right and raising the equilibrium price. If the equilibrium price rises above the fixed ceiling price, the ceiling becomes binding. A decrease in production cost (A) would lower the equilibrium price, making the ceiling even less likely to be binding. The discovery of a substitute (B) would decrease demand, also lowering the equilibrium price. While a positive government report (D) could also increase demand, the advertising campaign (C) represents a more direct and immediate market intervention to boost demand.
- A city government imposes a binding rent control ordinance, setting a price ceiling on apartments significantly below the market equilibrium rate. Which statement best describes the likely long-run consequences of this policy compared to its short-run effects?
Answer: The housing shortage will worsen over the long run because the supply of and demand for rental housing are more elastic over time.
In the short run, the supply of apartments is relatively inelastic (the number of buildings is fixed). A price ceiling will cause a shortage. In the long run, supply and demand become more elastic. Landlords have less incentive to maintain existing buildings or build new ones, reducing long-run supply. More people are attracted to the city by the low rents, increasing long-run demand. The combination of quantity supplied falling and quantity demanded rising over time makes the shortage more severe in the long run.
- A government imposes a binding price floor on a good. Who are the unambiguous beneficiaries and who are the unambiguous losers from this policy, assuming the government does not purchase any surplus?
Answer: The producers who are able to sell their good at the higher price benefit, while consumers and some producers are harmed.
A binding price floor raises the price. Consumers are unambiguously harmed because they must pay a higher price and they purchase a smaller quantity. Producers' situation is more complex. The producers who are still able to sell their product at the new, higher price are better off. However, because the quantity demanded falls, some producers will be unable to sell their product and will be harmed. Therefore, it is not true that all producers benefit. The most precise answer is that successful sellers benefit, while consumers and unsuccessful sellers are harmed.
- The market equilibrium price for a good is $20. Which of the following government interventions would result in a market surplus?
Answer: Imposing a price floor of $25 per unit.
A surplus occurs when the quantity supplied exceeds the quantity demanded. This is the result of a binding price floor. A price floor is a minimum price. To be binding, it must be set above the equilibrium price. In this case, the equilibrium price is $20. A price floor of $25 is above the equilibrium, so it is binding and will cause a surplus. A price ceiling of $15 (A) would cause a shortage. A price floor of $15 (B) and a price ceiling of $25 (C) are both non-binding and would have no effect.
- A binding price floor not only creates a surplus but can also lead to inefficiencies. Which of the following is a direct example of an inefficiency caused by a price floor, aside from the creation of a surplus?
Answer: The misallocation of sales among sellers, where low-cost producers are prevented from making sales that go to high-cost producers.
A price floor prevents low-cost, efficient producers from lowering their prices to attract more customers. This means that a high-cost producer might be able to sell their product at the floor price, while a more efficient low-cost producer cannot find a buyer. This is an inefficient allocation of sales because the good is not necessarily being produced by those who can do so at the lowest cost. The transfer of surplus (D) is a redistribution, not an inefficiency itself. Black markets (A) and reduced quality (B) are typically associated with price ceilings.
- The market equilibrium price for a standard laptop is $500. To support domestic manufacturers, the government institutes a price floor of $450 per laptop. Which of the following is the most likely outcome of this policy in the laptop market?
Answer: The market price and quantity sold will remain at their equilibrium levels of $500 and the corresponding quantity.
A price floor is a minimum legal price. For a price floor to be binding and have an effect on the market, it must be set above the equilibrium price. In this case, the equilibrium price is $500 and the price floor is set at $450. Since the market price is already above the floor, the policy is non-binding and will have no effect on the price or quantity exchanged in the market.
- A price floor is implemented in the market for an agricultural good. The deadweight loss resulting from this policy will be largest under which of the following conditions?
Answer: When both the supply of and demand for the good are highly elastic.
Deadweight loss from a price control represents the value of mutually beneficial trades that are prevented. The size of this loss depends on how much the quantity exchanged is reduced. When supply and demand are both highly elastic, a given price increase (from the floor) causes a large decrease in quantity demanded and a large increase in quantity supplied. This large divergence between quantity demanded and supplied means a significant reduction in the actual quantity traded compared to equilibrium, leading to a larger deadweight loss.
- A government wishes to support its country's corn farmers and sets a binding price floor for corn. To maintain the floor, the government agrees to purchase any resulting surplus. Which of the following correctly describes a consequence of this program?
Answer: The policy creates a deadweight loss, as resources are used to produce corn that is valued by consumers at less than its cost of production.
A binding price floor raises the price above equilibrium, which leads to a decrease in quantity demanded and an increase in quantity supplied, creating a surplus. The government buying this surplus encourages the overproduction of corn. The resources used to produce the surplus corn could have been used to produce other goods and services that society values more highly. This inefficient allocation of resources, where the marginal cost of production for the surplus units exceeds the marginal benefit to consumers, results in a deadweight loss, reducing total economic surplus.
- A government imposes a binding price ceiling on beef to make it more affordable. What would be the most likely immediate impact on the market for chicken, a substitute good?
Answer: The demand for chicken will increase, leading to a higher price for chicken.
A price ceiling on beef causes a shortage of beef. Consumers who are unable to buy beef will look for alternatives. Since chicken is a substitute for beef, some consumers will switch from buying beef to buying chicken. This causes the demand for chicken to increase (a rightward shift of the demand curve), which leads to a higher equilibrium price and a greater equilibrium quantity in the market for chicken.
- A law requiring that all tickets for a major sporting event be sold at their original face value, and making it illegal to resell them at a higher price, is functionally equivalent to which type of price control?
Answer: A price ceiling, because it sets a maximum legal price for resale tickets.
The market for resale tickets has its own supply and demand. For a popular event, the equilibrium price on the resale market is typically much higher than the ticket's face value. By legally capping the resale price at the original face value, the law is setting a maximum price. Since this maximum price is below the likely equilibrium resale price, it acts as a binding price ceiling, leading to a shortage of legally available resale tickets and the likely emergence of an illegal (black) market.
- A binding price floor for wheat is in effect, which has created a persistent surplus. A new, more efficient harvesting technology is then introduced, which lowers the cost of production for all wheat farmers. What is the effect of this technological advance in the wheat market?
Answer: The surplus of wheat will increase because at the fixed floor price, suppliers are willing to produce even more.
The new technology shifts the supply curve to the right, meaning that at any given price, farmers are willing to supply more wheat. The price floor, however, is fixed. At this unchanged, artificially high price, the quantity demanded by consumers does not change. But the quantity supplied by farmers increases due to the rightward shift in supply. Therefore, the gap between the quantity supplied and the quantity demanded—the surplus—becomes even larger.
- Consider a competitive market with a binding price ceiling. If the demand for the good suddenly increases due to a change in consumer preferences, what is the most likely immediate effect on the market?
Answer: The shortage of the good will become more severe, increasing the gap between quantity demanded and supplied.
A binding price ceiling holds the market price below the equilibrium level, creating a shortage (Qd > Qs). If demand increases, the demand curve shifts to the right. At the fixed ceiling price, the quantity demanded will now be even higher, while the quantity supplied remains unchanged. As a result, the gap between quantity demanded and quantity supplied—the shortage—will increase, making it more severe.
- The equilibrium price for concert tickets is $80. The government imposes a price ceiling of $100 per ticket. Subsequently, the band's popularity skyrockets, shifting the new equilibrium price to $120. What is the effect of the $100 price control after the shift in demand?
Answer: It creates a shortage, because the price ceiling is now below the new equilibrium price of $120.
This is a multi-step problem. Initially, the price ceiling of $100 is non-binding because it is above the equilibrium price of $80. However, when demand increases and the new equilibrium price becomes $120, the price ceiling of $100 is now below the new equilibrium. Therefore, the initially non-binding ceiling becomes a binding price ceiling, preventing the price from rising to $120 and creating a shortage where quantity demanded at $100 exceeds quantity supplied at $100.
- Besides the intended effect of a lower price at the pump, which of the following is an unavoidable secondary consequence of this policy?
Answer: The emergence of non-price rationing mechanisms, such as long lines and waiting lists at gas stations.
A binding price ceiling creates a shortage because at the artificially low price, the quantity demanded exceeds the quantity supplied. When price is no longer able to ration the good, other mechanisms must take its place. These non-price rationing mechanisms include queues (long lines), favoritism by sellers, or even government-run lottery or coupon systems. A surplus is the result of a price floor. Quality is more likely to decline, not improve. While demand for complementary goods might decrease, this is due to the unavailability (shortage) of gas, which is a direct consequence of non-price rationing, making A the most direct and unavoidable secondary consequence.
- A binding price ceiling is imposed on a product. As a result, a black market develops. At what price are black market goods likely to be sold?
Answer: At a price above the ceiling, potentially as high as the price consumers are willing to pay for the limited quantity available.
A binding price ceiling creates a shortage, meaning many consumers who are willing to pay more than the ceiling price cannot obtain the good. This creates an incentive for suppliers to sell the good illegally at a higher price. The price in the black market will be determined by what consumers are willing to pay. For the limited quantity that is supplied, the demand curve shows that consumers are willing to pay a price significantly higher than the ceiling, and often higher than the original equilibrium price.
- Prior to deregulation in the 1970s, the U.S. government regulated airline fares, which acted as a binding price floor. During this period, airlines famously offered gourmet meals and luxurious in-flight services. What is the best economic explanation for this behavior?
Answer: With price competition suppressed by the price floor, airlines competed for customers by offering inefficiently high quality.
When a binding price floor prevents firms from competing by lowering prices, they often engage in non-price competition. In the case of regulated airlines, they could not attract customers with cheaper fares, so they competed by offering higher quality services like fancy meals and more space. This quality was often inefficiently high, meaning consumers might have preferred a lower fare with fewer amenities, but the price floor made that option unavailable. This is a classic unintended consequence of a price floor.
- Which statement provides the most accurate economic explanation for why binding price ceilings, such as rent control, often persist despite causing well-documented inefficiencies like housing shortages and poor maintenance?
Answer: The benefits of the policy are concentrated on a vocal group of current tenants, while the costs are widely dispersed and less visible.
From a political economy perspective, price controls often persist because the distribution of their effects is politically advantageous. The benefits (lower rent) are significant and highly visible to the group of current tenants who directly gain from them. This group is often well-organized and politically active. The costs (shortages, lower quality, deadweight loss) are spread out among landlords, future potential tenants, and the broader community, making them less visible and harder to organize against. This creates a powerful incentive for politicians to maintain the policy.
