Which of the following will cause a decrease in consumer surplus?
a. An increase in the number of sellers of the good.
b. A decrease in the production cost of the good.
c. Sellers expect the price of the good to be lower next month.
d. The imposition of a binding price floor in the market.
The correct answer and explanation is :
The correct answer is d. The imposition of a binding price floor in the market.
Explanation:
Consumer surplus refers to the difference between what consumers are willing to pay for a good and what they actually pay. It is the area under the demand curve and above the price line in a supply-demand graph. Any factor that either increases the price consumers pay or reduces the quantity of goods they can purchase at that price typically leads to a decrease in consumer surplus.
Now, let’s analyze each option:
- a. An increase in the number of sellers of the good: When the number of sellers in a market increases, competition generally rises. This can lead to a decrease in the price of the good, as sellers try to attract more consumers. With a lower price, consumers benefit from a higher consumer surplus because they are paying less for the same or more quantity of goods. Hence, this option would increase consumer surplus, not decrease it.
- b. A decrease in the production cost of the good: A decrease in production costs usually results in an increase in supply, which shifts the supply curve to the right. This increase in supply tends to lower the market price, benefiting consumers by allowing them to pay less for the good. Thus, consumer surplus increases in this scenario, not decreases.
- c. Sellers expect the price of the good to be lower next month: If sellers expect the price to decrease in the future, they may hold back some of their current supply, which could reduce the quantity available in the market. This reduction in supply could raise the current price, decreasing consumer surplus because consumers will pay more for the good. However, this is a temporary effect, and it is likely that in the long term, consumers will benefit from the lower price next month. This would not necessarily lead to a permanent decrease in consumer surplus.
- d. The imposition of a binding price floor in the market: A price floor is a minimum price set by the government above the equilibrium price. A binding price floor means the price is set higher than what the market would naturally settle at. This results in a surplus of goods (as the higher price decreases demand and increases supply). However, consumers are now forced to pay a higher price, reducing the consumer surplus. Since they are paying more for the same or fewer goods, this leads to a decrease in consumer surplus.
Therefore, option d, the imposition of a binding price floor, will cause a decrease in consumer surplus.