Import quotas are government-imposed limits on the quantity of a specific good that can be imported into a country. By setting a numerical cap, such as allowing only 1,000 units of a product, the government aims to protect domestic suppliers from competition with lower-priced foreign goods. This restriction can lead to higher prices for consumers, similar to the effects of tariffs.
To illustrate the impact of an import quota, consider the market for oversized lollipops, where the world price is $2.50. At this price, domestic demand is 85,000 units, while domestic supply is only 20,000 units. Without any restrictions, the country would import 65,000 units (the difference between demand and supply). However, if the government sets an import quota of 25,000 units, the new dynamics change significantly.
With the quota in place, the quantity supplied increases to 40,000 units, while the quantity demanded remains at 65,000 units. This results in a new equilibrium price of $4, which is higher than the world price. The quota effectively reduces the number of imports and raises domestic prices, benefiting domestic producers while harming consumer surplus.
Consumer surplus, which is the area above the price and below the demand curve, decreases due to the higher price. In contrast, domestic producers experience an increase in surplus, as they can sell more at the elevated price. However, foreign producers also benefit from the quota, as they can sell their limited imports at the higher domestic price, gaining additional surplus.
Import quotas also lead to deadweight loss, which represents the loss of economic efficiency when the equilibrium outcome is not achievable. This deadweight loss occurs because some trades that would have happened under free trade are now prevented by the quota. The areas of deadweight loss can be identified on the graph as sections that represent lost consumer and producer surplus.
In summary, while both tariffs and import quotas aim to protect domestic industries, they differ in their economic implications. Tariffs generate government revenue, while quotas primarily benefit foreign producers by allowing them to sell at higher prices without government intervention. Additionally, a Voluntary Export Restraint (VER) is a similar concept where the exporting country agrees to limit its exports, resulting in effects akin to those of an import quota.