IB International Economics Higher Level (HL) Practice Exam

A tariff imposed on imports leads to welfare loss in an economy. This occurs because tariffs create a distortion in the free market by making imported goods more expensive. Consumers in the importing country face higher prices, which means they buy less of the imported goods and may switch to more expensive domestic alternatives. The welfare loss arises from the fact that the overall economic efficiency is reduced. Resources are not allocated to their most productive uses, and there is a decrease in consumer surplus due to higher prices. Additionally, there is a deadweight loss from the reduction in trade, as both consumers and producers experience a decline in surplus that isn't fully offset by any gains made by local producers due to reduced competition. In contrast, imposing a tariff does not lead to higher international demand, as it typically restricts imports. It also does not decrease production costs; in fact, domestic producers might face higher input costs due to reduced competition. The notion of lower tariffs on exports is not a direct outcome of imposing tariffs on imports; instead, tariffs generally lead to a more protectionist environment, which can destabilize trade relationships. Thus, the most accurate and relevant outcome of a tariff is the associated welfare loss that arises from these market distortions.