effective rate of protection

The effective rate of protection is an economic concept used to measure the impact of trade barriers, such as tariffs, on domestic industries. It differs from the nominal rate of protection, which is the direct percentage tariff on a product.1

The effective rate considers how tariffs on both the final product and its imported inputs affect the value added by domestic producers. For example, if a country places a higher tariff on finished clothing than on the fabric used to make it, the effective protection for clothing manufacturers will be greater than the nominal tariff suggests. This is because the higher tariff on the final product increases its domestic price, while the lower tariff on inputs keeps their cost relatively lower, thus increasing the profit margin for domestic producers.1

This concept is crucial because countries often implement higher tariffs on finished goods than on raw materials or intermediate components, leading to significantly higher effective rates of protection. This can shield domestic industries from foreign competition, but it also has implications for international trade dynamics and can be a point of contention in global economic relations.12