The application of progressively higher import fees or charges from the raw to the processed form of products within the same product categories (e.g. oilseed to vegetable oil).
In a country's tariff schedule, the tendency for tariffs to be higher on processed goods than on the raw materials from which they are produced. This causes the effective rate of protection on these goods to be higher than the nominal rate and puts LDC producers of primary products at a disadvantage.
A situation where tariffs on manufactured goods are relatively high, tariffs on semi-processed goods are moderate and tariffs on raw materials are low or non-existent. Français: Tarif par paliers croissants Español: Progresión arancelaria