Kee, Olarreaga, and Silva assess the foreign lobbying forces behind the tariff preferences that the United States grants to Latin American and Caribbean countries. The authors extend the basic framework developed by Grossman and Helpman (1994) to explain the relationship between foreign lobbying...

Average most-favored-nation tariffs in the Quad (Canada, the European Union, Japan, and the United States) have fallen to about 5 percent. But tariffs more than three times the average most-favored-nation duty are not uncommon in the Quad and have a disproportionate effect on exports of least...

The European Union, Japan, and the United States have recently announced initiatives to improve market access for the poorest countries. How would these initiatives affect Sub-Saharan Africa and the rest of the world? The European Union, Japan, and the United States have recently announced...

Although average OECD tariffs on imports from the least developed countries are very low; tariffs above 15 percent (peaks) have a disproportional effect on their exports. Products subject to tariff peaks tend to be heavily concentrated in agriculture and food products and labor-intensive...

The proliferation of preferential trade liberalization over the last 20 years has raised the question of whether it slows multilateral trade liberalization. Recent theoretical and empirical evidence indicates that this is the case even for unilateral preferences that developed countries provide...

The proliferation of preferential trade liberalization over the last 20 years has raised the question of whether it slows down multilateral trade liberalization. Recent theoretical and empirical evidence indicates this is the case even for unilateral preferences that developed countries provide...

The United States grants preferential (tariff- and quota-free) market access to a list of products from eligible countries in sub-Saharan Africa through the African Growth and Opportunity Act (AGOA). We analyse the increase in prices received by apparel exporters who benefited from AGOA...

We explore the non-monotonic relationship between the restrictiveness of rules of origin (ROO) and beneficiaries' value-added embedded in preferential exports. Using data for the European Union's GSP schemes, we calculate the value-added maximizing level of ROO restrictiveness. Results suggest...