The multilateral trade system rests on the principle of nondiscrimination. The most-favored-nation (MFN) clause embodied in article one of the General Agreement on Tariffs and Trade (GATT) was the defining principle for a system that emerged in the post, Second World War era, largely in reaction...

This paper presents a new global tariff database covering tariffs at the six-digit product level for 197 importing countries and their trading partners for 30 years, namely 1988 to 2017. I deal simultaneously with the two major issues, missing data and misreporting, almost doubling the number of...

This paper quantifies potential costs of issue linkage examining trade preferences granted under the US Generalized System of Preferences (GSP). Preferential market access via US GSP is conditional on political practices by beneficiaries. Using monthly import data, I study trade policy...

This paper addresses the impact of Multilateral Trade Liberalisation (MTL) on the preferential tariffs granted by the United States. For a given MFN tariff, we model the preferential tariff with a simple linear functional form. We take MTL of the US as known to the world by the end of Uruguay...