To analyze the effects of prospective policy changes, sectoral and economy-wide modelers need to begin with baseline estimates of policy induced price distortions. Global trade modelers mostly use the Global Trade Analysis Project (GTAP) protection database, which currently relies heavily on...

This article describes the evolution of the regulation of agricultural trade and analyses key aspects of the negotiations of the Uruguay and Doha Rounds, in which the least developed countries managed to make the final outcome of the negotiations conditional on progress in the liberalisation of...

Protection unconstrained by rules often varies substantially over time. Rules-based disciplines likeOECD industrial tariff bindings negotiated under GATT since 1947 and new Uruguay Roundbindings on agricultural and services trade and on developing country industrial tariffs, constrain...

The modalities of negotiation on market access for agricultural and non-agricultural products are an important item of the Doha Development Agenda. The dispersion of tariffs remains very large, translating into sizeable economic distortions. In particular, tariff peaks are numerous and highly...