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 authors provide estimates of the impact that removing all merchandise trade distortions (including agricultural subsidies) would have on food and agricultural production, trade, and incomes. Using the latest versions of the Global Trade Analysis Project (GTAP) database and the World Bank's...