of specific tariffs of some agricultural products, linked to the surge in world prices, lowers the average protection. In … computing ad valorem equivalents of tariff protection, and when computing averages at aggregate levels. The world average … the opposite way, the increasing share of developing countries, where protection is higher, tend to raise the world …

provide evidence on the world applied protection in 2004. Finally we investigate variations in tariffs occurred between 2001 … system (HS6), i.e. more than 5000 products, for the year 2004. It includes ad valorem equivalents on MFN tariffs for 169 … and compound tariffs and tariff rate quotasdata are also provided, at the same level of detail. In this paper we present …