td united nations conference on trade and development distr general b com 1 14 rev 28 january 2000 original english board commission in goods services commodities the post uruguay round tariff environment for developing country exports peaks escalation unctad wto joint study executive summary this analyses situation that will prevail products imported from countries once all concessions have been implemented four developed markets of canada european union japan states as well th e brazil china republic korea an d malays ia paper was revised essentially to reflect updated data fo r app lied tariffs import charges after new tariffication s 1998 generalised system preferences rates estimates ad valorem equivalents specific based average unit values 1996 1997 prob lems high remain widespread developin g even