represented 83 percent of the world's population and 91 percent of the world's GDP in 2013. It addresses the following five … setting trade policy? Finally, how liberalized is world trade? The analysis documents the extent of cross … concludes that substantial trade policy barriers remain as an important feature of the world economy …

1989 - 2010; by 2010, these WTO member countries collectively accounted for 21 percent of world merchandise imports and 22 … percent of world GDP. We examine determinants of carefully constructed, bilateral measures of new import protection imposed at …