It also necessitates navigating the rules on anti-dumping, countervailing and quotas, among others, in certain cases. The DXY index shows the value of United States dollar relative to a basket of foreign currencies. The trends in this box are as of May 2019 except for the global economic policy uncertainty index, which is as of April 2019. Data sources are the BIS (2019), Economic Policy Uncertainty (2019), ECB (2019), Thomson Reuters and US Department of Treasury (2019). The calculations are based on UN Comtrade (UN Statistics Division, 2019), using SITC Revision 2, 3-digit commodity classification. The latest data are from 2016 in Cambodia and Lao PDR, 2017 in Viet Nam, and 2018 in Myanmar and Thailand.