German Chancellor Angela Merkel (R) and Klaus Schwab (R), World Economic Forum (WEF) founder and executive chairman, arrive for a plenary session during the 48th annual meeting of the World Economic Forum (WEF) in Davos, Switzerland, Jan. 24, 2018. The 48th World Economic Forum (WEF) Annual Meeting opened Tuesday in Davos. (Xinhua/Xu Jinquan)