Angela Merkel (L), Chancellor of Germany, and Klaus Schwab, Founder and Executive Chairman of the World Economic Forum (WEF), attend 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)