Participants attend Celebration of 50th Anniversary of WEF in Davos

Klaus Schwab, founder and executive chairman of the World Economic Forum (WEF), speaks at the Celebration of the 50th Anniversary of WEF in Davos, Switzerland, Jan. 20, 2020. The WEF Annual Meeting 2020 is scheduled to take place on Jan. 21-24 in Davos-Klosters in Switzerland. (Xinhua/Guo Chen)