A speech by the U.N. chief, economic growth potential in places like China and Russia, the challenges of artificial intelligence, and appearances by leaders from Spain to Malaysia are set to headline the agenda at the World Economic Forum's annual event in Davos on Wednesday.

“I’m pretty comfortable with the market expectations for the upcoming two meetings,” the Dutch central banker told Bloomberg TV. “I’m not convinced yet that we need to go into stimulative mode.”

Officials and business executives at the annual gathering in Switzerland said the fight against global climate change would continue with or without the United States.