From center-stage in Davos last year, President Donald Trump told the world's corporate bosses that America is a great place to invest. It hasn't quite turned out that way.

Foreign direct investment to the United States fell in 2018, and companies gathered at the World Economic Forum in the Swiss Alps this year say they are worried Trump's trade war with China will dampen the global economy and business investments even further.

One key complaint here this week is that companies increasingly reliant on consumers in China have had to lower their earnings outlooks as the world's second-largest economy cools.