Businesses around the world are in upbeat mood as 2017 gets underway, according to the fund manager Fidelity International, despite the political uncertainties surrounding Brexit and the Trump presidency.

In the US, almost three-quarters of Fidelity's analysts say the companies they cover think the Trump presidency will be good for business in the next two years - citing "corporate tax reform, income tax cuts, infrastructure spending, Trump’s pro-fossil fuel stance, deregulation, and steeper yield curves".