The past 48 hours of tariff policies have stunned markets and boardrooms across the world.

U.S. President Donald Trump said on Sunday that although Britain was "out of line" when it came to trade he thought it may be able to avoid tariffs, adding of the imbalance: "I think that one can be worked out".

Trump says he wants to protect American industry, but many economists warn such tariffs could lead to prices rising for consumers in the US. That's because the tax is paid by the domestic company importing the goods,