Dollar slides to three-year low while FTSE 100 hits record high

Investors turn away from weakening US economy and erratic policy after Trump repeats tariff threats

The dollar sank to its lowest level in more than three years on Thursday and the FTSE 100 closed at a record high as Donald Trump's latest trade threats and the weakening economy appeared to bring forward interest rate cuts by the Federal Reserve.

Foreign exchange traders sold the dollar in favour of the yen and the euro, which both climbed by about 1% against the US currency to leave it almost 10% down on its value against a basket of currencies since the beginning of the year.