The dollar was slightly higher and the British pound stumbled at the start of the week, on lingering doubts about the outlook for the world economy as the market takes a closer look at the much-hyped breakthroughs on the U.S.-China trade dispute and on Brexit.

By 3:45 AM ET (0745 GMT), the dollar index, which measures the greenback against a basket of developed market currencies, was up 0.2% at 98.213, marking gains against higher-yielding currencies but modest declines against havens such as the yen and Swiss franc. EUR/USD was down 0.2% at $1.1019.

The pound, which staged its biggest one-day rally in more than two years on Friday, fell back over half a percent against the dollar and euro in early trade in Europe Monday. By 3:45 AM ET, cable was at $1.2583, down 0.5% on the day, while EUR/GBP was up 0.4% at 0.8755.

Source: Investing.com