U.S. stock markets fell further into bear market territory at the open on Thursday, after President Donald Trump failed late on Wednesday to provide a detailed package of economic policy stimulus to address the impact of the spreading coronavirus. By 9:35 AM ET (1335 GMT), the Dow Jones Industrial Average was down 1,729 points or 7.3%. The S&P 500 was down 6.4% and the Nasdaq Composite was down 6.5%. “The market conclusion would appear to be that the U.S. President’s approach does not represent the clear and coherent economic plan that investors wish to see,” said Paul Donovan, chief economist with UBS Global Wealth Management, in a morning briefing. Speaking after the market close on Wednesday, Trump had announced a somewhat haphazard cocktail of measures including a ban on foreign nationals arriving from continental Europe, but not from the U.K. and Ireland, a measure that dealt another blow to airline and travel-exposed stocks. The news also sent U.S. crude oil prices spiral...