Stocks seesaw, yields fall on dire economic outlook

NEW YORK/LONDON (Reuters) - World stock markets seesawed while bond yields retreated on Thursday as dire U.S. jobless data underscored a deepening downturn amid the coronavirus pandemic and tamped down investor hopes a listless economy would soon be back on its feet.A record 22 million Americans sought unemployment benefits over the past month, with millions more filing claims last week in an early sign of how deep the economic slump caused by the pandemic will be.President Donald Trump plans to..