U.S. data, Fed caution keep pressure on stocks, dollar

By Marc Jones LONDON (Reuters) - World stock markets and the dollar remained in a sharp sell-off mode on Thursday, having been jolted sharply lower by weak U.S. growth data and cautious comments from the Federal Reserve. Asian and European stocks continued a two-day decline for equity markets worldwide with Europe's FTSEurofirst 300 down 0.8 percent and heading for its worst week of the year. Jefferies' global equity strategist Sean Darby said markets were now having to readjust fast t