Dollar hits eight-month high; global stocks set for weekly gain

By Dion Rabouin NEW YORK (Reuters) - The dollar rose to its highest since Feb. 3 against a basket of currencies on Friday as investors increased bets on higher U.S. interest rates, while a measure of world stocks looked set for its first weekly gain in four weeks despite some soft U.S. corporate results. On Wall Street, energy and healthcare stocks weighed on the S&P 500 and Dow, but Microsoft at all-time highs kept the Nasdaq in positive territory. "If companies cannot beat estimates in thi