NEW YORK, May 13 (Reuters) - The U.S. dollar index =USD
rose modestly on Wednesday morning after Federal Reserve Chair
Jerome Powell delivered remarks in which he said an "extended
period" of weak growth may be in store for the United States,
while also rejecting the idea of using negative interest rates
as a stimulative tool. Though the index was still lower on the day, it was last
down 0.10% to 99.9. Prior to Powell's speech it was down about
0.43% on the day. On Wednesday morning, the dollar was
attracting safe-haven interest, as investors shed riskier assets
in their portfolio, including U.S. stocks.