"There's a lot of slack in the economy," said Scott Brown, chief economist at Raymond James & Associates Inc. in St. Petersburg, Florida.
Also Tuesday, the Commerce Department said retail sales in the U.S. grew by less than expected in April. Sales edged higher by 0.1 per cent from March, when they rose a revised 0.7 per cent, down from a prior estimate of 0.8 per cent.
"The economy keeps rolling along," said Chris Rupkey, chief financial economist at Bank of Tokyo Mitsubishi UFJ in New York.