Projected U.S. economic growth for the rest of this year and next was revised down for a third month in a row by a panel of about 50 economists.
The latest Blue Chip Economic Indicators report on Thursday said the weaker outlook for second-half 2010 growth stemmed from lower expectations for consumer spending, business investment and private construction.
"Growth in the current quarter now is expected to be little better than the disappointingly soft advance registered last quarter," the survey said. Gross domestic product grew at a meager 1.6 percent annual rate in the second quarter, less than half the first quarter's 3.7 percent rate.
But the economists' group said that, after the mid-year soft patch, it saw a gradual improving trend setting in with growth slightly surpassing trend rate in the second half of 2011.
Blue Chip defines GDP trend growth at about 2-3/4 percent a year.