US: weak growth raises concerns on economy

The Commerce Department data also showed the current lull in the economy began earlier than had been thought, with the growth losing steam late last year.

That could raise questions on the long held view by both Federal Reserve officials and independent economists that the slowdown in growth as the year started was largely the result of transitory factors.

Growth in gross domestic product - a measure of all goods and services produced within US borders - rose at a 1.3 percent annual rate. First-quarter output was sharply revised down to a 0.4 percent pace from a 1.9 percent increase.

Economists had expected the economy to expand at a 1.8 percent rate in the second quarter. Fourth-quarter growth was revised to a 2.3 percent rate from 3.1 percent.

Consumer spending, which accounts for about 70 percent of US economic activity, decelerated sharply to a 0.1 percent rate - the weakest since the recession ended two years ago. Spending grew at a 2.1 percent pace in the first quarter.

Motor vehicle production subtracted 0.12 percentage point from gross domestic product growth in the second quarter, after adding 1.08 percentage points to first-quarter GDP growth.

The composition of growth in the April-June quarter was weak and could prompt economists to dial down their expectations for a quick and solid rebound in the third quarter.

A smaller trade deficit, as imports slowed, was one of the main contributors to the rise in second-quarter growth, with businesses spending and inventory investment also adding to output.

Government spending declined again in the second quarter as state and local authorities continued to pare their budgets, even though defense expenditures rebounded at 7.3 percent rate after contracting at a 12.6 percent rate in the first three months of the year.

Home building rose at a 3.8 percent pace, while investment in nonresidential structures increased at an 8.1 percent rate.

The easing of the auto parts disruptions and a drop in gasoline prices could be a tail wind to third-quarter growth, but economists are concerned that June data was rather weak.

The report also showed a moderation in inflation pressures, with the personal consumption expenditure price index rising at a 3.1 percent rate after rising 3.9 percent in the first quarter. Excluding food and energy, the core PCE index rose 2.1 percent, the fastest since the fourth quarter of 2009, after rising 1.6 percent in the first quarter. It overshot the Federal Reserve's preferred 2.0 percent level.