U.S. economy showing signs of momentum

The weakest quarter for the U.S. economy in nearly two years may end up being a temporary lull. Economists think growth has begun to pick up on the strength of a sustained housing recovery and a better job market.

The economy grew at an annual rate of just 0.1 percent from October from December, a government report Thursday showed. That's only slightly better than the Commerce Department's previous estimate that the economy shrank at a rate of 0.1 percent. And it's down from the 3.1 percent annual growth rate in the July-September quarter.

Economists said the weakness last quarter was caused by steep defense cuts and slower company restocking, which are volatile. Residential construction, consumer spending and business investment -- core drivers of growth -- all improved. Steady job growth will likely keep consumers spending, despite higher Social Security taxes that have cut into take-home pay.

Analysts think growth is picking up in the January-March quarter to a roughly 2 percent annual rate. The only impediment may be the across-the-board government spending cuts that kick in Friday -- especially if those cuts remain in place for months.

"I continue to have some optimism about the economy despite the efforts of Washington to kill it, because the labor market continues to improve," said Joel Naroff, chief economist at Naroff Economic Advisers

Naroff thinks the economy could grow at an annual rate of around 2 percent in the first quarter of 2013 and an even better rate of 4 percent in the April-June quarter. But he and other economists warn that lawmakers will slow growth if they fail to reach a budget agreement indefinitely. If the spending cuts last two weeks or longer, Naroff said they could shave a half-percentage point off first-quarter growth and a full percentage point off second-quarter growth.