[img]http://d.yimg.com/a/p/ap/20100129/capt.5c91ec047cfe454baac496e291cd2f3d.economy__ohas404.jpg?x=130&y=90&q=85&sig=7iPmXht4NVLRkwv9PhoUlg--[/img]AP - The economy grew faster than expected at the end of last year, though the engine of that growth — companies replenishing stockpiles — is likely to weaken as consumers keep a lid on spending.