What happens to the economy when $5.2 trillion in stimulus wears off?

“Our economy does not do a terribly good job of slowing without creating a lot of pain,”

America’s nascent economic boom has been propped up by history’s most expensive training wheels. Some doubt it will be able to keep growing under its own power.

While the economy will be bigger and Americans will be better off than they would have been otherwise, the fading boom could cause its own problems as businesses, homeowners and others find themselves mired once more in a slow-growth economy, and saddled with purchases and investments they made in headier times.