U.S. Economy Kept Going by $2 Trillion Shadow Economy

"Government rules are keeping businesses from hiring," says finance professor

The growing underground economy may be helping to prevent the real economy from sinking further, according to analysts.

The shadow economy is a system composed of those who can't find a full-time or regular job. Workers turn to anything that pays them under the table, with no income reported and no taxes paid — especially with an uneven job picture.

"The underground economy is quite big in the U.S.," said Alexandre Padilla, associate professor of economics at Metropolitan State University of Denver. "Whether it's using undocumented workers or those here legally, it's pretty large."

"You normally see underground economies in places like Brazil or in southern Europe," said Laura Gonzalez, professor of personal finance at Fordham University. "But with the job situation and the uncertainty in the economy, it's not all that surprising to have it growing here in the U.S."