Jobs created since employment in the U.S. began expanding again tend to pay significantly less than the ones that were lost in the steep downturn, according to wage study released today for the U.S. Conference of Mayors,Bloomberg Businessweek reported. Much of the current job growth has been sectors with annual average wages of $21,000. On the other hand, about half of the jobs lost from the start of 2008 through the start of 2010 were in manufacturing and construction, where average pay was $61,637 in today's dollars, according to the report.