From Business Week:
But scholars say there’s a problem with that argument: The tech worker shortage doesn’t actually exist.
“There’s no evidence of any way, shape, or form that there’s a shortage in the conventional sense,” says Hal Salzman, a professor of planning and public policy at Rutgers University. “They may not be able to find them at the price they want. But I’m not sure that qualifies as a shortage, any more than my not being able to find a half-priced TV.”
Further, he and his co-authors found, only half of STEM (science, technology, engineering, and mathematics) college graduates each year get hired into STEM jobs.
http://www.businessweek.com/articles/2014-11-24/the-tech-worker-shortage-doesnt-really-exist#r=rss