From a letter in today's PG:
"Of all the jobs available in this region, 70 percent require only a high school diploma or on-the-job training. Of the remaining 30 percent, 15 percent of jobs require a bachelor's degree; 2 percent require a master's degree; and a mere 1.5 percent require a doctorate degree."
Read more: http://www.post-gazette.com/pg/10129/1056514-110.stm#ixzz0nPA06lW8
The writer, from the TRWIB, concludes that we need to attract more higher level jobs to utilize Pittsburgh's educated workforce.