Aviation Week's 15th annual Workforce and Young Professionals/Student Study shows that aerospace and defense (A&D) companies will fill 31,800 job openings in 2011, up from 19,500 in 2010. The hiring will slow again in 2012 to 22,000, a decline of more than 30%. Aviation Week's highly regarded Workforce Study, the industry's official report and a mainstay for A&D planning and trend analysis since 1997, identifies trends in technological challenges, leadership, demographics and compensation, and ranks the top universities for A&D recruitment, with Penn State at the top for engineering schools and George Mason University as the top business/finance school this year.