The article reports on the 2008 Employee Benefit Research Institute (EBRI) survey of recent retirees in the U.S. It suggests that 63% of employees found possible job incentives most effective in delaying their retirement. The study was based on responses from 4,981 workers in the aerospace and defense fields who retired in 2003 and were between the ages of 55 and 65 years. Moreover, 48% of retirees said that feeling truly needed for a job assignment is very effective in encouraging them to stay.