The study was conducted by David Neumark, who is a professor of economics at the University of California, Irvine, and two other economists. They sent out 40,000 resumes for thousands of real jobs. The resumes for any given job were identical except for age. "The call-back rate — the rate by which employers contact us and say we'd like to interview you — drops from young applicants to middle-aged applicants and drops further from middle-aged applicants to older applicants," Neumark says.

For the full story, please visit http://www.npr.org/2017/03/24/521266749/too-much-experience-to-be-hired-some-older-americans-face-age-bias.