For employees looking for job opportunities after 50, the options are extremely limited. According to research from Matthew Rutledge of the Center for Retirement Research at Boston College, there are actually a few types of jobs now classified as 'old-person' jobs.

These types of jobs are either high-skilled service work, like managers and sales supervisors, and low-skilled work, like janitors and nursing aides.

A new interactive graphic from The New York Times shows shows what jobs were more or less likely to hire workers aged 55 to 64. For example, this age group was 3.1 times more likely to be hired as guards or watchmen compared to 30 to 40-year-olds.

Fewer choices, lower pay, more rejections. Are these signs of age discrimination?

Using a method of uncovering discrimination well known in economics, David Neumark, an economist at the University of California at Irvine, led a study that sent out 40,000 fake résumés to employers who had posted openings. Mr. Neumark and his co-authors found that résumés suggesting an applicant was 64 to 66 years old got a response 35 percent less often than résumés suggesting that the applicant was 29 to 31.

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