"Retirement security improved over time for the under-prepared people who continued to work -- in contrast to an erosion in security for the people who, despite falling short, had retired at 62 and locked in a small Social Security check. The most interesting finding concerned the older workers who had extended their employment by switching to no-benefit jobs. Their retirement income in their late 60s replaced 68 percent of their past earnings, on average -- still less than what they need but up dramatically from 52 percent if they had retired early."

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