Scientists Used 17,000 "Lost" Wallets to Study How Honest People Really Are

By CLARE FIESELER, THE WASHINGTON POST

Image: spukkato/iStock

In 2015, a Swiss graduate student departed from the Zurich airport with a suitcase filled with empty wallets, loads of cash and 400 spare keys. The authorities stopped him with questions. It was for a science experiment, he explained.

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