Behavioural Sciences

Would you give up your friend's privacy for pizza?

Rosa's Fresh Pizza owner Mason Wartman, a former Wall Street equity researcher, reaches to heat slices of pizza in Philadelphia, Pennsylvania January 10, 2015. The $1 a slice pizzeria, which opened in December 2013, has provided 8,500 slices of pizza to the homeless in the last 9 months.  With a 'pay-it-forward' approach, customers donate dollars to feed those in need.  REUTERS/Mark Makela (UNITED STATES - Tags: FOOD SOCIETY POVERTY) - RTR4KV7X

A new study has shown that privacy takes a backseat for a reward as simple as free pizza. Image: REUTERS/Mark Makela

Stanford University
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