In 1971, Subjects came to a lab to rate art. Midway, a research asst handed half an unsolicited Coca-Cola. Later, the same asst asked each subject to buy raffle tickets. Those who’d received a soda bought twice as many tickets. A small gift created a sense of obligation.
In 1971, Subjects came to a lab to rate art. Midway, a research asst handed half an unsolicited Coca-Cola. Later, the same asst asked each subject to buy raffle tickets. Those who’d received a soda bought twice as many tickets. A small gift created a sense of obligation.
John Irving.
John Irving.