Non-profits regularly use conditional “thank-you” gifts to entice prospective donors to give, yet experimental evidence suggests their effects are mixed in practice. This paper uses a series of laboratory experiments to systematically test when and why thank-you gifts vary in effectiveness....

Price promotions are typically offered in groups on websites, mailings and circulars, but little is known about how promotional offers in near proximity affect each other. Across two large-scale field experiments (N=66,184) conducted on a multi-brand coupon website, we find that when lead...

We randomly vary religious identity salience in laboratory subjects to test how identity salience contributes to six hypothesized links from prior literature between religious identity and economic behavior. We find that religious identity salience makes Protestants increase contributions to...