We propose a method to quantify other-regarding preferences in group decisions. Our method is based on revealed preference theory. It measures willingness-to- pay for others’ consumption and willingness-to-pay for equality in consumption by evaluating consumption externalities in monetary...

While the interest in smart shopping carts is growing, both retailers and consumer groups have concerns about how real-time spending feedback will influence shopping behavior. Building on budgeting and spending theories, the authors conduct three lab and grocery store experiments, which robustly...