Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it has been tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source of ambivalent empirical results on...

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 terms....

Previous research has extensively investigated the relationships that consumers create and maintain with their possessions. However, little is known about why material objects (compared to immaterial ones) may be particularly relevant for consumers' self‐definition. In this research, we argue...