We implement a simple two-shop search model in the laboratory with the aim of testing if consumers behave differently in equivalent situations, where prices are displayed either as net prices or as gross prices with discounts. We compare search behavior in base treatments (where both shops post...

Altruists and envious people who meet in contests are symbionts. They do better than a population of narrowly rational individuals. If there are only altruists and envious individuals, a particular mixture of altruists and envious individuals is evolutionarily stable.

If firms compete in all-pay auctions with complete information, silent shareholdings introduce asymmetric externalities into the allpay auction framework. If the strongest firm owns a large share in the second strongest firm, this may make the strongest firm abstain from bidding. As a...