This paper investigates the behavior of contestants in the game show "Quiz Taxi" when faced with the decision whether to bet the winnings they have acquired on a final "double or nothing" question. The decision is made by groups of two or three persons. This set-up enables the decision making...

We investigate experimentally the effect of consultation (unincentivized advice) on choices under risk in an incentivized investment task. We compare consultation to two benchmark treatments: one with isolated individual choices, and a second with group choice after communication. Our benchmark...

This dissertation studies how psychological motives shape economic preferences and outcomes and how these motives are activated through contextual stimuli. In particular, I focus on the motive care which is a prosocial motive that facilitated cooperation by internalizing externalities, whereas...