Our laboratory study of risk sharing without commitment captures the main features of a simple model of voluntary insurance. Participants are paired in matches with stochastic endings. Each period they receive fixed endowments and one of the pair (randomly-drawn) also receives an additional...

We study how two dimensions of market conditions affect behaviour in experimental gift-exchange markets with repeated interaction. First, we consider the impact of competitive imbalance, by varying whether there is an excess supply of "firms" or an excess supply of "workers" in the market....

Do people care about intentions - even when good intentions do not produce good results? In our experiments we find that rates of punishment and reward react strongly to intentions (the wage a firm decides to pay) and more modestly to distributional outcomes (the higher or lower wage actually...

We use an experiment to examine the causes, consequences and possible cures of myopic loss aversion (MLA) for investment behaviour under risk. We find that both investment horizons and feedback frequency contribute almost equally to the effects of MLA. Longer investment horizons and less...

5,132 readers of the German weekly, "Die Zeit", participated in a three-person bargaining experiment. In our data analysis we focus on (1) the influence of age, gender, profession and medium chosen for participation and (2) the external validity of student behaviour (inside and outside the lab)....

Informational asymmetries abound in economic decision making and often provide an incentive for deception through telling a lie or misrepresenting information. In this article I use a cheap-talk sender-receiver experiment to show that telling the truth should be classified as deception too if...

Economics has devoted little attention to whether the type of decision maker matters for economic decisions. However, many important decisions like those on monetary policy or a company's business strategy are made by (small) groups rather than an individual. We compare behaviour of individuals...

This paper addresses the institutional concentration of authors in 15 top economics journals from 1977 to 1997. The concentration of authors' PhD affiliations is substantially higher than the concentration of authors' current affiliations. Relating input indicators, such as population, number of...