Werner Güth's ultimatum game played a key role in the development of multiple research areas, several of which are highlighted.

Credence goods, such as car repairs or medical services, are characterized by severe informational asymmetries between sellers and consumers, leading to fraud in the form of provision of insufficient service (undertreatment), provision of unnecessary service (overtreatment) and charging too much...

We devise a new experimental game by nesting a voluntary contributions mechanism in a broader spectrum of incentive schemes. With it, we study tensions between egalitarianism, equity concerns, self-interest, and the need for incentives. In a 2x2 design, subjects either vote on or exogenously...

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...

We show in a public goods experiment on three continents that conditional cooperation is a universal behavioral regularity. Yet, the number of conditional cooperators and the extent of conditional cooperation are much higher in the U.S.A. than anywhere else.

The effects of a Tobin tax on foreign exchange markets have long been disputed. We present an experiment with currency trading on two markets, where either none, one, or both markets are taxed. Our results confirm the hitherto undisputed issues: a tax reduces trading volume, shifts market share...

We study experimentally the relationship between intra-firm wage dispersion chosen by principals and workers' performance. Principals show a preference for more egalitarian wage schemes, and workers are negatively influenced by high levels of wage inequality.