The „Experimental Economics Group“ uses experimental methods – both in the lab and in the field – to study a broad variety of questions that are relevant for society. Among others, three areas of research are particularly important. First, the group studies how economic preferences develop in childhood and adolescence. This area includes investigating the factors that determine economic preferences of young humans and devising interventions to shape behavior in a way that promotes success in life. Second, the group is interested in the provision of credence goods. Markets for credence goods (e.g., repair or medical services) are characterized by information asymmetries between expert sellers and customers, which opens the door for fraudulent behavior on the seller side. The group examines the conditions for the honest and efficient provision of such goods. Third, the group focuses on how fairness concerns and social norms promote efficient social interaction in groups of humans. Here the group concentrates on understanding the role of fairness and honesty as a prerequisite for a mutually beneficial social interactions.