The literature reports a tendency that future losses are discounted less than future gains, the so-called sign effect in intertemporal decision making. In this article, we study implications of the sign effect on risk taking: If future losses are discounted less than future gains, mixed...

Problem gamblers discount delayed rewards more rapidly than do non-gambling controls. Understanding this impulsivity is important for developing treatment options. In this article, we seek to make two contributions: First, we ask which of the currently debated economic models of inter-temporal...

This paper studies ethnic in-group bias in online trust games played by two large representative samples in the United States and Germany through the Trustlab platform, which was launched by the OECD and several research partners in 2017. The ethnic in-group bias, defined as the propensity to...

The formation of economic preferences in childhood and adolescence has long-term consequences for life outcomes. We study in an experiment how both birth order and siblings’ gender composition are related to risk, time, and social preferences. We find that second-born children are typically...

Problem gamblers discount delayed rewards more rapidly than do non-gambling controls. Understanding this impulsivity is important for developing treatment options. In this article, we seek to make two contributions: First, we ask which of the currently debated economic models of intertemporal...

In Schmidt (1998) a new axiomatic model of decision making under risk has been developed, which can accommodate the certainty effect and is, apart from this property, equivalent to expected utility in all other choice problems. A central feature of this model, termed expected utility with...

The present paper studies the effect of the COVID-19 pandemic on risk preferences. Using real-time panel data from the year before the pandemic and from the first few months of the pandemic in Germany (April to July 2020), we provide robust evidence that exposure to COVID-19 reduces individual...