We study changes in the form of government as an example of endogenously determined constitutions. For a sample of 202 countries over the period 1950-2006, we find that most changes are relatively small and roughly equally likely to be either in the direction of more parliamentarian or more...

De jure judicial independence (JI) is the single most important predictor of de facto JI. In this paper, we describe under what conditions countries are likely to include JI in their constitutions. We describe and analyze both their original choice in this regard as well as change over time...

We report the results of an experiment on norm violation, specifically lying, in a repeatedly played mind game with Syrian refugees in Jordan and in Germany. We compare their behavior with Jordanians, Germans, and Syrians who still live in Syria. The average number of lies is amazingly similar -...

Does the experience of civil war promote in-group bias among survivors? We try to answer this question by analyzing cooperation in a prisoner's dilemma game among Syrian refugees in two host countries, Germany and Jordan. We use a between-subjects analysis to test our in-group cooperation...

An unprecedented number of refugees from Syria has sought refuge in both the Middle East andEurope since the beginning of the civil war in Syria in 2011. We analyze the level of altruism and risk-seeking among Syrian civil war victims in Jordan. We find systematic variations in their revealed...

We study the long-term and dynamic relationship between de jure and de facto judicial independence using a large panel dataset covering 50 countries over a period of 50 years. Our analysis shows a negative relationship between these variables, a sharp cont rast to the prevailing theoretical view...

We analyze possible links between both trust and trustworthiness among Syrian refugees in Germany in relation to the refugees' involvement in two different forms of social networking (forming bonding ties with other refugees vs. forming bridging ties between refugees and Germans). We implement...