The scientific community is now developing a new set of scenarios, referred to as Shared Socio-economic Pathways (SSPs) to replace the SRES scenarios. To be used to investigate adaptation and mitigation, SSPs need to be contrasted along two axes: challenges to mitigation, and challenges to...

We analyze the impact of large firms on business tax rates using data from German mu-nicipalities in Hesse in 1998-2005. Results suggest that business tax rates decrease with tax-payers' concentration, indicating strong local lobbying power of large firms.

This paper empirically studies the voting outcomes of Egypt's first parliamentary elections after the Arab Spring. In light of the strong Islamist success in the polls, we explore the main determinants of Islamist vs. secular voting. We identify three dimensions that affect voting outcomes at...

The implementation of European Union directives into national law is at the discretion of member states. We analyze incentives for member states to deviate from these directives when the European Commission may sue a defecting member state and rulings at the European Court of Justice (ECJ) are...

We investigate the motives of pro-social behavior in collective decisions in an economic experiment. It compares individual behavior in private and collective decisions in a unified experimental setup. Subjects are given an individual endowment and have to decide how much of it to donate to...

Which motives drive the decision of a voter to approve or reject a policy proposal? The Public Choice literature distinguishes between instrumental and expressive voting motives. We investigate the importance of these motives by analysing the patterns of neural activity in different voting...

This paper empirically analyzes the effects of de jure financial openness on institutional quality as captured by indicators on investment risk, corruption level, impartiality of judiciary system as well as the effectiveness of bureaucratic authorities. Using a panel data set of more than 110...

Even after four decades of research it remains unclear, whether presidential popularity depends on the state of the economy. While about half of all studies for the United States find a significant effect of unemployment and inflation on presidential popularity, the others do not. Additional...

This paper investigates social preferences towards unemployment and inflation in the United States. Estimating a popularity function with monthly data for the recent Obama administration, we find that U.S. voters react strongly to both unemployment and inflation. However, reducing unemployment...

This is one of the first studies to estimate a popularity function at the micro-level. Using German micro-level data (GGSS/ALLBUS) for the years 1991, 1992, 1998, and 2008, we show that a positive assessment of the economy significantly improves government popularity while negative evaluations...