Does the salience of a topic affect polarization in related parliamentary debates? When discussing a salient topic, politicians might adopt more extreme stances to gain electoral consensus. Alternatively, they could converge towards more moderate positions to find a compromise. Using...

The social innovations have been together with the advanced technology in the 21st century, taking an essential role in social structures and their informatization processes. Information technology has become an indispensable factor not only in industry and service businesses, but also in...

We report on the results of an experiment designed to disentangle behavioral biases in information aggregation of committees. Subjects get private signals about the state of world, send binary messages, and finally vote under either majority or unanimity rules. Committee decisions are...

This paper presents a review of empirical methods used to assess the behavioral, economic, and political outcomes of Internet and social media usage. Instead of merely surveying the various impacts of the Internet, we examine the methods adopted to identify these impacts. We describe two main...

Klassischerweise üben Vertreter der Wirtschaft sich jenseits der unmittelbaren Betroffenheit weitgehend parteipolitischer Enthaltsamkeit. Da sich in der Bundesrepublik mit der Alternative für Deutschland (AfD) eine von ihrer wirtschaftspolitischen Programmatik her liberal-rechtspopulistische...

In random voting, the committee chair, whose vote decides in the case of a draw, is more often decisive than ordinary voters. Therefore, in the power indices literature, the committee chair is said to be more powerful. Players with a veto right are even more powerful still. Similarly, the...

We theoretically investigate how political abstention among certain social groups encourages populist parties to enter the political stage, trying to absorb inactive voters. We design a two-stage game with two established parties and n voters who jointly determine a taxation policy. The...

wer index research has been a very active field in the last decades. Will this continue or are all the important questions solved? We argue that there are still many opportunities to conduct useful research with and on power indices. Positive and normative questions keep calling for theoretical...

There are many situations in which different groups make collective decisions by committee voting, where each group is represented by a single person. Theoretical concepts suggest how the voting systems in such committees should be designed, but these abstract rules can usually not be...