Are decisions by political parties more or less accepted than direct-democratic decisions? The literature on parties as brand names or labels suggests that the existence of political parties lowers information and transaction costs of voters by providing ideological packages. Building on this...

In many countries, betting in sports is highly regulated. In Germany, however, there are current debates whether regulation should be loosened. A crucial part of the argument is that sport bets could be qualified as "games of skill" that are considered to be less dangerous by German Law than...

The realization of market transactions often depends on decisions in groups in which members are anonymous and cannot communicate, but have interrelated outcomes. In a comprehensive study, we investigated the interaction of group effects, strategic effects and endowment effects in different...