Similar to Levati and Neugebauer (2001), a clock is used by which participants can vary their individual contributions for voluntarily providing a public good. As time goes by, participants either in(de)crease their contribution gradually or keep it constant. Groups of two poorly and two richly...

Direct democracy with its use of referenda avoids the prototypical principal-agent problems of delegation in indirect democracies, especially since elected representatives are usually not committed by law to keep their promises. Sequential or more complex referenda may, however, result in an...

We present an experimental study on the wasted resources associated with tax evasion. This waste arises from taxpayers and tax authorities, investing costly effort in concealment, respectively detect ion, of tax evasion. We show that (socially inefficient) efforts depend positively on the...

In experimental bargaining with incomplete information, we vary the information distribution (symmetric and asymmetric), the direction of electronic pre-play communication (no, one-way, and two-way), and the electronic communication medium (email and video) Bargaining out-comes are influenced by...

The present research experimentally examines the influence of group identity on trust behavior in an investment game. In one treatment, group identity is manipulated only through the creation of artificial (minimal) groups. In other treatments group members are additionally related by outcome...

We examine the degree of trust and reciprocity in an experimental trust game with 662 participants from six different age groups, ranging from 8 year old primary school children to retired persons in their late sixties. Although both trust and reciprocity have been identified as fundamental...

We study sequential parimutuel betting markets with asymmetrically informed bettors, using an experimental approach. In one treatment, groups of eight participants play twenty repetitions of a sequential betting game. The second treatment is identical, except that bettors are observed by other...