Die Verhaltensökonomie und ihre praktischen Implikationen geraten immer stärker in den Fokus auch der deutschen Politik. Individuelle Entscheidungen sollen im Sinne eines "libertären Paternalismus" sanft beeinflusst werden. Die „Nudges“ bestehen in Standardvorgaben, Selbstbindungen und...

Most social scientists' views of conflict and cooperation in society are shaped by very elementary, one-off, two by two symmetric simultaneous move games like prisoner's dilemma, chicken, assurance or stag hunt. We think that this diet of examples leads to biased accounts in particular of...

Overall, 72 subjects invest their endowment in four risky assets. Each combination of assets yields the same expected return and variance of returns. Illusion of expertise prevails when one prefers nevertheless the self-selected portfolio. After being randomly assigned to groups of four,...

Abstract We experimentally study intention-based social influence of group members on behavior in standard and modified Ultimatum and Impunity games. Standard games allow for bi-dimensional strategy vectors whereas they are uni-dimensional in modified games. The latter reveal more clearly...

In an ultimatum bargaining, we investigate lying as falsely stating what one privately knows without, however, excluding that others find out the truth. Specifically, we modify the Acquiring-a-Company game. Privately informed sellers send messages about the alleged value of their company to...

We experimentally study a class of pie-sharing games with alternating roles in which the second (and final) stage of interaction follows the rules of a private impunity game, and occurs with a certain probability only if a first-stage agreement is not reached. A large number of participants play...

We analyze how transparency affects information acquisition in a bargaining context, where proposers may chose to purchase information about the unknown outside option of their bargaining partner. Although information acquisition is excessive in all our scenarios we find that the bargaining...