Many consumption prices are highly volatile. It would certainly overburden our cognitive system to fully adjust to all these changes. Households therefore often rely on simple heuristics when deciding what to consume, e.g. in the form of a constant budget share for a specific consumption...

This paper brings together views on choice making as have been developed in philosophy, psychology, and economics. Starting from specific examples the relative merits of different approaches are discussed. The conclusion that models of boundedly rational behavior are the future of social science...

Nach Einordung der Spieltheorie als Rationalverhalten bei interaktiven sozialen Entscheidungsproblemen in Volks- und Betriebswirtschaftslehre werden kurz die (Spiel-)Formen zur Abbildung sozialer Entscheidungssituationen und die wesentlichen Lösungskonzepte vorgestellt. Konkret verdeutlicht...

In phase 1 of our experiment every participant plays the ultimatum game with each of the other five group members, each taking the role of proposer and responder. For each of the offers one learns how many participants would have accepted it. The pie is 30 times larger in phase 2. It thus pays...

The general framework of decision emergence (Güth, 200a) is applied to the specific decision task of a proposer in ultimatum bargaining, i.e. to choosing how much the responder should be offered. For this purpose the "Master Module" as well as its submodules "New Problem Solver", "Adaption...

The question "which utility function would homo oeconomicus choose if he could?" (Frank, 1987) is answered for interactive markets where sellers are assumed to freely choose their dependency on the other's market behavior. We first solve the market for all possible constellations of mutual...

It is often claimed that, if one could sense whether the other is going to cooperate or not, cooperators will manage to cooperate. Our experiment tries to shed new light on this debate. Participants could make their strategies in an asymmetric prisoner's dilemma game and a trust game dependent...