We study the existence of homophily (i.e. the tendency for people to make friends with people who are similar to themselves) with respect to trustworthiness. We ask whether two friends show similarly trustworthy behavior towards strangers, and whether this is anticipated by outsiders. We develop...

We investigate whether people become more willingly self-employed during boom periods or in recessions and to what extent it is the business cycle or the employment status influencing entry rates into entrepreneurship. Our analysis for Germany reveals that start-up activities are positively...

A group of actors, individuals or firms, can engage in collectively providing projects which may be costly or generating revenues and which may benefit some and harm others. Based on requirements of procedural fairness (Güth and Kliemt, 2013), we derive a bidding mechanism determining...

Two participants have to decide jointly, with the discussions preceding their choice being video/audiotaped. For two tasks, one with and one without strategic interaction, we refer to obvious reasoning styles as mental models. The videotaped discussions are analyzed according to which mental...

This paper sheds new light on the concept of selection in evolutionary economics. The interpretation of natural evolution has experienced significant changes in the last decades, while these developments have been often ignored by economists. This is especially true for the concept of selection,...

The European Union's (EU) Renewable Energy Directive (RED) continues to be the focus of much debate over the validity of biofuel sustainability. The debate is driven in part by ongoing concerns of transparency and regional variations of emissions from feedstock cultivation and processing. In a...

Cooperation norms often emerge in situations, where the long term collective benefits help to overcome short run individual interests, for instance in repeated Prisoner's Dilemma (PD) situations. Often, however, there are different paths to cooperation, benefiting different kinds of actors to...

We develop a model in which novelty and conformity motivate fashion behavior.Fashion cycles occur if conformity is not too high. The duration of fashion cycles depends on individual-specific conformity, novelty, and the number of available styles. The use of individual-specific novelty and...

In this paper we develop a methodology which is based on two important criteria - sensitivity in delivery time and value-to-weight ratio - to classify products relevant for air transport. Detailed trade data by mode of transport are used to check the loading of an average airplane between South...

This paper experimentally examines a procedurally fair provision mech- anism allowing members of a small community to determine, via their bids, which of four alternative public projects to implement. Previous experi- ments with positive cost projects have demonstrated that the mechanism is...