Psychologische Studien belegen vielfältige Abweichungen menschlicher Denk- und Verhaltensweisen von den üblichen Rationalitätsannahmen ökonomischer Modelle. Die traditionelle Ökonomie begegnet diesen Hinweisen begrenzter Rationalität mit Zurückhaltung, auch wenn derartige Ansätze...

Indicators of trust, confidence, optimism or sentiment among consumers and/or investors, are published continuously in the mass media. More importantly, these indices seem not only to reflect how the state of the real economy is perceived by private agents, but can also help predict the future...

The aim of this paper is threefold: we first discuss the appropriateness of the traditional trust-game-tree for the analysis of trust relationships. Following the definition put forward by Lee et al. (2005) that confident expectations and a willingness to be vulnerable are critical components of...

Mit dem diesjährigen Nobelpreis für Wirtschaftswissenschaften wurden zwei Vertreter geehrt, die im Rahmen von zahllosen Serien von Individual- und Marktexperimenten Erkenntnisse der psychologischen Forschung in die Wirtschaftswissenschaften einbrachten. Welche Folgen hatte ihre Forschung für...

This paper draws a link between self-control problems and the contractual mechanisms of microcredit. We use a series of lab experiments in the field which were designed to elicit measures of time discounting on a sample of 573 individuals in rural Karnataka, India. Evidence from the experiments...

If producers have more information than consumers about goods' attributes, then they may use non-price (rather than price) adjustment mechanisms and, consequently, the market may reach a new equilibrium even if prices remain sticky. We study a situation where producers adjust the quantity (per...

The following paper is a theoretical introduction of the misinformation effect to behavioural finance. The misinformation effect causes a memory report regarding an event or particular knowledge to become contaminated with misleading information from another source. The paper aims to describe...

Die gemeinsame Studie des Instituts der deutschen Wirtschaft Köln und des Instituts für Wirtschafts- und Sozialpsychologie an der Universität zu Köln untersucht die negativen Auswirkungen staatlicher Eingriffe auf die Motivation und Leistungsfähigkeit der Empfänger staatlicher...

During the last two decades economists have made much progress in understanding incentives, contracts and organisations. Yet, they constrained their attention to a very narrow and empirically questionable view of human motivation. The purpose of this paper is to show that this narrow view of...