This paper outlines why program evaluation should follow well-respected scientific standards and why it should be performed by independent researchers.

Die vorliegende Arbeit analysiert Vor- und Nachteile des Einsatz objektorientierter Konzepte bei der Entwicklung von EDV-unterstützten Informationssystemen.

Vorliegendes Arbeitspapier beschäftigt sich mit Computer Assisted Learning (CAL). Dabei soll besonders auf den Bereich der Berechnungsexperimente eingegangen werden.

We investigate an experimental representatives' trust game which resembles trust relationships between representatives of organisations. Personality traits of subjects are elicited by a personality questionnaire (Cattell's 16 PF-R) which is well established in personnel psychology. Linking the...

We present a model for the α-beauty contest that explains common patterns in ex-perimental data of one-shot and iterative games. The approach is based on two basic assumptions. First, players iteratively update their recent guesses. Second, players estimate intervals rather than exact numbers...

Based on an experimental analysis of a simple monetary economy we argue that a monetary system is more stable than one would expect from individual rationality. Weshow that positive reciprocity stabilizes the monetary system, provided everyparticipant considers accepting money as a reasonable...

This paper provides a comparison of tax morale between inhabitants of East and WestGermany in its post-reunification period, using three World Values Survey/European ValuesSurvey waves between 1990 and 1999. German reunification is particularly interesting for theanalysis of tax morale as it is...

The quadratic scoring rule (QSR) is often used to guarantee an incentive compatibleelicitation of subjective probabilities over events. Experimentalists haveregularly not been able to ensure that subjects fully comprehend the consequencesof their actions on payoffs given the rules of the games....