E-nstructions facilitates the use of electronic instructions in computerized laboratory ex-periments in social sciences. In this article I provide a set of guidelines for the installationand the use of E-nstructions.

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.

We describe a simulation-based algorithm for Bayesian estimation of structuraleffects in models where the outcome of interest and an endogenous treatment variableare ordered. Our algorithm makes use of a reparameterization, suggested by Nandramand Chen (1996) and Li and Tobias (2005) in the...

Genetically modified (GM) foods have caused many controversies. One important controversy relates to tolerance?the impurity rate that is tolerated before a commodity must be labeled as genetically modified. Currently, the United States does not have a specific tolerance or threshold level for GM...