Basic confounding patterns for full-profile conjoint analyses based upon ranking are examined. It is shown that commonly used orthogonal main-effect designs can lead to biased part-worth estimates, especially to an underestimation of less important variables. An alternative design procedure is...

The traditional techniques of calculating quantity and price variances for analyzing deviations of realized profit contribution (actual) from the planned profit contribution only offer the benefit of identifying areas where problems may exist, rather than diagnosing the causes of these problems....

This paper presents a method for visualizing competitive market structures based on scanner panel date where asymmetries are taken into account. For this, I combined consumer choice models based on mixed logit models with three-mode principal component analysis. This approach can be used to...

Comparing groups with respect to hypothetical constructs requires that the measurement models are equal across groups. Otherwise conclusions drawn from the observed indicators regarding differences at the latent level (mean differences, differences in the structural relations) might be severly...

There are two main research traditions for analyzing market basket data that exist more or less independently from each other, namely exploratory and explanatory model types. Exploratory approaches are restricted to the task of discovering cross-category interrelationships and provide marketing...

Vvorliegende Artikel diskutiert Lösungsansätze amerikanischer und englischer Psychometriker zu den Problemen mit traditionellen Ratingskalen.

GfK, the German-based market research company, transformed itself into an SE in 2009. Management saw the change as reflecting GfK’s international perspectives and structure, although it also had the side effect of avoiding a major change in the composition of the supervisory board. The...

This study on the functioning of retail electricity markets for consumers in the EU is the follow up to the first market study conducted in 2009/2010, and published by the European Commission in 2010. The objectives of the current study are to investigate if a well-functioning electricity market...

Das Barometer zu den Verbrauchermärkten 2016 bietet auf der Grundlage von Daten, die im Jahr 2015 erhoben wurden, einen Überblick darüber, wie die Bürgerinnen und Bürger der EU die Leistung wichtiger Waren-und Dienstleistungsmärkte der Verbraucher beurteilen. Das Barometer dient zur...

Verbraucherbarometer sind ein wichtiges Instrument zur Überwachung der Lage der Verbraucher im Binnenmarkt und enthalten Informationen, die auf nationaler und auf europäischer Ebene in vielfältige Bereiche der Politik einfließen. Sie sind insoweit einzigartig, als sie Trends unter...