Aggregation may be harmful but cannot always be avoided in the analysis of complex econometric models. It should be carried out intelligently by choosing ein aggregative model optimally for modes of aggregation speeified in advance, i.e. minimizing the bias introduced by aggregation and...

A widely used method in the analysis of complex econometric models is to replace the "true model" by an aggregative one in which the variables are grouped and replaced by sums or weighted averages of the variables in each group. The analysis of the problem of choosing an aggregative model...

Component commonality - the use of the same version of a component across multiple products - is being increasingly considered as a promising way to offer high external variety while retaining low internal variety in operations. However, increasing commonality has both positive and negative cost...

In dem Beitrag erfolgt eine Analyse der Erreichbarkeit von Arbeitsplätzen in Schleswig-Holstein anhand verschiedener Messkonzepte. Die Untersuchung basiert auf einer Diplomarbeit, die am Institut für Regionalforschung der Christian-Albrechts-Universität zu Kiel entstanden ist. Die für die...