So far studies estimating sales response functions on the basis of store-specific data either consider heterogeneity or functional flexibility. That is why in this contribution a model is developed possessing both these features. It is a multilayer perceptron with store-specific coefficients...

Dhrymes (1994, Econometric Theory, 10, 254-285) demonstrates the arising identification and estimation problems in singular equation systems when the error vector obeys an autoregressive scheme, as an extension of restricted least squares. Unfortunately, his main theorem concerning the...

This paper replaces increasing product variety with quality upgrading in the Romer (1990) model. We show that the range of parameters for which a steady state exists can be divided into two subspaces with well-behaved comparative statics and saddle-point dynamics in one subspace, but with...

Das besondere Kirchgeld in glaubensverschiedener Ehe verzerrt das Verhalten von Steuerpflichtigen. Es verteuert den Kirchenaustritt eines einzelnen Ehegatten und bietet Anreize für die Steuerpflichtigen, ihre wirtschaftlichen Aktivitäten einzuschränken. In einigen Fällen ist sogar eine...

The Vehicle Routing Problem (VRP) is one of the most studied problems in the field of Operations Research. Closely related to the VRP is the Capacitated Clustering Problem (CCP). The VRP can be considered as an 'extension' of the CCP in the way that for each cluster in the CCP solution,...

The dynamics of most prominent endogenous growth models are well understood. One notable exception is the Jones (1995) R&D growth model. This paper provides an analytical treatment of this model's transitional dynamics. It is shown that, given constant returns to labor in R&D (as conventionally...

Based on CV information of tenured professors and post-doc researchers in the field of economics at German universities we construct a unique data set. This data set contains detailed information on the career path and on personal characteristics of individuals. Using this data we analyse the...

In diesem Beitrag werden die wichtigsten Erkenntnisse zu Ausmaß und Ursachen der strukturellen Arbeitslosigkeit in Europa vor dem Hintergrund eines einheitlichen theoretischen Bezugrahmens zusammengefasst, erklärt und bewertet. Die strukturelle Arbeitslosigkeit wird in der Literatur...

A new econometric approach to the analysis of downward nominal wage rigidity in micro data is proposed, the kernel-location approach. It combines kernel-density estimation and the principle of joint variation of location and shape of the distribution of per cent annual nominal wage changes. The...

Dieser Beitrag analysiert die Existenz und das Ausmaß nach unten starrer Nominallöhne, sowie deren realwirtschaftliche Implikationen für den deutschen Arbeitsmarkt. Unter Verwendung von drei alternativen Modellvarianten für die proportionale Abwärtsnominallohnrigidität wurde auf Grundlage...