In the literature there are basically two main approaches that explain the positive link between the level of education and wages: the human-capital theory and the signalling/screening (collectively known as sorting) theory. We highlight the similarity and differences between these theories and...

This paper analyses the effects of education signals for Ethnic Germans and Germans without a migration background (Native Germans"). We base our analysis on a sorting model with productivity enhancing effects of education. We compare whether the signalling value differs between the migrants and...

Das Papier analysiert die Auswirkungen von Signalen über das erreichte Bildungsniveau von (Spät-)Aussiedlern und 'übrigen Deutschen'. Die Analyse beruht auf der Sorting-Theorie mit produktivitätserhöhenden Effekten der Bildung. Aus dieser theoretischen Analyse folgen vier Hypothesen,...

This paper further develops the standard modelling of information exchange between firms in the presence of cost uncertainty. In order to avoid consistency problems, we replace the normal distribution of the random variables, commonly used because of its convenient mathematical properties, by an...

Unternehmen müssen nicht immer Kollusionsabsichten verfolgen, wenn sie untereinander Informationen austauschen. Dieser Beitrag zeigt, daß bei Nachfrageunsicherheit auch strikt kompetitive Konkurrenten private Informationen bezüglich ihrer Nachfragebedingungen preisgeben. Dies läßt sich in...

This paper further develops the standard modelling of information exchange between firms in the presence of demand uncertainty which applies to firms in new industries and insecure regions or markets. We replace the normal distribution of the random variables, commonly used because of its...

Compatibility of network products is an important issue in markets for communication technology as well as hard- and software products. Empirical findings suggest that firms competing in these markets typically choose intermediate degrees of product compatibility. We present a strategic...

The paper presents a dynamic general-equilibrium model of education, quality and variety innovation, and scale-invariant growth. We consider endogenous humancapital accumulation in an educational sector and quality and variety innovation in two separate R&D sectors. In the balanced growth...