"In der Diskussion über die Integration von Migranten werden die Bedeutung beruflicher Qualifikationen und ausreichender Kenntnisse der deutschen Sprache als besonders wichtige Voraussetzungen für die Teilnahme am Arbeitsmarkt dargestellt. Seit September 2004 kann die Bundesagentur für Arbeit...

This paper investigates whether failure in innovation at the firm level can account for cross-country heterogeneity in manufacturing productivity growth. There is no strong evidence in the literature on the existence of such link. Our work, however, differs in a number of ways from much of the...

Cross-national comparative analysis of generalised social trust in 60 countries shows that it is associated with, and is an integral part of, a tight syndrome of cultural, social, economic, and political variables. High trust countries are characterized by ethnic homogeneity, Protestant...

In this paper we investigate crude oil and products price dynamics. We present a comparison among ten price series of crude oils and fourteen price series of petroleum products, considering four distinct market areas (Mediterranean, North Western Europe, Latin America and North America) over the...