This paper estimates a structural dynamic life-cycle model of outmigration where, in each period, immigrants choose whether to work in the host country, not to work but remain in the host country, or outmigrate. The model incorporates several features of existing life-cycle theories of...

We consider a problem where different classes of customers can book different types of service in advance and the service company has to respond immediately to the booking request confirming or rejecting it. Due to the possibility of cancellations before the day of service, or no-shows at the...

In this paper, we present an innovative electricity spot price model, wherein the prices explicitly depend on the realized wind power production. The proposed arithmetic multi-factor approach captures numerous stylized facts of empirical spot price behavior like seasonal variations,...

Germany has suffered an inflationary shock broadly commensurate with that of the Euro Area as a whole, with energy playing a slightly larger, food a somewhat smaller than average role. Because of differences in consumption patterns, the current inflationary surge hits low-income households...

In der aktuellen Debatte zur Rekommunalisierung von Stromanbietern wird häufig das Argument der sicheren Versorgung zu niedrigen Preisen von Vertretern öffentlicher Eigentümer angeführt. Während die sichere Belieferung mit Strom im Rahmen der Grundversorgung gesetzlich vorgeschrieben ist,...

Nanotechnologie ist eine technologische Innovation, die aufgrund ihrer absehbaren vielfältigen Anwendungsmöglichkeiten große Hoffnungen auf neue Wachstumschancen der Wirtschaft weckt. Derzeit befindet sich die Nanotechnologie noch überwiegend in einer Phase der Grundlagenforschung, in...

Die Bundesregierung hat vor Kurzem eine "Digitale Agenda" vorgelegt. Intelligente Hard- und Software und die Verknüpfung immer größerer Datensätze bieten erhebliche ökonomische Potenziale und bilden die Basis für Innovationen. Allerdings müssen hierfür auch die technischen...

This paper discusses the role of so-called national champions within the context of the EU's ambitious goal to become the most competitive and dynamic knowledge-based economic region in the world by 2010. We find football to be a useful analogy in our discussion of national champions. There are...

This paper discusses aspects related to the green technology sector in Germany. In a ?rst step institutional reforms enabling diffusion of green technologies are analysed. Cost arguments are also taken into account. In a second step a theoretical model developed by Tanguay et al. (2004) is...

This study is about structural change in the energy system. In a first step an econometric model is presented and in a second step diffusion of GTs is embedded theoretically. By focusing on different green technology industries (GT sector) in Germany, we analyze how policy induced demand...