Das in Finanzmarktdaten zu beobachtende volatility-clustering impliziert, daß große Renditeschocks bei der Preisbildung die Wahrscheinlichkeit einer hohen zukünftigen Volatilität steigern. Ausgehend von den von Engle (1982) vorgeschlagenen ARCH-Modellen hat sich eine ganze Reihe von...

Regarding to the success of a company acting on foreign markets, an intercultural competent staff has become progressively important. Therefore, management studies have paid an increased empirical attention on Intercultural Competence. The model of Intercultural Sensitivity by Chen and Starosta,...

This booklet represents the short version of the START-procedure for the risk assessment of mental stress at the work. This procedure has been developed in the framework of a research project funded by the Hans-Böckler-Foundation.The research project aimed at developing strategies which...

Private households' demand for support in housekeeping, childcare and care of elderly is increasing. In Germany, it is met mainly by undocumented work. The report shows that this constellation is eased by legal and institutional regulations: Social as well as tax legislation promote a "marginal...

Die Corona-Pandemie sowie die zu ihrer Eindämmung in vielen Staaten getroffenen Maßnahmen gehen mit einer massiven Beeinträchtigung der Wirtschaftsaktivität einher. In diesem Papier werden die verschiedenen volkswirtschaftlichen Einschränkungen diskutiert, denen Unternehmen, Arbeitnehmer...

[Introduction] The Russian war of aggression against Ukraine since 24 February 2022 has intensified the discussion of Europe's reliance on energy imports from Russia. A ban on Russian imports of oil, natural gas and coal has already been imposed by the United States, while the United Kingdom...

Online platforms have become one of the most important business models of the digital economy and likely counteracted some of the drop in economic activity during the COVID-19 pandemic. At the same time, platform markets are subject to controversial debates about market power and the need for...

Der vielschichtige und dynamische Prozess der Globalisierung, der nicht zuletzt durch eine wachsende Zahl global agierender Konzerne und durch deren veränderte transnationale Strukturen und Strategien vorangetrieben wird, wirft die Frage nach der Entwicklung transnationaler Arbeitsbeziehungen...

This booklet represents the short version of the START-procedure for the risk assessment of mental stress at the work. This procedure has been developed in the framework of a research project funded by the Hans-Böckler-Foundation.The research project aimed at developing strategies which...

Does time-varying business volatility affect the price setting of firms and thus the transmission of monetary policy into the real economy? To address this question, we estimate from the firm-level micro data of the German IFO Business Climate Survey the impact of idiosyncratic volatility on the...