Das Umlage- und das Kapitaldeckungsverfahren werden verglichen. Das Kapitaldeckungsverfahren hat eine größere Rendite für den einzelnen und bringt gesamtwirtschaftliche Effizienzgewinne mit sich: Es wird mehr Kapital gebildet, und Verzerrungen am Arbeitsmarkt werden beseitigt. Bei einem...

This paper examines the role of the health gradient – the positive correlation between household income and health – in individual retirement behavior, using data from the German Socio-economic Panel (GSOEP). We first estimate agegroup-specific health gradients and find their slope increases...

In this paper we analyze the money demand functions of the four largest EMU countries and of the four-country (EMU-4) aggregate. We identify reasonable and stable money demand relationships for Germany, France and Spain as well as the EMU-4 aggregate. For the case of Italy, results are less...

We contribute to the nascent literature on the heterogeneity of multinational enterprises (MNEs) and the relevance of firm characteristics for analyzing the determinants of outward foreign direct investment (FDI). The focus is on the role of firm-level heterogeneity when MNEs decide on the share...

We use weekly survey data on short-term and medium-term sentiment of German investors in order to study the causal relationship between investors' mood and subsequent stock price changes. In contrast to extant literature for other countries, a tri-variate vector autoregression for short-run...

Previous literature largely ignores the heterogeneity of aid channels used by each single donor country. We estimate Tobit models to assess the relative importance of recipient need, recipient merit and self-interest of donors for various channels of official and private German aid across a...

This paper uses an oligopoly model with heterogeneous firms to examine how an industry adjusts to rising import competition. The model predicts that in the short run the least efficient firms in the industry become inactive, surviving firms face a fall in output, mark-ups and profits, and the...