Is it possible to count the earth’s population from outer space? The answer is yes, in urban areas it is possible. However, this can only be done in an indirect manner: by identifying physical objects in the urban landscape in earth observation data and using these to estimate the number of...

Remote sensing data and methods are widely deployed in order to contribute to the assessment of numerous components of earthquake risk. While for earthquake hazard-related investigations, the use of remotely sensed data is an established methodological element with a long research tradition,...

The widespread use of composite indices has often been motivated by their practicality to quantify qualitative data in an easy and intuitive way. At the same time, this approach has been challenged due to the subjective and partly ad hoc nature of computation, aggregation and weighting...

Vor dem Hintergrund der Anhebung der gesetzlichen Altersgrenzen wird oft eine Verbesserung der Möglichkeiten des gleitenden Übergangs in die Rente für diejenigen gefordert, die im Alter nicht mehr so viel arbeiten wollen oder können. In dieser Studie werden Optionen eines gleitenden...

Report based on a study conducted for the European Parliament, Bonn 2010 (188 pages)

This paper analyzes the effectiveness of the tax and transfer systems in the European Union and the US to act as an automatic stabilizer in the current economic crisis. We find that automatic stabilizers absorb 38 per cent of a proportional income shock in the EU, compared to 32 per cent in the...

This paper analyzes the effectiveness of the tax and transfer systems in the European Union and the US to act as an automatic stabilizer in the current economic crisis. We find that automatic stabilizers absorb 38 per cent of a proportional income shock in the EU, compared to 32 per cent in the...

Die Schuldenstände sind in vielen Industrieländern auf Rekordhöhen angestiegen. Dies erfordert disziplinierte Konsolidierungsanstrengungen, die im derzeitigen wirtschaftlichen Umfeld allerdings zu einem vermeintlich ungünstigen Zeitpunkt kommen. Die G20-Länder sind aufgefordert, die...

Debt-to-GDP ratios have grown to unprecedented levels in many industrialized economies. This requires disciplined consolidation efforts which are, however, supposed to come now at the wrong time with the economic recovery being fragile. The countries forming the G20 need to make sure the...

Following the report of the Stiglitz Commission, measuring and comparing well-being across countries has gained renewed interest. Yet, analyses that go beyond income and incorporate non-market dimensions of welfare most often rely on the assumption of identical preferences to avoid the...