Drei Probleme der Risikobewertung bei öffentlichen Investitionen werden behandelt. Erstes Thema ist die Frage nach der richtigen Diskontrate bei unsicherem Wirtschaftswachstum. Zentrales Ergebnis ist, dass die übliche Ramsey-Gleichung bei Unsicherheit keine Gültigkeit mehr hat und einer...

The measurement of the effective tax burden on profitable investments encounters many methodological problems. Some of them can be overcome by using an approach presented by Devereux and Griffith. Based on their methodology, we develop a measure for effective tax rates for profitable investments...

We construct a measure of the short-term world interest rate using principal component analysis. Drawing on real interest rate data for 18 OECD countries for the period 1985 - 2008, persistent deviations from the world interest rate that cannot be explained by movements in the real exchange rate...

Overnight money market rates are the predominant operational target of monetary policy. As a consequence, central banks have redesigned the implementation of monetary policy to keep the deviations of the overnight rate from the key policy rate small and short-lived. This paper uses fractional...