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...

"In aggregate models, costs that penalise changes in investment--investment adjustment costs-- have been introduced to help account for a variety of business cycle and asset market phenomena. In this paper, we evaluate empirical evidence for these types of costs using US and UK industry data. We...