This paper investigates the hedging effectiveness of a dynamic moving window OLS hedging model, formed using wavelet decomposed time-series. The wavelet transform is applied to calculate the appropriate dynamic minimum-variance hedge ratio for various hedging horizons for a number of assets. The...

We assess the ability of minimum-variance portfolio allocation strategies accounting for time-varying correlation between assets to provide performance benefits relative to an equally-weighted portfolio. Prior to transaction costs correlation-based strategies emphatically outperform the...

We re-examine diversification benefits of investing in commodities and currencies by considering a risk-averse investor with mean-variance preferences who exploits the possibility of predictable time variation in asset return means, variances, and covariances. We implement unconditional and...

The evidence for international diversification as a means to curtail portfolio risk relies predominantly on short-run data. In this paper, we examine the extent to which the risk reduction benefits of international investment hold in the long-run. Employing a multi-horizon non-parametric filter,...

We estimate trends in diversification for equity, debt, and real estate within and across countries. After 2000, we uncover a marked and near ubiquitous decline in diversification, which coincides with sharply higher levels of investment risk. This decline is associated with country economic...