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We compare the performance of popular covariance forecasting models in the context of a portfolio of major European equity indices. We find that models based on high-frequency data offer a clear advantage in terms of statistical accuracy. They also yield more theoretically consistent predictions...
Persistent link: https://www.econbiz.de/10012915984
equivocal empirical evidence reported by several authors about the correlation of performance measures with the Sharpe ratio … will fail. The paper shows that for large sample sizes the correlation between pairs of performance measures that are … functions of the Sharpe ratio is unity. The correct null hypothesis for tests of correlation is therefore ρ=1. Two multivariate …
Persistent link: https://www.econbiz.de/10012970408
Deriving estimators from historical data is common practice in applied quantitative finance. The availability of ever larger data sets and easier access to statistical algorithms has also led to an increased usage of historical estimators. In this research note, we illustrate how to assess the...
Persistent link: https://www.econbiz.de/10014236566
in specific correlation dynamics. A strong implication emerges: during the period under research, and from a different …
Persistent link: https://www.econbiz.de/10010407524
We assess the ability of minimum-variance portfolio allocation strategies accounting for time-varying correlation … correlation-based strategies emphatically outperform the equally-weighted benchmark. This finding is strongest for short horizon … correlation forecasts and attributed to dynamic correlation as opposed to variance forecasts. Thus, estimation error is not found …
Persistent link: https://www.econbiz.de/10012959226
Investors rely on the stock-bond correlation for a variety of tasks, such as forming optimal portfolios, designing … hedging strategies, and assessing risk. Most investors estimate the stock-bond correlation simply by extrapolating the … historical correlation of monthly returns and assume that this correlation best characterizes the correlation of future, annual …
Persistent link: https://www.econbiz.de/10012225162
A time-series basis decomposition and trend extraction technique known as Empirical Mode Decomposition (EMD), designed for multi-scale time-frequency decomposition in non-stationary time-series settings, will be combined with Regularised Covariance Regression (RCR) methods to produce a framework...
Persistent link: https://www.econbiz.de/10014348857
as t-statistics, and instead evaluate models using the correlation between their out-of-sample predictions of the future …
Persistent link: https://www.econbiz.de/10012864087
The equity premium is a key parameter in asset allocation policies. There is a vigorous debate in the literature regarding the actual measurement of the equity premium, its size and the determinants of its variation. This study aims to take stock of this literature by means of a meta-analysis....
Persistent link: https://www.econbiz.de/10011381035
We examine how the publication of intentional financial crimes committed by listed firms is interpreted by financial markets, using a systematic and quantitative review of existing empirical studies. Specifically, we conduct a meta-regression analysis and investigate the extent and nature of the...
Persistent link: https://www.econbiz.de/10012297534