Showing 1 - 10 of 93
-specific extreme market risks. First, we define tail market risk that captures dependence between extremely low market as well as asset … returns. Second, extreme market volatility risk is characterized by dependence between extremely high increments of market … that both frequency-specific tail market risk and extreme volatility risks are significantly priced and our five …
Persistent link: https://www.econbiz.de/10012009758
terms from regressions of hedge fund returns on risk factors (the "alphas") collected from 74 studies, we document a strong …
Persistent link: https://www.econbiz.de/10014521048
The paper focused on measuring efficiency of investment strategies and portfolio optimization based on dynamic portfolio formation using the global minimum variance approach in a region of central European countries. The paper analyses DCC GARCH model, which was employed in order to obtain...
Persistent link: https://www.econbiz.de/10009786883
This paper focuses on two methods for optimum portfolio selection. We compare Mean-Variance method with Mean-VaR method by the means of investment simulation, based on Czech financial market data from turbulent market periods of the year 2007 and the year 2008. We compare both strategies, basing...
Persistent link: https://www.econbiz.de/10008696764
We introduce a methodology for dynamic modelling and forecasting of realized covariance matrices based on generalization of the heterogeneous autoregressive model (HAR) for realized volatility. Multivariate extensions of popular HAR framework leave substantial information unmodeled in residuals....
Persistent link: https://www.econbiz.de/10010429957
model is able to accommodate investors who exhibit different risk behaviors (from conservatives to risky investors) by …
Persistent link: https://www.econbiz.de/10012807295
Quantitative investment strategies are often selected from a broad class of candidate models estimated and tested on historical data. Standard statistical technique to prevent model overfitting such as out-sample back-testing turns out to be unreliable in the situation when selection is based on...
Persistent link: https://www.econbiz.de/10011722180
due to heightened correlations and similar risk features between asset classes, and rather the research delves into risk …
Persistent link: https://www.econbiz.de/10014532001
issuers, we provide evidence to support a statistically significant negative downgrade risk premium in excess returns …, suggesting that stocks at higher risk of failure tend to deliver lower returns. The performance of the model remains robust …
Persistent link: https://www.econbiz.de/10012242861
A key parameter in the analysis of wage inequality is the elasticity of substitution between skilled and unskilled labor. We question the common view that the elasticity exceeds 1. Two biases, publication and attenuation, conspire to pull the mean elasticity reported in the literature to 1.9....
Persistent link: https://www.econbiz.de/10012271825