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This paper examines optimal portfolio selection using quantile-based risk measures such as Valueat-Risk (VaR) and Conditional Value-at-Risk (CVaR). We address the case of a singular covariance matrix of asset returns, which leads to an optimization problem with infinitely many solutions. An...
Persistent link: https://www.econbiz.de/10015084447
modelling that enables stochastic structural change in model parameters and on model estimation by Bayesian or non …-parametric kernel methods. In the context of the estimation of covariance matrices of large dimensional panels, such data requires … applicable in econometric analysis beyond estimation of large covariance matrices. We discuss the utility of the robust …
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We propose a new algorithm which allows easy estimation of Vector Autoregressions (VARs) featuring asymmetric priors …
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This paper extends the procedure developed by Jurado et al. (2015) to allow the estimation of measures of uncertainty …
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