variance covarianceの例文
- The Variance Covariance and Historical Simulation, Monte-Carlo simulations with well-specified multivariate models are an excellent alternative.
- Estimation of VaR or CVaR for large portfolios of assets using the Variance Covariance matrix may be inappropriate if the underlying returns distributions exhibit asymmetric dependence.
- Not accounting for these attributes lead to severe estimation error in the correlation and Variance Covariance that have negative biases ( as much as 70 % of the true values ).
- For example, to improve the estimation of the Variance Covariance matrix, one can generate a forecast of asset distributions via Monte-Carlo simulation based upon the Gaussian copula and well-specified marginals.