Covariance Matrix Estimation and Regularization for Finance
Description
Estimation and regularization for covariance matrix of asset
returns. For covariance matrix estimation, three major types of factor
models are included: macroeconomic factor model, fundamental factor model and
statistical factor model. For covariance matrix regularization, four regularized
estimators are included: banding, tapering, hard-thresholding and soft-
thresholding. The tuning parameters of these regularized estimators are selected
via cross-validation.