Morning Session (8:30-12:30)
Multivariate Statistics
Representations of distributions
- analytical (pdf, cdf, quantile, cf)
- Monte Carlo simulations
Copula-marginal factorization
- marginals/grades
- pdf, cdf, simulations of copulas
- special copulas
Dependence/concordance statistics
- Schweizer-Wolff measure
- Kendall tau
- Spearman rho
Summary statistics
- location-dispersion ellipsoid
- principal component factorization
- higher order statistics
Correlation: theory, practice and pitfalls
Multivariate distributions for the markets
- (matrix-variate) normal
- Student t and elliptical
- Log-distributions
- Wishart distribution
- Order statistics
- Mixture distributions |
Afternoon Session (14:00-18:00)
Multivariate Estimation
Estimators: definition and evaluation
- loss, bias, inefficiency, error
- generalized hypothesis testing
Non-parametric estimators
- order statistics and VaR estimator
- sample mean/covariance: best-fitting
ellipsoid
- sample factor loadings: ordinary
least squares
Multivariate MLE: location, scatter, loadings
- normal hypothesis: sample
estimators
- non-normal hypothesis: outlier
rejection
Multivariate shrinkage: location,
scatter, loadings
- Stein mean
- Ledoit-Wolf covariance
Multivariate robust: location, scatter, loadings
- assessing robustness: the influence
function
- M-robust estimators
- outlier detection and high-breakdown
ellipsoid
Multivariate Bayesian: location, scatter, loadings
- analytically tractable examples
- numerical techniques
Missing observations and unbalanced panels
- EM algorithm
- ML marginalization |