Multivariate Bilateral Gamma, Copulas, CoSkews and CoKurtosis
18 Pages Posted: 22 Jun 2020
Date Written: May 27, 2020
Correlation graphs are introduced to delineate the levels observed in data and models for return and squared return correlations. A sample of 2048 representative pairs of equity assets is selected from a possible collection of 381,501 pairs by quantization. Five copulas are estimated and simulated on these pairs of returns, the Gaussian, t-copula, Clayton, Gumbel and Frank. Additionally the multivariate bilateral gamma (MBG) model that introduces dependence via common time changes is also fit and simulated. Results of fit statistics on returns and CoSkew and CoKurtosis pairs are reported. The general ordering of the models is MBG, t-copula, followed by the Gaussian, Frank, Gumbel and Clayton copulas.
Keywords: Multivariate Variance Gamma, Tail Probabilities, Bivariate Characteristic Function Estimation.
JEL Classification: G11, G12, G13
Suggested Citation: Suggested Citation