promising class of models are the hierarchical Archimedean copulae (HAC) that allow for non-exchangeable and non … for stock indices the copula parameter changes dynam- ically but the hierarchical structure is constant over time …

copulabased non linear quantile regression known as copula quantile regression (CQR).The discussion of the properties of the …

countries, using copula models. We used the Normal, Plackett, rotated-Gumbel, and Student's t copulas to measure the constant … dependence, and we captured the dynamic dependence using the Generalized Autoregressive Score with the Student's t copula. We … at Risk and Expected Shortfall from the time-varying copula models. We found that both reach low values when the oil …