Bernardi, Enrico; Falangi, Federico; Romagnoli, Silvia - In: Insurance: Mathematics and Economics 61 (2015) C, pp. 155-169
We propose a new model for the aggregation of risks that is very flexible and useful in high dimensional problems. We propose a copula-based model that is both hierarchical and hybrid (HYC for short), because: (i) the dependence structure is modeled as a hierarchical copula, (ii) it unifies the...