A new model class for univariate asset returns is proposed which involves the use of mixtures of stable Paretian distributions, and readily lends itself to use in a multivariate context for portfolio selection. The model nests numerous ones currently in use, and is shown to outperform all its...

The estimation of multivariate GARCH models remains a challenging task, even in modern computer environments. This manuscript shows how Independent Component Analysis can be used to estimate the Generalized Orthogonal GARCH model in a fraction of the time otherwise required. The proposed method...

We show that on-demand insurance contracts, an innovative form of coverage recently introduced through the InsurTech sector, can serve as a screening device. To this end, we develop a new adverse selection model consistent with Wilson (1977), Miyazaki (1977) and Spence (1978). Consumers have...