Correlation order, merging and diversification |
| |
Authors: | Jan Dhaene Michel Denuit |
| |
Institution: | a Katholieke Universiteit Leuven, Belgium b Université Catholique de Louvain, Belgium c Vrije Universiteit Brussel, Belgium |
| |
Abstract: | We investigate the influence of the dependence between random losses on the shortfall and on the diversification benefit that arises from merging these losses.We prove that increasing the dependence between losses, expressed in terms of correlation order, has an increasing effect on the shortfall, expressed in terms of an appropriate integral stochastic order. Furthermore, increasing the dependence between losses decreases the diversification benefit.We also consider merging comonotonic losses and show that even in this extreme case a strictly positive diversification benefit will often arise. |
| |
Keywords: | Correlation order Supermodularity Shortfall risk Diversification Comonotonicity |
本文献已被 ScienceDirect 等数据库收录! |
|