Ghysels, Eric; Wang, Fangfang - In: Journal of Business & Economic Statistics 32 (2014) 1, pp. 88-111
Suppose one uses a parametric density function based on the first four (conditional) moments to model risk. There are quite a few densities to choose from and depending on which is selected, one implicitly assumes very different tail behavior and very different feasible skewness/kurtosis...