Why should risk manager should pay attention when using the statistical tools ?
Answers:
Because every existence have a chubby tail. No concern how statistically unlikely an event is, those events come to pass and are more adjectives than one may dream up.
I feel the software used by these manager are not completely error free, at hand are lots of cases within olden times within which companies and institutions hav lost bulk of money because of model error, which resources when the software is designed by engineers it is not tested b'coz of background availability and as time pass the manager come's to know something like its loopeholes, what is call model error.