Robuta

https://www.econbiz.de/Record/approximating-volatilities-by-asymmetric-power-garch-functions-penzer-jeremy/10009440466 Approximating volatilities by asymmetric power GARCH functions - EconBiz ARCH/GARCH representations of financial series usually attempt to model the serial correlation structure of squared returns. Although it is undoubtedly true... approximatingvolatilitiesasymmetricpowergarch