Garcia, René; Renault, Éric - Centre Interuniversitaire de Recherche en Analyse des … - 1997
Recently, Duan (1995) proposed a GARCH option pricing formula and a corresponding hedging formula. In a similar ARCH …-type model for the underlying asset, Kallsen and Taqqu (1994) arrive at a hedging formula different from Duan's , although they … and Taqqu corresponds to the usual concept of hedging in the context of ARCH-type models. We argue however that Duan …