1Bollerslev T.Generalized autoregressive conditional heteroskedasticity[J].Journal of Econometrics,1986,31:307-327.
2Zakoian J M.Threshold heteroskedastic models[J].Journal of Economic Dynamics and Control,1994,18:931-955.
3Glosten L,Jagannathan R,Runkle D.On the relations between the expected value and the volatility on the nominal excess returns on stocks[J].Journal of Finance,1993,48:1779-1801.
4Nelson D B.Conditional heteroskedastieity in asset returns:a new approach[J].Econometrica,1990,59:347-370.