Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/62240
Authors: 
Härdle, Wolfgang
Spokoiny, Vladimir G.
Teyssière, Gilles
Year of Publication: 
2000
Series/Report no.: 
Discussion Papers, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes 2000,6
Abstract: 
Let a process SI , ... ,ST obey the conditionally heteroskedastic equation St = Vt Et whcrc Et is a random noise and Vt is the volatility coefficient which in turn obeys an autoregression type equation log v t = w + a S t- l + nt with an additional noise nt. We consider the situation which the parameters w and a might also depend on the time t, and we study the problem of online estimation of current values of w = w(T) and a = a(T) from the observations SI , ... ,ST. We propose an adaptive method of estimation which does not use any information about time homogenity of the obscured process. We apply this model to two series of FX daily returns on DEM/USD and GBP/USD.
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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