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An explicit expression for the Fisher information matrix of a multiple time series process. (English) Zbl 1092.62087

Summary: The principal result in this paper is concerned with the derivative of a vector with respect to a block vector or matrix. This is applied to the asymptotic Fisher information matrix (FIM) of a stationary vector autoregressive and moving average time series process (VARMA). Representations which can be used for computing the components of the FIM are then obtained. In a related paper of A. Klein [A generalization of Whittle’s formula for the information matrix of vector mixed time series. Linear Algebra Appl. 321, 197–208 (2000; Zbl 0966.62057)], the derivative is taken with respect to a vector. This is obtained by vectorizing the appropriate matrix products whereas in this paper the corresponding matrix products are left unchanged.

MSC:

62M10 Time series, auto-correlation, regression, etc. in statistics (GARCH)
26B12 Calculus of vector functions
15A69 Multilinear algebra, tensor calculus

Citations:

Zbl 0966.62057

References:

[1] Klein, A., A generalization of Whittle’s formula for the information matrix of vector mixed time series, Linear Algebra Appl., 321, 197-208 (2000) · Zbl 0966.62057
[2] V. Peterka, P. Vidinčev, Rational-fraction approximation of transfer functions, First IFAC Symposium on Identification in Automatic Control Systems, Prague, 1967.; V. Peterka, P. Vidinčev, Rational-fraction approximation of transfer functions, First IFAC Symposium on Identification in Automatic Control Systems, Prague, 1967.
[3] T. Söderström, Description of a program for integrating rational functions around the unit circle, Technical Report 8467R, Department of Technology, Uppsala University, 1984.; T. Söderström, Description of a program for integrating rational functions around the unit circle, Technical Report 8467R, Department of Technology, Uppsala University, 1984.
[4] Whittle, P., The analysis of multiple stationary time series, J. Royal Statist. Soc. B., 15, 125-139 (1953) · Zbl 0053.41002
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