Reference : On Partial-Sum Processes of ARMAX Residuals
Scientific Presentations in Universities or Research Centers : Scientific presentation in universities or research centers
Business & economic sciences : Quantitative methods in economics & management
http://hdl.handle.net/10993/29900
On Partial-Sum Processes of ARMAX Residuals
English
Gronneberg []
Holcblat, Benjamin mailto [University of Luxembourg > Faculty of Law, Economics and Finance (FDEF) > Luxembourg School of Finance (LSF) >]
11-Feb-2017
International
Nuffield Econometric/INET Seminar at University of Oxford
11-02-2017
[en] RMAX process; Residuals; Autocorrelated errors; Infinite-variance errors; Seasonal dummy; Unit root; Polynomial time trend; CUSUM test; Misspecified ARMA; Change-point problems; Local power; Kernel estimation of ARMAX errors; Nonlinear ARMAX.
[en] In time series analysis and other setups, numerous inference procedures need to use residuals, instead of the unobserved errors. In the present paper, we establish general and versatile results regarding the limit of partial-sum processes of ARMAX residuals. Process limits based on residuals often do not correspond to process limits based on the error terms. To illustrate the generality and versatility of our results, we apply them to misspecified ARMA with correlated errors, nonlinear ARMAX, a range of ARMA processes with infinite-variance errors, ARMA with a unit root and a polynomial time-trend, or with seasonal dummy variables to obtain consistency of kernel estimation of the density of ARMAX errors, the asymptotic distribution of statistics useful for CUSUM tests and change-point problem type of tests, and some local power results.
http://hdl.handle.net/10993/29900

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