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GLS based unit root tests for bounded processes
Carrión i Silvestre, Josep Lluís; Gadea Rivas, María Dolores
We show that the use of generalized least squares (GLS) detrending procedures leads to important empirical power gains compared to ordinary least squares (OLS) detrending method when testing the null hypothesis of unit root for bounded processes. The non-centrality parameter that is used in the GLS-detrending depends on the bounds, so that improvements on the statistical inference are to be expected if a case-speci.c parameter is used. This initial hypothesis is supported by the simulation experiment that has been conducted.
Anàlisi de sèries temporals
Anàlisi de regressió
Funcions analítiques
Operadors integrals
Time-series analysis
Regression analysis
Analytic functions
Integral operators
cc-by-nc-nd, (c) Carrión i Silvestre et al., 2013
Working Paper
Universitat de Barcelona. Institut de Recerca en Economia Aplicada Regional i Pública

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Carrión i Silvestre, Josep Lluís; Gadea Rivas, María Dolores