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Revista Colombiana de Estadística
Print version ISSN 0120-1751
Abstract
GARCIA-HIERNAUX, ALFREDO; CASALS, JOSÉ and JEREZ, MIGUEL. Subspace-Based Methods to Determine Unit Roots and Cointegrating Ranks. Rev.Colomb.Estad. [online]. 2007, vol.30, n.1, pp.77-96. ISSN 0120-1751.
We propose a new procedure to detect unit roots based on subspace methods. It has three main original aspects. First, the same method can be applied to single or multiple time series. Second, it uses a flexible family of information criteria, which loss functions can be adapted to the statistical properties of the data. Last, it does not require the specification of a stochastic process for the series analyzed. This procedure is consistent and a simulation exercise shows that it has good finite sample properties. Its application is illustrated with the analysis of several real time series
Keywords : State space models; Time series analysis; Information criteria; Loss function.