Testing for near I(2) trends when the signal-to-noise ratio is small

Researchers seldom find evidence of I(2) in exchange rates, prices, and other macroeconomics time series when they test the order of integration using univariate Dickey-Fuller tests. In contrast, when using the multivariate ML trace test they frequently find double unit roots in the data. The paper demonstrates by simulations that this often happens when the signal-to-noise ratio is small

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Year of publication:	2014
Authors:	Juselius, Katarina
Published in:	Economics - The Open-Access, Open-Assessment E-Journal. - Institut für Weltwirtschaft (IfW), ISSN 1864-6042. - Vol. 8.2014, 2014-21, p. 1-30
Publisher:	Institut für Weltwirtschaft (IfW)
Subject:	Univariate and multivariate unit root tests \| double unit roots \| near I(2)

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Extent:	application/pdf
Type of publication:	Article
Other identifiers:	10.5018/economics-ejournal.ja.2014-21 [DOI]
Classification:	C1 - Econometric and Statistical Methods: General ; c18 ; C22 - Time-Series Models ; C32 - Time-Series Models ; C52 - Model Evaluation and Testing
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010954788