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Autor:innen: 
Erscheinungsjahr: 
2002
Schriftenreihe/Nr.: 
Reihe Ökonomie / Economics Series No. 117
Verlag: 
Institute for Advanced Studies (IHS), Vienna
Zusammenfassung: 
In systems of variables with a specified or already identified cointegrating rank, stationarity of component variates can be tested by a simple restriction test. The implied decision is often in conflict with the outcome of unit root tests on the same variables. Using a framework of Bayes testing and decision contours, this paper searches for a solution to such conflict situations in sample sizes of empirical relevance. It evolves from the decision contour evaluations that the best test to be used jointly with a restriction test on self-cointegration is a modified version of the Dickey-Fuller test that accounts for the other system variables, whereas strictly univariate unit-root tests do not help much in the decision of interest.
Schlagwörter: 
Bayes test
unit roots
cointegration
decision contours
JEL: 
C11
C12
C15
C32
Dokumentart: 
Working Paper

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