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Autor:innen: 
Erscheinungsjahr: 
2000
Schriftenreihe/Nr.: 
SFB 373 Discussion Paper No. 2000,68
Verlag: 
Humboldt University of Berlin, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes, Berlin
Zusammenfassung: 
In this article we model the log of the U.S. and the U.K. real oil prices in terms of fractionally integrated processes with a mean shift. We use different versions of the tests of Robinson (1994), which have standard null and local limit distributions. The results indicate that if we model the series without a mean shift, they are both nonstationary I(1). However, allowing for a mean shift during the oil crises, they become fractionally integrated with an order of integration smaller than one and thus, showing mean reverting behaviour.
Schlagwörter: 
long memory
fractional integration
mean shift
real oil prices
JEL: 
C22
Persistent Identifier der Erstveröffentlichung: 
Dokumentart: 
Working Paper

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