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Quasi purchasing power parity

✍ Scribed by Natalie D. Hegwood; David H. Papell


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
188 KB
Volume
3
Category
Article
ISSN
1076-9307

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✦ Synopsis


Several recent studies have found evidence of purchasing power parity by using long time series of data to combat the low power of unit root tests. The ability to reject unit roots in real exchange rates, however, only implies that PPP holds in the absence of structural change. We test for multiple structural changes in six real exchange rates, and find strong evidence against both the unit root and the no-structural-change hypotheses. We call this result quasi purchasing power parity. When structural change is accounted for, real exchange rates display mean reversion that is much faster than previously calculated.


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