State of the Art Unit Root Tests and Purchasing Power Parity
Recently, Taylor (2002) concludes that long run PPP held over the 20th century for a set of 19 long term real exchange rates. We argue that this conclusion is quite sensitive to the use of sub-optimal lag selection in unit root tests. Using superior lag selection methods,we find that long run PPP held for just over half of the real exchange rates in Taylor’s sample.
Year of publication: |
2004-04
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Authors: | Lopez, Claude ; Murray, Christian J. ; Papell, David H. |
Institutions: | Department of Economics, College of Business |
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