HOW PUZZLING IS THE PPP PUZZLE? AN ALTERNATIVE HALF-LIFE MEASURE OF CONVERGENCE TO PPP
Article first published online: 20 JAN 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Journal of Applied Econometrics
Volume 28, Issue 3, pages 435–457, April/May 2013
How to Cite
Chortareas, G. and Kapetanios, G. (2013), HOW PUZZLING IS THE PPP PUZZLE? AN ALTERNATIVE HALF-LIFE MEASURE OF CONVERGENCE TO PPP. J. Appl. Econ., 28: 435–457. doi: 10.1002/jae.2261
- Issue published online: 26 MAR 2013
- Article first published online: 20 JAN 2012
- Manuscript Revised: 3 JUL 2011
- Manuscript Received: 2 SEP 2009
Evidence of lengthy half-lives for real exchange rates in the presence of a high degree of exchange rate volatility has been considered as one of the most puzzling empirical regularities in international macroeconomics. This paper suggests that the measure of half-life used in the literature might be problematic and proposes alternative measures with desirable properties. Their focus on the cumulative effects of the shocks distinguishes them from the measures used in the literature. An empirical analysis of bilateral US dollar real exchange rates employing the alternative half-life measure produces results consistent with theory and indicates that the PPP puzzle is less pronounced than initially thought. Copyright © 2012 John Wiley & Sons, Ltd.