The Real Exchange Rate in Sticky-Price Models: Does Investment Matter
47 Pages Posted: 27 Apr 2009
Date Written: April 27, 2009
Abstract
This paper re-examines the ability of sticky-price models to generate volatile and persistent real exchange rates. We use a DSGE framework with pricing to market to illustrate the link between real exchange rate dynamics and what the model assumes about physical capital. We show that adding capital accumulation to the model facilitates consumption smoothing and significantly impedes the model’s ability to generate volatile real exchange rates. Our analysis, therefore, caveats earlier work that has shown how real shocks in a sticky-price model without capital can replicate the observed real exchange rate dynamics. Finally, we find that so-called persistence anomaly remains robust to several alternative capital specifications including set-ups with variable capital utilisation and investment adjustment costs. In summary, the PPP puzzle is still very much alive and well.
Keywords: Real exchange rates, capital accumulation, Taylor rules
JEL Classification: F11, F42, F43
Suggested Citation: Suggested Citation
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