Accounting for Persistence and Volatility of Good-Level Real Exchange Rates: The Role of Sticky Information
Working Paper No. 08-W10
Mario J. Crucini, Mototsugu Shintani, and Takayuki Tsuruga
ABSTRACT [article]
Volatile and persistent real
exchange rates are observed not only in aggregate series but also
in the individual good level data. Kehoe and Midrigan (2007)
recently showed that, under a standard assumption on nominal price
stickiness, empirical frequencies of micro-price adjustment cannot
replicate the time-series properties of the law-of-one-price
deviations. We extend their sticky price model by combining good
specific price adjustment with information stickiness in the sense
of Mankiw and Reis (2002). Under a reasonable assumption on the
money growth process, we show that the model fully explains both
persistence and volatility of the good-level real exchange rates.
Furthermore, our framework allows for multiple cities within a
country. Using a panel of U.S.-Canadian city pairs, we estimate a
dynamic price adjustment process for each 165 individual goods.
The empirical result suggests that the dispersion of average time
of information update across goods is comparable to that of
average time of price adjustment.
Keywords and Phrases: Good-level real exchange rates, law of one price, sticky information, dynamic panel
JEL Classification Numbers: E31, F31, D40