NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

The Price Impact of Joining a Currency Union: Evidence from Latvia

Alberto Cavallo, Brent Neiman, Roberto Rigobon

NBER Working Paper No. 20225
Issued in June 2014
NBER Program(s):   IFM   ITI   ME

Does membership in a currency union matter for a country's international relative prices? The answer to this question is critical for thinking about the implications of joining (or exiting) a common currency area. This paper is the first to use high-frequency good-level data to provide evidence that the answer is yes, at least for an important subset of consumption goods. We consider the case of Latvia, which recently dropped its pegged exchange rate and joined the euro zone. We analyze the prices of thousands of differentiated goods sold by Zara, the world's largest clothing retailer. Price dispersion between Latvia and euro zone countries collapsed swiftly following entry to the euro. The percentage of goods with nearly identical prices in Latvia and Germany increased from 6 percent to 89 percent. The median size of price differentials declined from 7 percent to zero. If a large number of firms also behave this way, these results suggest that membership in a currency union has significant implications for a country's real exchange rate.

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This paper was revised on August 18, 2014

Machine-readable bibliographic record - MARC, RIS, BibTeX

Document Object Identifier (DOI): 10.3386/w20225

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