Alesina, AlbertoBarro, RobertTenreyro, Silvana2010-11-092002Alesina, Alberto, Robert J. Barro, and Silvana Tenreyro. 2002. Optimal currency areas. NBER Macroeconomics Annual 17:301-345.0889-3365http://nrs.harvard.edu/urn-3:HUL.InstRepos:4553033en-USJournal Article2010-11-09