This paper studies the behavior of the Mexican-US bilateral real exchange r
ate from 1955 to 1996. Evidence suggests that this real exchange rate is co
integrated with the Mexican and US relative price of nontradables. This coi
ntegrating relationship provides a natural basis for measuring long run rea
l exchange rate misalignment. (C) 2001 Elsevier Science B.V. All rights res
erved.