This article argues that the Mexican exchange rate policy during the interwar years should be characterized asan archetypal case of “fear of floating”. Conventional accounts claim that Mexico escaped the Great Depressionbecause its policymakers deliberately repealed the gold standard ideology. Drawing on new archival data, Iargue that national policymakers remained conservative with respect to any regime change, and their preferencewas always for a fix or pegged exchange rate. Overall, this article claims that the monetary regime choicein Mexico was not driven by some new heterodox insights, and once the financial crisis of 1931 had forced adepreciation of the peso, the national monetary authority promptly rushed to join the dollar bloc.
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