NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Optimal Reserves in Financially Closed Economies

Olivier Jeanne, Damiano Sandri

NBER Working Paper No. 22139
Issued in March 2016
NBER Program(s):International Finance and Macroeconomics

Financially closed economies insure themselves against current-account shocks using international reserves. We characterize the optimal management of reserves using an open-economy model of precautionary savings and emphasize several results. First, the welfare-based opportunity cost of reserves differs from the measures often used by practitioners. Second, under plausible calibrations the model is consistent with the rule of thumb that reserves should be close to three months of imports. Third, simple linear rules can capture most of the welfare gains from optimal reserve management. Fourth, policymakers should place more emphasis on how to use reserves in response to shocks than on the reserve target itself.

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Document Object Identifier (DOI): 10.3386/w22139

Published: Olivier Jeanne & Damiano Sandri, 2016. "Optimal Reserves in Financially Closed Economies," IMF Working Papers, vol 16(92).

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