Hoarding for Stormy Days: Test of International Reserves Providing Financial Buffer Services

Working Paper: NBER ID: w25909

Authors: Joshua Aizenman; Yothin Jinjarak

Abstract: This paper outlines a tractable cost-benefit analysis of the buffer stock financial services provided by international reserves and applies it to 8 of the largest Emerging Markets (BRICS, Indonesia, Mexico, Turkey) during 2000-2019. The efficient management of international reserves generates sizable benefits for countries characterized by hard-currency external debt. These benefits increase with the volatility of the real exchange rates and sovereign spreads. While the first-best policy calls for prudential regulations, counter-cyclical management of hoarding reserves in good times and selling them in bad times provides buffers stock financial services adding up to about 3% of GDP during our sample period.

Keywords: International Reserves; Financial Stability; Emerging Markets; Sovereign Spreads; Real Exchange Rates

JEL Codes: F31; F34; F41


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
management of international reserves (F33)financial buffer services (G20)
volatility of real exchange rates (F31)benefits of maintaining reserves (Q26)
short-term borrowing matched by increase in reserves (F32)net effect of opportunity cost of reserves (F31)
sovereign spread (G15)marginal benefit of selling one reserve dollar (F31)
real exchange rate (F31)marginal benefit of selling one reserve dollar (F31)
adverse economic conditions (E66)utilization of reserves (H56)
IR hoarding (H26)improvements in financial conditions (G28)
international reserves (IR) (F33)financial stability (G28)

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