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Why have emerging market economies (EMEs) been stockpiling international reserves? We find that motives have varied over time; vulnerability to current account shocks was relatively important in the 1980s but, as EMEs became more financially integrated, factors related to the magnitude of potential capital outflows gained importance. Reserve accumulation as a by-product of undervalued currencies has also become more important since the Asian crisis. Correspondingly, using quantile regressions, we find that the reason for holding reserves varies according to the country's position in the global reserves distribution. High-reserve holders, who tend to be more financially integrated, are motivated by insurance against capital account rather than current account shocks and are more sensitive to the cost of holding reserves than are low-reserve holders. Currency undervaluation is a significant determinant across the reserves distribution, albeit for different reasons. [ABSTRACT FROM AUTHOR]

Developing countries’ reserves have increased dramatically in recent years—growing by over 60% since the Asian financial crisis. This paper explores the self-insurance motivation behind this. As a first step, it revisits the literature on international reserve demand. This paper then examines the reserve-holding trends in a sample of 65 developing countries. It seeks to answer the following: Have reserves increased across the board or have these been concentrated in a few countries? If so, does it represent a break in previous policy? At what cost? This paper concludes by briefly examining some policy implications and avenues for future research. [Copyright &y& Elsevier]