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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]

In the 20 years since 1969, international reserves have shown considerable increases, that seem to be far in excess of any long-term global need. This was a consequence of the prominent role that the dollar continued to play in the monetary system, which made it easy for the United States to finance balance of payments deficits in its own currency, increasing the amount of dollars in reserves. In addition the Eurodollar market made international reserves to some extent demand/determined: there was a very elastic supply of liquidity in this market. These developments in international reserves have inflationary consequences. To prevent such consequences in the future, central banks should set up a systematic surveillance system for international liquidity together with the IMF and BIS. An essential instrument in this context would be for the United States to finance its balance of payments deficits in foreign currencies in world capital markets. [ABSTRACT FROM AUTHOR]