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This article examines the dynamic growth of international reserves for the entire group of Latin American countries in an international comparative perspective and with respect to variables such as imports, current account balances, capital flows and gdp. We also present a review of the theories to analyze the causes, and a balance of benefits and maintenance costs. We have used the Wijnholds methodology to determine the necessary levels of international reserves for the period 2005-2008, considering the commitments of public and private external debt in the short term, and potential leakage of deposits from the local financial system. It is estimated that, for the last year, levels of excess reserves are equivalent to between US$ 170-200 billions. Also, the annual maintenance cost is equivalent to 0.8 per cent of gdp for all the countries surveyed. Finally, it outlines a set of proposals to take advantage of these circumstances. [ABSTRACT FROM AUTHOR]

The optimal reserve level theory aims to protect the economy against external shocks to its balance of payments, providing the international liquidity needed in emergency situations. The methodological applications available have limitations that compromise the results of the analysis of the optimal level in Colombia. This article offers an alternative approach to optimal international reserves and a consistent methodological framework to overcome these limitations and add trust to the monetary authorities and international agents. [ABSTRACT FROM AUTHOR]