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Optimal reserves in financially closed economies

机译:金融封闭型经济体中的最佳储备

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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 in the literature. Second, under plausible calibrations the model is consistent with the rule of thumb that reserves should be close to three months of imports. Third, optimal linear rules can capture most of the welfare gains from optimal reserve management, but significantly differ from certainty equivalence. Fourth, policymakers should place more emphasis on how to use reserves in response to shocks than on the reserve target itself. (C) 2020 Elsevier Ltd. All rights reserved.
机译:金融封闭的经济体可以确保使用国际储备抵御经常账户冲击。我们使用预防性储蓄的开放经济模型来表征储备的最佳管理,并强调几个结果。首先,基于福利的储备金机会成本不同于文献中经常使用的度量。其次,在合理的校准下,该模型符合经验法则,即储备金应接近三个月的进口量。第三,最优线性规则可以从最优准备金管理中获取大部分福利收益,但与确定性等价度有很大不同。第四,决策者应该更加注重如何利用储备来应对冲击,而不是储备目标本身。 (C)2020 Elsevier Ltd.保留所有权利。

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