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首页> 外文期刊>The economic journal >DESIGNING A SIMPLE LOSS FUNCTION FOR CENTRAL BANKS: DOES A DUAL MANDATE MAKE SENSE?
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DESIGNING A SIMPLE LOSS FUNCTION FOR CENTRAL BANKS: DOES A DUAL MANDATE MAKE SENSE?

机译:为中央银行设计一个简单的损失功能:双重授权是否有意义?

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摘要

Yes, a dual mandate makes a lot of sense. This article studies how to design simple loss functions for central banks, as parsimonious approximations to social welfare. We show, both analytically and quantitatively, that simple loss functions should feature a high weight on measures of economic activity, sometimes even larger than the weight on inflation. Two main factors drive our result. First, stabilising economic activity also stabilises other welfare-relevant variables. Second, the estimated model features mitigated inflation distortions due to a low elasticity of substitution between monopolistic goods and a low interest rate sensitivity of demand. The result holds up in the presence of measurement errors, with large shocks that generate a trade-off between stabilising inflation and resource utilisation, and also when imposing a moderate degree of interest rate volatility.
机译:是的,双重授权造成了很多意义。本文研究了如何为中央银行设计简单的损失函数,作为社会福利的解析近似。我们展示了分析和定量,简单的损失功能应在经济活动衡量方面具有很高的重量,有时甚至大于通货膨胀的重量。两个主要因素驱动我们的结果。首先,稳定经济活动也稳定了其他福利相关的变量。其次,由于垄断物品与需求低的利率敏感性,估计模型具有由于替代的低弹性而具有缓解扭曲。结果在存在测量误差的情况下保持较大的冲击,在稳定通胀和资源利用之间产生权衡,并且在施加适度的利率波动时。

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