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Oligopolistic competition and optimal monetary policy

机译:寡头竞争与最优货币政策

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This paper studies optimal monetary policy in a DSGE model with supply side strategic complementarity, as arising from oligopolistic competition, and nominal rigidities. Firms' oligopolistic rents induce inefficient fluctuations through both, intra-temporal and intertemporal time-varying wedges. Optimality requires the use of state contingent inflation taxes to smooth and reduce firms' rents. Hence, under optimal (Ramsey) policy PPI deviates significantly from zero. A comparison of welfare costs for a set of operational rules relatively to the Ramsey plan shows that targeting the output gap, the mark-up and the asset price improves upon a rule with aggressive response to inflation.
机译:本文研究了DSGE模型中的最优货币政策,该模型具有供应方的战略互补性,这是由寡头竞争和名义刚性引起的。企业的寡头租金通过时间内和时间间随时间变化的楔形引起无效的波动。最优性要求使用国家或有的通货膨胀税来平滑和减少企业的租金。因此,在最优(拉姆西)政策下,PPI明显偏离零。相对于Ramsey计划,一组操作规则的福利成本比较表明,针对产出缺口,加价和资产价格,在对通货膨胀做出积极反应的规则下会有所改善。

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