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Hysteresis and fiscal policy

机译:滞后和财政政策

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摘要

Empirical studies support the hysteresis hypothesis that recessions have a permanent effect on the level of output. We analyze the implications of hysteresis for fiscal policy in a DSGE model. We assume a simple learning-by-doing mechanism where demand-driven changes in employment can affect the level of productivity permanently, leading to hysteresis in output. We show that the fiscal output multiplier is much larger in the presence of hysteresis and that the welfare multiplier of fiscal policy–the consumption equivalent change in welfare for one dollar change in public spending–is positive (negative) in the presence (absence) of hysteresis. The main benefit of accommodative fiscal policy in the presence of hysteresis is to diminish the damage of a recession to the long-term level of productivity and, thus, output.
机译:实证研究支持滞后假说,即衰退对产出水平具有永久性影响。我们在DSGE模型中分析了滞后对财政政策的影响。我们假设一个简单的边做边学的机制,其中需求驱动的就业变化会永久性地影响生产力水平,从而导致产出滞后。我们证明,在存在滞后的情况下,财政产出乘数要大得多,而在存在(缺乏)财政政策的情况下,财政政策的福利乘数(一美元公共支出的福利的消费当量变化)为正(负)。磁滞现象。在出现滞后的情况下,宽松的财政政策的主要好处是可以减少经济衰退对长期生产率和产出的损害。

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