Mortality containment vs. Economics Opening: Optimal policies in a SEIARD model.

Mortality containment vs. Economics Opening: Optimal policies in a SEIARD model.
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死亡率控制与经济开放:SEIARD模型中的最优政策。

DOI:
10.1016/j.jmateco.2021.102490
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发表时间:
2021-03
影响因子:
1.3
通讯作者:
Wasmer E
Wasmer E
中科院分区:
经济学4区
文献类型:
--
作者:
Aspri A;Beretta E;Gandolfi A;Wasmer E

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我们将经典方法(SIR)扩展到具有政策控制的SEAIRD模型。社会规划者的目标反映了降低死亡率和GDP之间的权衡,其特点是对统计生命价值(PVSL)的看法。我们对它可用的控制引入了现实和极端的限制。在这个设置中,我们将探索各种控制政策的结果。值得注意的是,我们描述了感染和经济在不同情况下的联合动力学,其中有独特的或多次的限制事件。与其他方法相比,我们的贡献是:(I)限制社会规划者可获得的职能类别,特别是强制要求这些职能在某些固定时期内保持不变;(Ii)施加执行摩擦,例如在实施过程中出现滞后;(Iii)证明在这套可能的控制范围内存在最优策略;(Iv)随着生命统计价值的提高,最优政策突然发生变化,从自由放任到相当大的封锁水平,这表明了政策建议相互冲突的可能原因。
We extend the classic approach (SIR) to a SEAIRD model with policy controls. A social planner’s objective reflects the trade-off between mortality reduction and GDP, featuring its perception of the value of statistical life (PVSL). We introduce realistic and drastic limitations to the control available to it. Within this setup, we explore the results of various control policies. We notably describe the joint dynamics of infection and economy in different contexts with unique or multiple confinement episodes. Compared to other approaches, our contributions are: (i) to restrict the class of functions accessible to the social planner, and in particular to impose that they remain constant over some fixed periods; (ii) to impose implementation frictions, e.g. a lag in their implementation; (iii) to prove the existence of optimal strategies within this set of possible controls; iv) to exhibit a sudden change in optimal policy as the statistical value of life is raised, from laissez-faire to a sizeable lockdown level, indicating a possible reason for conflicting policy proposals.
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发表时间: 2021-03
影响因子: 9.8
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