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金融摩擦下的最优发展政策

Optimal Development Policies With Financial Frictions
Econometrica · 2019 · Oleg Itskhoki、Benjamin Moll

中文摘要

我们在包含金融摩擦的标准增长模型中研究最优动态拉姆齐政策。对于金融财富较低的发展中国家,最优政策干预会增加劳动供给并降低工资,从而提高企业家利润并加快财富积累。这反过来放松了未来的借款约束,带来更高的劳动生产率和工资。使用诸如信贷补贴等额外政策工具可能也是最优的。在长期中,最优政策的符号会发生反转。利用我们框架的易处理性,我们扩展模型以研究其对最优汇率与部门产业政策的含义。

Abstract

We study optimal dynamic Ramsey policies in a standard growth model with financial frictions.For developing countries with low financial wealth, the optimal policy intervention increases labor supply and lowers wages, resulting in higher entrepreneurial profits and faster wealth accumulation.This in turn relaxes borrowing constraints in the future, leading to higher labor productivity and wages.The use of additional policy instruments, such as subsidized credit, may be optimal as well.In the long run, the optimal policy reverses sign.Taking advantage of the tractability of our framework, we extend the model to study its implications for optimal exchange rate and sectoral industrial policies.
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