[宏观经济学研讨会]Microeconomic Heterogeneity and Macroeconomic Shocks

【主讲】刘凯 中国人民大学经济学院副教授
【主题】Microeconomic Heterogeneity and Macroeconomic Shocks(Greg Kaplan & Giovanni L. Violante, NBER Working Papers, 2018)
【摘要】We analyze the role of household heterogeneity for the response of the macroeconomy to aggregate shocks. After summarizing how macroeconomists have incorporated household heterogeneity and market incompleteness in the study of economic fluctuations so far, we outline an emerging framework that combines Heterogeneous Agents (HA) with nominal rigidities, as in New Keynesian (NK) models, that is much better aligned with the micro evidence on consumption behavior than its Representative Agent (RA) counterpart. By simulating consistently calibrated versions of HANK and RANK models, we convey two broad messages. First, the degree of equivalence between models crucially depends on the shock being analyzed. Second, certain interesting macroeconomic questions concerning economic fluctuations can only be addressed within HA models, and thus the addition of heterogeneity broadens the range of problems that can be studied by economists. We conclude by recognizing that the development of HANK models is still in its infancy and by indicating promising directions for future work.
【主持】陈彦斌 教授

    人大宏观经济学研讨会(Macro Workshop)旨在追踪宏观经济学国际最新进展,倡导构建符合国情的动态优化模型,并使用计算机模拟研究经济增长、收入分配和宏观政策等中国宏观经济重大问题。
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