AI 中文总结
本注记指出贝拉贾2023年新凯恩斯主义例子的识别问题,推导了所需秩条件,修正了反事实展示的印刷错误,完善了相关定理结论。
AI 中文摘要
贝拉贾(2023)的新凯恩斯主义例子在其公开校准值处未被识别:存在多个结构满足其识别步骤的所有条件。该论文的六个识别限制中有两个与符合公开简化式的均衡方程重合,留下十一个条件来确定一个方程的十二个系数。本注记推导了识别步骤所需的秩条件,该条件仅可从简化式和限制条件计算得出。本注记还记录并修正了该论文反事实展示中的一处印刷错误,对该论文定理1的一项条款进行修正即可恢复其结论。
英文摘要
The New Keynesian example of Beraja (2023) is not identified at its printed calibration: more than one structure satisfies every condition of its identification step. Two of the paper's six identifying restrictions coincide on equilibrium equations consistent with the printed reduced form, leaving eleven conditions to determine an equation's twelve coefficients. The note derives the rank condition the identification step requires, computable from the reduced form and the restrictions alone. The note also documents and corrects a misprint in the paper's counterfactual display. A one-clause amendment to the paper's Theorem 1 restores its conclusion.
Comments15 pages