Individual skill

cie-did-identification

Use when the identification strategy for a 《中国工业经济》 (China Industrial Economics) manuscript is multi-period / staggered DID or an event study. Mandates parallel-trends event-study plots, placebo tests, and modern heterogeneity-robust estimators (Callaway-Sant'Anna, Sun-Abraham, de Chaisemartin-D'Haultfœuille, Goodman-Bacon decomposition) whenever treatment timing varies.

China-Industrial-Economics-Skills/skills/cie-did-identification/SKILL.md

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Sep 27, 2026
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# 识别策略:多期 DID / 事件研究(cie-did-identification)

## 触发时机

- 实证主体是 DID / 多期(交错)DID / event-study
- TWFE 用在交错处理上,但没回应异质性处理偏误
- 平行趋势只口头说"满足",没画事件研究图
- 用连续型处理强度(continuous/dose DID)但识别假设没说清

## 本刊红线(缺一即高危退修)

1. **平行趋势必须画事件研究图**(动态效应 + 95% CI,处理前各期系数应不显著)
2. **安慰剂检验必做**(随机化处理时点/处理对象 500—1000 次,看真实估计是否落在分布尾部)
3. **交错处理必须用异质性稳健估计**——TWFE 在交错+异质性处理效应下有偏(负权重问题)
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