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Cie Mechanism

ASecurity

Use when a 《中国工业经济》 (China Industrial Economics) manuscript needs mechanism evidence. Prefers split-channel and moderation (heterogeneity-by-mechanism) regressions and treats the three-step mediation method as suspect — per Jiang (2022, CIE 2022:5), the journal's own methodological-norm guide. Use after the main effect is identified.

1,052 stars
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Added 6/4/2026
ai-agents

Security Analysis

A100/100

Scanned 6/4/2026

Install to Claude Code

$npx -y skills add brycewang-stanford/Awesome-Journal-Skills --skill cie-mechanism --agent claude-code

Installs into .claude/skills of the current project.

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Files
SKILL.md
---
name: cie-mechanism
description: Use when a 《中国工业经济》 (China Industrial Economics) manuscript needs mechanism evidence. Prefers split-channel and moderation (heterogeneity-by-mechanism) regressions and treats the three-step mediation method as suspect — per Jiang (2022, CIE 2022:5), the journal's own methodological-norm guide. Use after the main effect is identified.
---

# 机制检验(cie-mechanism)

## 触发时机

- 主效应有了,但只能说"我们认为可能是因为…"
- 机制只用了三步法(逐步回归)中介
- 调节效应只报交互项显著,没说它如何强化因果论证

## 本刊立场:警惕三步中介(重要)

本刊**亲自发表过该领域的方法规范名篇**——**江艇(2022)《因果推断经验研究中的中介效应与调节效应》,《中国工业经济》2022 年第 5 期**。其核心结论:

- **三步法(逐步法)中介被严重滥用**:把 Y 对 M 回归并不能识别"X→M→Y"的因果链,因为 M 通常内生、且 M→Y 这一步缺乏识别
- 推荐做法:**集中识别 X→M 这一段**(M 作为新的结果变量,沿用主识别策略),机制链条的 M→Y 一段交给理论与既有文献支撑
- **调节效应**应明确其"如何加强因果关系论证",而非孤立报交互项

> 因此:在本刊,机制首选**分渠道回归**与**调节效应**,对三步中介持保留态度。盲目套三步中介是高频退修点。

## 机制三条可接受路径

1. **分渠道回归(首选)**:把中介变量 M 当作新结果,用与主效应**同一识别策略**估计 X→M;多个候选渠道分别估计、横向比较强弱
2. **调节效应**:用 X × W 交互检验机制——若机制为真,在机制更强的子样本/情境中效应更大;须说清这如何加强(而非替代)因果论证
3. **异质性即机制**:用 `cie-heterogeneity` 的维度切分反推机制("在 M 更强的组效应更大 ⇒ 经由 M")

## 与理论的呼应

- 机制变量来自前文理论框架,不是事后凑的
- "实证检验不仅检验是什么,更要回答为什么"(投稿指南原文)——机制就是"为什么"
- 多渠道时给出相对重要性判断,不要并列罗列

## 自检清单

- [ ] 机制走**分渠道 / 调节**,而非单纯三步中介
- [ ] 若仍用中介,已采用江艇(2022)建议(识别 X→M,M→Y 靠理论)
- [ ] 渠道变量来自理论框架,非事后拼凑
- [ ] 调节效应说清"如何加强因果论证"
- [ ] 多渠道有强弱比较与经济解释

## 反模式

- 三步法 + Sobel/Bootstrap 当唯一机制,且 M 明显内生
- 机制变量与主效应不用同一识别策略(X→M 仍是 OLS 相关)
- 交互项一堆,不解释机制含义
- 把"控制变量显著"当机制

## 输出格式

```
【机制路径】分渠道 √ / 调节 √ / 三步中介(需改)
【渠道与识别】X→M 用 <同一策略> / 仅相关(需改)
【调节】交互项 + 因果论证加强说明 √ / 仅报显著
【理论呼应】渠道来自理论 √ / 事后拼凑
【参照】江艇(2022, 中国工业经济 2022:5)
【下一步】cie-heterogeneity
```

Attribution

brycewang-stanfordbrycewang-stanford
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