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Mw Mechanism Heterogeneity

ASecurity

Use when designing or writing mechanism tests and heterogeneity analyses for a Management-World empirical manuscript. Required for nearly all MW empirical submissions.

1,052 stars
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Added 6/5/2026
ai-agents

Security Analysis

A100/100

Scanned 6/5/2026

Install to Claude Code

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

Installs into .claude/skills of the current project.

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SKILL.md
---
name: mw-mechanism-heterogeneity
description: Use when designing or writing mechanism tests and heterogeneity analyses for a Management-World empirical manuscript. Required for nearly all MW empirical submissions.
---

# 机制与异质性(mw-mechanism-heterogeneity)

## 触发时机

- 主回归结果已稳健,但缺机制分析
- 异质性分析只切了"国企 / 非国企"或"东中西"——颗粒度不够
- 审稿人问"为什么会有这个效应?"

## 机制分析(Mechanism)

### 三种主流路径

1. **中介效应 / 调节效应回归**
   - 经典 Baron & Kenny 已被弱化 → 推荐 Bootstrap + 直接估计 + 因果中介(imai-keele-yamamoto)
   - 不要只跑 sobel 检验
2. **替换被解释变量为机制变量**
   - 主回归:政策 → Y
   - 机制:政策 → M(M 为中间机制)
   - 然后讨论 M → Y 的合理性
3. **跨子样本对比**
   - 在"机制成立"和"机制不成立"的子样本中分别估计
   - 如果系数有显著差异,构成机制证据

### 机制写作三段式

```
本文进一步从[机制名]角度提供证据。
首先,[机制变量 M] 与[处理变量 D]的关系:……
其次,在[M 强 / 弱] 子样本中,主效应分别为:……
这一结果支持……机制。
```

## 异质性分析(Heterogeneity)

### 切分维度优先级

按《管理世界》读者期待度排序:

1. **政策强度 / 制度环境** —— 不同地区市场化指数、不同行业管制强度
2. **企业产权 / 公司治理** —— 国企 / 民企 / 外资、董事会独立性
3. **企业规模 / 行业属性**
4. **时间窗** —— 政策初期 vs. 后期
5. **个人特征**(如果是个体层面数据)

至少切 3 个维度,每个维度至少 2 个子样本对比。

### 维度选择原则

- 切分维度必须**有理论指引**——不能"为了切而切"
- 切分要做**系数差异显著性检验**(Chow 检验或交互项)
- 切分后样本不能过少(每个子样本 N ≥ 100 是底线)

## 必查清单

- [ ] 至少 1 个机制 + 至少 3 个异质性维度
- [ ] 机制变量来源于理论 / 已有文献(不是凭空想)
- [ ] 异质性维度有理论指引(不只是描述统计差异)
- [ ] 系数差异显著性检验报告
- [ ] 子样本量足够

## 反模式

- 把控制变量挂上交互项就叫"异质性"
- 中介效应只跑 Sobel 检验
- 机制变量与处理变量构造时使用了未来信息
- 切分后某一组 N=30 还在解释

## 输出格式

```
【机制数】X 个
【异质性维度】X 个
【系数差异检验】是 / 否
【机制理论引用】[文献]
【下一步】mw-tables-figures
```

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