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Cre Heterogeneity

ASecurity

Use when designing or writing heterogeneity analysis for a 《中国农村经济》 manuscript. Enforces rural-relevant cut dimensions and theoretical-justification discipline.

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 cre-heterogeneity --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: cre-heterogeneity
description: Use when designing or writing heterogeneity analysis for a 《中国农村经济》 manuscript. Enforces rural-relevant cut dimensions and theoretical-justification discipline.
---

# 异质性分析(cre-heterogeneity)

## 触发时机

- 主结果已稳健,但只切了一个维度(常见的"东中西"或"粮食 / 非粮食主产区")
- 审稿人要求补做异质性
- 切了多个维度但脱离农村场景、没有理论指引

## 切分维度优先级(落到三农场景)

按《中国农村经济》读者期待度排序:

1. **农户资源禀赋 / 经营特征** —— 土地经营规模、收入结构(兼业 / 纯农)、人力资本(户主受教育程度)、是否新型经营主体(合作社 / 家庭农场)
2. **要素与市场约束** —— 信贷可得性、是否外出务工 / 劳动力流动、土地是否流转、是否参保
3. **区域与制度环境** —— 粮食主产区 / 销区、脱贫县 / 非脱贫县、城乡区位(城郊 / 远郊 / 山区)、地形(平原 / 丘陵 / 山区)
4. **政策推行强度 / 时间窗** —— 政策初期 vs. 后期、试点先后批次
5. **村庄层面特征** —— 集体经济强弱、基础设施、社会网络 / 宗族

至少切 3 个维度,每个维度至少 2 个子样本对比。**避免只切"东中西"**——这是审稿人最容易吐槽的"偷懒维度"。

## 维度选择三原则

1. **有理论指引**:切分维度必须能解释"为什么在这一维度上农户的效应不同"
2. **样本量足够**:农村微观子样本 N ≥ 100 是底线,山区 / 特殊群体尤其注意
3. **系数差异显著性检验**:必须报告 Chow 检验或交互项(组间差异显著才有意义)

## 异质性写作模板

```
本文进一步检验[维度,落到农户 / 区域 / 村庄]异质性。

理论上,[原因——为什么这类农户 / 地区效应不同]……
实证上,本文将样本按[维度]分为[组 1] 和 [组 2],分别估计主回归(结果见表 X 第 (1)(2) 列)。
结果显示,[组 1] 的处理效应为 X,而 [组 2] 为 Y,系数差异在 [显著水平] 上显著。
这一发现与本文的[机制]一致,说明该政策 / 行为对[何种农户]的作用更强。
```

## 与机制分析的关系

异质性 ≈ 机制的反向验证:
- 机制告诉我们"为什么有效应"
- 异质性告诉我们"在什么类型的农户 / 地区上效应更强 / 更弱"

理想的实证文章应该:**机制(M 强 → 效应强)** 与 **异质性(M 强的农户子样本 → 效应强)** 互相印证。例如机制是"缓解信贷约束",则异质性上"原本信贷约束更紧的农户"效应应更强。

## 必查清单

- [ ] 至少 3 个异质性维度,且贴合三农场景
- [ ] 每个维度有理论指引
- [ ] 系数差异显著性检验报告
- [ ] 各子样本量足够(山区 / 特殊群体不靠 N=30 撑结论)
- [ ] 异质性结论与机制一致(或合理解释不一致)

## 反模式

- 异质性只切"东中西"凑数
- 把控制变量挂上交互项就叫"异质性"
- 切分后某一组 N=30 还在解释
- 切了 8 个维度凑数,但每个都不显著
- 异质性维度脱离农村场景(如按企业上市与否切农户样本)
- 异质性结论与机制冲突但不解释

## 输出格式

```
【异质性维度】X 个(是否含"东中西"以外的三农维度)
【系数差异检验】是 / 否
【与机制一致性】是 / 否
【最小子样本量】X
【下一步】cre-tables-figures
```

Attribution

brycewang-stanfordbrycewang-stanford
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