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Ceq Mechanism

ASecurity

Use when a 《经济学(季刊)》 (China Economic Quarterly, CEQ) manuscript has a credible main effect but the channel/mechanism is asserted rather than evidenced — to design tests that distinguish competing channels and provide falsifiable mechanism evidence. Use after identification is settled.

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 ceq-mechanism --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: ceq-mechanism
description: Use when a 《经济学(季刊)》 (China Economic Quarterly, CEQ) manuscript has a credible main effect but the channel/mechanism is asserted rather than evidenced — to design tests that distinguish competing channels and provide falsifiable mechanism evidence. Use after identification is settled.
---

# 机制证据(ceq-mechanism)

## 触发时机

- 主效应识别干净,但机制只是"我们认为可能是因为…"
- 有多个竞争渠道,没办法区分
- 审稿人问"你怎么知道是 M 而不是 M'"

## CEQ 的机制要求:可证伪,能区分

CEQ 不接受把"中介回归显著"当机制证明。机制证据要满足:
1. **有理论命题**:机制 M 推出一个**可证伪**的实证含义。
2. **能区分竞争渠道**:设计能把 M 与 M' 分开,而非笼统"存在影响"。
3. **与主识别同源**:机制检验尽量沿用主设计的外生变异,而非另起一套内生回归。

## 机制证据的层级(弱 → 强)

| 层级 | 做法 | CEQ 评价 |
|------|------|----------|
| 弱 | 中介变量回归(Baron-Kenny 式) | 易被内生性击穿,不足以单独立机制 |
| 中 | 异质性切分印证机制(M 强的子样本效应更大) | 可信,但需理论先验 |
| 强 | 机制的**可证伪含义**在数据中验证 | CEQ 偏好 |
| 强 | 对机制变量本身用外生变异 / 子设计 | 最佳 |

## 设计套路

- **异质性即机制**:若机制是 M,则在 M 更强处效应更大——用预先设定的维度检验(避免数据挖掘,见 `ceq-inference`)。
- **排除竞争渠道**:直接检验 M' 的预测不成立(如控制 M' 后效应不变、M' 的代理变量无反应)。
- **剂量反应**:机制强度与效应大小单调相关。
- **时间结构**:机制应有的时序在事件研究图里出现(见 `ceq-figures`)。

## 自检清单

- [ ] 机制有明确理论命题与可证伪含义
- [ ] 至少排除一个主要竞争渠道
- [ ] 机制检验尽量复用主设计的外生变异
- [ ] 异质性切分维度有理论先验,非事后挑选
- [ ] 没有把"中介回归显著"单独当作机制证明

## 反模式

- 把中介效应回归(Sobel/Baron-Kenny)当机制铁证
- "机制可能有 A、B、C"罗列而不区分
- 机制回归用一堆内生协变量,自带内生性
- 机制故事与主效应时序矛盾却不解释

## 输出格式

```
【机制命题】M:... → 可证伪含义:...
【竞争渠道】M':... | 是否已排除:是/否
【证据层级】中介 / 异质性 / 可证伪验证 / 子设计外生
【与主识别同源】是 / 否
【缺口】<待补>
【下一步】ceq-figures
```

Attribution

brycewang-stanfordbrycewang-stanford
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