lit-review-assistant

文献综述助手

用途

此技能通过构建检索框架、总结论文和综合研究结果，帮助经济学家开展文献综述。它提供了整理文献和识别研究空白的模板。

适用场景

• 为新项目启动文献综述
• 为论文引言查找相关研究
• 综合某一主题的现有证据
• 识别文献中的空白

说明

第 1 步：界定研究领域

询问用户：

1. 您的具体研究问题是什么？
2. 范围是什么？（狭窄领域的综述，还是跨学科综述）
3. 您可以访问哪些数据库？（JSTOR、EconLit、Google Scholar、NBER）
4. 相关的时间范围是什么？
5. 是否有可作为起点的经典论文？

第 2 步：构建检索框架

协助确定检索词：

1. 主要检索词：核心概念（例如，“最低工资”“就业”）
2. 方法筛选词：（RCT、IV、双重差分）
3. 结果检索词：衡量的影响
4. 地理／时间范围：如适用

第 3 步：整理并综合

为每篇论文创建结构化摘要：

• 引用信息
• 研究问题
• 数据和方法
• 主要发现
• 局限性
• 与用户项目的关联

第 4 步：识别规律和空白

• 各篇论文在哪些方面意见一致？
• 哪些方面存在分歧？
• 还有哪些问题尚未解答？
• 哪些方法尚未应用？

示例输出：文献综述模板

# Literature Review: [TOPIC]

## Search Strategy

**Databases:** EconLit, NBER, Google Scholar, SSRN
**Date range:** 2010-2024
**Search terms:** 
- ("minimum wage" OR "wage floor") AND (employment OR jobs)
- ("minimum wage") AND ("difference-in-differences" OR "DiD")

**Inclusion criteria:**
- Peer-reviewed or NBER working papers
- Focused on [specific outcome]
- Uses causal identification strategy

---

## Seminal Papers

### Card and Krueger (1994)
**Citation:** Card, D., & Krueger, A. B. (1994). Minimum Wages and Employment: A Case Study of the Fast-Food Industry in New Jersey and Pennsylvania. *American Economic Review*, 84(4), 772-793.

**Research Question:** What is the effect of minimum wage increases on employment?

**Data & Method:** 
- DiD comparing NJ (treatment) to PA (control)
- Survey of fast-food restaurants before/after NJ minimum wage increase

**Key Findings:**
- No negative employment effect found
- Employment slightly increased in NJ relative to PA

**Contribution:** Challenged conventional view; pioneered quasi-experimental methods in labor economics

**Limitations:**
- Single state, short time horizon
- Potential survey response bias

---

### Cengiz et al. (2019)
**Citation:** Cengiz, D., Dube, A., Lindner, A., & Zipperer, B. (2019). The Effect of Minimum Wages on Low-Wage Jobs. *Quarterly Journal of Economics*, 134(3), 1405-1454.

**Research Question:** Do minimum wage increases destroy jobs or compress the wage distribution?

**Data & Method:**
- Bunching estimator using 138 minimum wage events
- Examine employment distribution around minimum wage

**Key Findings:**
- Jobs below the new minimum wage disappear
- But replaced by jobs just above the minimum
- No significant overall employment loss

**Contribution:** Novel bunching methodology; large-scale evidence

---

## Synthesis: What We Know

| Finding | Evidence Quality | Consensus Level |
|---------|-----------------|-----------------|
| Small minimum wage increases have minimal employment effects | Strong (multiple RCTs/quasi-experiments) | High |
| Effects may be heterogeneous by region | Medium | Growing |
| Large increases (e.g., $15) less studied | Limited | Low |

## Research Gaps

1. **Mechanism:** How do firms absorb higher labor costs? (Prices, profits, productivity?)
2. **Long-run effects:** Most studies focus on 1-2 years
3. **Geographic heterogeneity:** Do effects differ in low vs. high cost-of-living areas?
4. **Spillovers:** Effects on workers earning above minimum wage

## Connection to Your Project

Your study of [SPECIFIC QUESTION] can contribute by:
- [How your work fills a gap]
- [What new data/method you bring]

论文摘要模板

## [Author(s)] ([Year])

**Title:** [Full title]

**Published in:** [Journal/Working Paper Series]

**Research Question:** [One sentence]

**Data:**
- Source: [Dataset name]
- Period: [Years]
- Sample: [N observations, unit of analysis]

**Identification Strategy:** [Method in one sentence]

**Main Findings:**
1. [Key result 1 with magnitude]
2. [Key result 2]
3. [Robustness/heterogeneity]

**Limitations:**
- [Main concern 1]
- [Main concern 2]

**Relevance to your project:** [One sentence on how it connects]

**Key quote:** "[Most important direct quote]" (p. XX)

检索策略提示

Google Scholar 运算符

• "exact phrase" - 精确匹配
• author:surname - 特定作者的论文
• source:journal - 特定期刊中的论文
• -exclude - 排除检索词
• [year]..[year] - 日期范围

查找经典论文

1. 查看近期综述论文中的引用
2. 查找引用次数超过 1,000 次的论文
3. 查看 EconLit 中的 JEL 代码
4. 浏览 Google Scholar 中的“相关文章”

构建引文网络

1. 从 2～3 篇经典论文开始
2. 查看近期论文引用了哪些经典论文（前向引用）
3. 查看这些论文的参考文献（后向引用）
4. 识别相关研究的聚类

最佳实践

1. 使用文献管理工具（Zotero、Mendeley、BibDesk）
2. 阅读时创建带注释的书目
3. 记录检索查询，确保可复现
4. 投稿前定期更新
5. 平衡广度和深度——覆盖整个领域，同时聚焦最相关的研究

常见误区

• ❌ 只引用支持自己论点的论文
• ❌ 不讨论相互矛盾的研究结果
• ❌ 总结时混淆相关性与因果关系
• ❌ 引用自己实际上没有读过的论文
• ❌ 遗漏重要的近期论文

参考资料

• EconLit - 权威经济学数据库
• NBER Working Papers - 最新研究
• IDEAS/RePEc - 免费经济学论文
• Connected Papers - 可视化引文网络

更新日志

v1.0.0

• 首次发布，包含模板和检索策略