Estimating Long Run Welfare Outcome in Rotating Panel with Grouped Fixed Effects: Application to Poverty Dynamics in Peru
用分组固定效应估计轮换面板中的长期福利结果:秘鲁贫困动态应用AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确使用家庭轮换面板、家庭内变化和分组固定效应估计贫困动态,直接支持微观面板分类,未涉及分位数处理效应。
用分组固定效应估计轮换面板中的长期福利结果:秘鲁贫困动态应用AI 解读 ↓
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Household welfare dynamics are often difficult to investigate due to lack of long-term panel data. Existing methods, such as pseudo-panel and synthetic panel, offer widely used solutions based on repeated cross-section designs, but they do not exploit within-household variation in rotating panel designs, which provide very useful information for estimating long-run dynamics. This paper applies grouped fixed effects (GFE) to estimate poverty mobility and persistence in a rotating panel setting, using National Household Survey on Living Conditions and Poverty (ENAHO) in Peru. Using observed transitions, we show that GFE-implied poverty transitions closely track the data. In a one-step-ahead validation that holds out each household's final observed year, predicted transition shares remain close to realized transition shares, indicating that the method captures short-run entry and exit dynamics out of sample. When benchmarked against synthetic panel point estimates, the GFE approach delivers transition measures that are closer to observed transitions on average, while also providing an interpretable grouping structure that supports richer descriptions of poverty persistence and mobility.