Causal Mediation Analysis for Panel Data with Double/Debiased Machine Learning
双向固定效应面板数据的因果中介分析:双重/去偏机器学习方法
We develop a double/debiased machine learning framework for causal mediation analysis in panel data with two-way fixed effects. Binary, multivalued, or continuous treatments and continuous mediators affect outcomes via histories. We formulate partially linear models for potential outcomes and mediators, define history-specific direct, indirect, and total effects, and identify them under a sequential conditional independence assumption given unit effects, allowing arbitrary…