Personal thoughts on causal inference issues
"Fixed effects do not fix everything"
Link to Rubin's interview: https://muse.jhu.edu/article/867089
Link to Hainmueller, Mummolo, and Xu (2019): https://www.cambridge.org/core/journals/political-analysis/article/how-much-should-we-trust-estimates-from-multiplicative-interaction-models-simple-tools-to-improve-empirical-practice/D8CAACB473F9B1EE256F43B38E458706