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• STATA 공부 패널데이터 구조 파악 . tsset Code year panel variable: Code (unbalanced) time variable: year, 2012 to 2019, but ASSET, fe (est2 stored) . eststo: qui xtreg TQ G LEV ASSET, fe (est3 stored) . eststo: qui xtreg TQ ESG blog.naver.com · 2021.04.07