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Instrumental Variables
Everything on Aqrab tagged Instrumental Variables — grouped into one landing page so readers can go deeper by problem family instead of bouncing around the archive blind.
Causal InferenceInstrumental VariablesUnmeasured Confounding
Instrumental Variables: When Observational Data Meets Unmeasured Confounding
When PSM and regression fail because of unmeasured confounding, IV methods offer a way forward. A practical guide covering instruments, LATE, Mendelian randomization, and the exclusion restriction.
2026-03-26·14 min read
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