MultiPeriodDiD: full event-study specification with pre-period coefficients#125

Merged

igerber merged 8 commits intomainfrom

methodology-review-multiperiod

Feb 2, 2026

Commits on Feb 1, 2026

MultiPeriodDiD: full event-study specification with pre-period coefficients

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Address PR #125 review feedback: validation hardening and docs fix

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Address PR #125 review round 2: NaN propagation and docs fixes

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Address PR #125 review round 3: D_it warning and HonestDiD NaN filtering

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Address PR #125 review round 4: HonestDiD post-period NaN guard

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Address PR #125 review round 5: avg_se Inf guard and HonestDiD ordering

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Address PR #125 review round 6: stale comment and FutureWarning text

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Address PR #125 review round 7: fix sorted() ordering for HonestDiD

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