Individual skill

event-study

Use this skill whenever the user wants to conduct an event study, create event study plots, test for parallel trends, implement difference-in-differences designs, or work with any panel data estimation that involves pre/post treatment comparisons. Trigger on phrases like "event study", "parallel trends", "pre-trends", "dynamic treatment effects", "leads and lags", "TWFE", "two-way fixed effects", "staggered adoption", "staggered treatment", "difference-in-differences", "DiD", "Sun and Abraham", "Callaway and Sant'Anna", "de Chaisemartin", "Borusyak", "did_multiplegt", "fixest", "did2s", "bacon decomposition", or any reference to plotting coefficients around a treatment event. Also trigger when the user uploads panel data and wants to estimate treatment effects with variation in treatment timing. All code is in R.

skills/27-dariia-m-my_claude_skills/event-studies/SKILL.md

Source commit 8684584e7d1127940f018157d2c579974fae8f79

What was checked

Matches the observed repository HEAD

Yes

Scanner rules are current

Yes

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No

Skill scan complete

Yes

Observed behavior

Instructions only

Last checked

Nov 10, 2026

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