# Pre-Event Trends in the Panel Event-Study Design

> Research article (American Economic Review, 2019) · cited 387× · AI/ML

**Wikidata**: [openalex:W2799629285](https://www.wikidata.org/wiki/openalex:W2799629285)  
**Source**: https://4ort.xyz/entity/pre-event-trends-in-the-panel-event-study-design