# Selection into Identification in Fixed Effects Models, with Application to Head Start

> Research article (The Journal of Human Resources, 2021) · cited 59× · AI/ML

**Wikidata**: [openalex:W2971103111](https://www.wikidata.org/wiki/openalex:W2971103111)  
**Source**: https://4ort.xyz/entity/selection-into-identification-in-fixed-effects-models-with-application-to-head-start