# Using invalid instruments on purpose: Focused moment selection and averaging for GMM

> Research article (Journal of Econometrics, 2016) · cited 56× · AI/ML

**Wikidata**: [openalex:W3124377371](https://www.wikidata.org/wiki/openalex:W3124377371)  
**Source**: https://4ort.xyz/entity/using-invalid-instruments-on-purpose-focused-moment-selection-and-averaging-for-gmm