# Identifiability issues of age–period and age–period–cohort models of the Lee–Carter type

> Research article (Insurance Mathematics and Economics, 2017) · cited 10× · AI/ML

**Wikidata**: [openalex:W2561082488](https://www.wikidata.org/wiki/openalex:W2561082488)  
**Source**: https://4ort.xyz/entity/identifiability-issues-of-ageperiod-and-ageperiodcohort-models-of-the-leecarter-type
