# Tech firm births and agglomeration economies: (un)related variety, specialization, and spatial externalities

> Research article (Cities, 2023) · cited 19× · AI/ML

**Wikidata**: [openalex:W4367839000](https://www.wikidata.org/wiki/openalex:W4367839000)  
**Source**: https://4ort.xyz/entity/tech-firm-births-and-agglomeration-economies-un-related-variety-specialization-and-spatial-externalities