# Siem Jan Koopman

> economist (Vrije Universiteit; Tinbergen Instituut)

**Wikidata**: [Q30070052](https://www.wikidata.org/wiki/Q30070052)  
**Source**: https://4ort.xyz/entity/siem-jan-koopman


## References

1. Integrated Authority File
2. Virtual International Authority File
3. Czech National Authority Database
4. [Source](https://researchonline.lse.ac.uk/id/eprint/131192/)
5. Research Papers in Economics
6. [ORCID Public Data File 2023](https://pub.orcid.org/v3.0/0000-0002-4440-9524/employment/4053218)
7. Mathematics Genealogy Project
8. [Source](http://catalogo.share-cat.unina.it/sharecat/searchNames?n_cluster_id=495487)
9. Library of Congress Authorities
10. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0002-4440-9524/researcher-urls/1293208)
11. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0002-4440-9524/external-identifiers/1173443)
12. Autoritats UB
13. [Source](https://github.com/zbw/repec-ras/blob/master/doc/RAS-GND-author-id-mapping.md)
14. [LIBRIS. 2005](https://libris.kb.se/fcrtxlxz5cpp136)
15. National Library of Israel Names and Subjects Authority File