World Of TaxonomyWoT

Galaxy Crosswalks Explore Codes Guide Blog Builders About Pricing Classify My BusinessClassify Sign in

Home JEL Codes JJ4

J4LeafLevel 2

Particular Labor Markets

GET/api/v1/systems/jel/nodes/J4

Cross-system equivalences0

No cross-system equivalences mapped for this node.

Report a data issue

World Of Taxonomy

A unified knowledge graph connecting 1,000+ classification systems across industry, geography, health, occupations, trade, and more.

Open source on GitHub

Explore

Home
Search codes
Browse systems
Blog
Builders

Developers

GitHub repository
REST API reference
MCP tools
Report an issue

World Of Taxonomy - Unified Global Classification Knowledge Graph1,000+ systems - 1.2M+ nodes - 321K+ edges

Data is provided for informational purposes only. We do not guarantee accuracy or completeness. Use at your own risk. For authoritative codes, consult the official source.