PolicyEngine / PolicyEngine/microcosm
Belgium cross-engine validation note: identical population, independent engines, €643 agreement on €20.9B
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- Dominant language
- Python
- Stars
- 0
- Forks
- 4
- Avg merge
- 1d 3h
- Merged PRs (30d)
- 94
Description
Proposal
A short cross-engine validation note (IJM research note or a section of the populace system paper): Belgium as the exhibit that one population + two independent rules engines agree — the Axiom-engine Belgium model and EUROMOD reproduce SSC aggregates to €643 on €20.9B on an identical population, with 21/21 calibration targets within 1.8%.
Public framing is strictly validation ("independent implementations agree"), collegial toward EUROMOD. Assemble from the populace-be work (EPIC #259); rerun recipes exist. Cheap, high-credibility launch evidence.
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the populace-be work in EPIC #259 and its existing rerun recipes. Assemble the Belgium cross-engine validation note around the stated €643 agreement, €20.9B aggregate, and 21/21 calibration targets within 1.8%; done means a concise, collegial validation section or IJM research note supported by those reproduced results.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data, documentation
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 58/100