The pig in the python¶
Ruggles, S. (2026). The pig in the python: US decennial labor flows and economic opportunity, 1910–2040. Proceedings of the National Academy of Sciences, 123(20).
Cited by¶
1 citation across 1 artifact.
Each citation links to the sentence it supports in the citing article.
Mechanisms¶
- Strong-Cohort Pacing Rule
- What was a "pig in the python"
This sourceUses the ‘pig in the python’ image for a large cohort moving gradually through the population and labor force as it ages.
- What was a "pig in the python"
Verification¶
Does it exist? Confirmed. This work's DOI resolves to a registered record, which fixes its identity. That is all it fixes.
Does it back the claim? Not recorded. The single citation of this work carries no recorded support check.
Support is checked per citation rather than per work — the same source can be cited soundly in one article and wrongly in another. Per-citation recording began recently, so a citation with no recorded check is a gap in the record rather than evidence it went unchecked.
See how references were verified.
Registry ID ref:fe3eba456f56 · see in the full table