Reference health

Differences in IQ Predict Italian North-South Differences In (Among Other Things) Income: A Comment

https://doi.org/10.2139/ssrn.1598215
CiteStamped reference-health badge
5/5 checkable references clean · checked 2026-08-27

Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.

8 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.

The 5 checked references that resolve
resolves10.1016/j.socec.2009.06.013
Healthy, educated and wealthy: A primer on the impact of public and private welfare expenditures on economic growth
resolves10.1257/089533002760278686
The Inheritance of Inequality
resolves10.1162/003355300554674
Causal Parameters and Policy Analysis in Economics: A Twentieth Century Retrospective*
resolves10.1016/j.intell.2009.07.004
In Italy, north–south differences in IQ predict differences in income, education, infant mortality, stature, and literacy
resolves10.1787/9789264040014-en
PISA 2006
The 8 references without a DOI — listed, not checked
no DOI — not checkedref2
no DOI — not checkedref4
no DOI — not checkedTerritorial differences in Italian Students' Mathematical Competencies: Evidence from PISA
no DOI — not checkedref6
no DOI — not checkedref7
no DOI — not checkedConti economici regionali. Rome: The National Institute of Statistics
no DOI — not checkedAnnuario statistico italiano. Rome: The National Institute of Statistics
no DOI — not checkedref12
What this badge says. CiteStamped means the CHECKABLE references of this work were clean at the dated check: each resolved to a known work in a public registry, and none carried a retraction notice at that time. It says nothing about the quality, findings, or importance of the work itself, and nothing about references deposited without a DOI.

checked 2026-08-27 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record

Embed this badge

Both snippets point at the live badge image and link back to this page. The badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.

<a href="https://citestamp.com/citestamped/10.2139/ssrn.1598215"><img src="https://citestamp.com/citestamped/10.2139/ssrn.1598215/badge.svg" alt="CiteStamped reference-health badge" width="460" height="64"></a>
[![CiteStamped reference-health badge](https://citestamp.com/citestamped/10.2139/ssrn.1598215/badge.svg)](https://citestamp.com/citestamped/10.2139/ssrn.1598215)