{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T17:32:05Z","timestamp":1793122325053,"version":"4.5.0"},"posted":{"date-parts":[[2026]]},"group-title":"SSRN","reference-count":6,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>ract: The report uses a methodological approach based on the works of A. L. Chizhevsky. The years of solar cycles were numbered in accordance with the order established in solar astrophysics and grouped by numbers. Subsequently, the average values of the geomagnetic index Ar were compared with the average values of the total fertility rate (the number of births per 1,000 people on Earth) with a 1\u2011year lag. Overall, for 12 years of the average solar cycle (74 years of observations), the relationship turned out to be strong and direct, with a correlation coefficient of 0.75. The latest up\u2011to\u2011date UN database contains accurate calculated data on the total fertility rate only up to and including 2023. The projected total fertility rate for 2024 is 16.916, for 2025 \u2014 17.620, for 2026 \u2014 17.259, and for 2027 \u2014 17.501.<\/jats:p>","DOI":"10.2139\/ssrn.7661578","type":"posted-content","created":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T15:29:24Z","timestamp":1793114964000},"source":"Crossref","is-referenced-by-count":0,"title":["Global Fertility Rate (1950-2023) and Geomagnetic Ap Index (1949-2022): R = 0.75"],"prefix":"10.2139","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0670-0721","authenticated-orcid":true,"given":"Vladimir","family":"Belkin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"ref1","volume":"367","author":"\u0410 \u041b \u0427\u0438\u0436\u0435\u0432\u0441\u043a\u0438\u0439","year":"1976","journal-title":"\u0417\u0435\u043c\u043d\u043e\u0435 \u044d\u0445\u043e \u0441\u043e\u043b\u043d\u0435\u0447\u043d\u044b\u0445 \u0431\u0443\u0440\u044c. \u0418\u0437\u0434. 2-\u0435. \u041c., \u00ab\u041c\u044b\u0441\u043b\u044c\u00bb"},{"key":"ref2","author":"\u0410 \u041b \u0427\u0438\u0436\u0435\u0432\u0441\u043a\u0438\u0439","year":"1995","journal-title":"\u041a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043f\u0443\u043b\u044c\u0441 \u0436\u0438\u0437\u043d\u0438: \u0417\u0435\u043c\u043b\u044f \u0432 \u043e\u0431\u044a\u044f\u0442\u0438\u044f\u0445 \u0421\u043e\u043b\u043d\u0446\u0430. \u041c.: \u041c\u044b\u0441\u043b\u044c"},{"key":"ref3","journal-title":"Helmholtz Centre for Geosciences"},{"key":"ref4","author":"Wdc-Silso","year":"2026"},{"key":"ref5","year":"2026","journal-title":"Sunspot Number: Yearly mean total sunspot number"},{"key":"ref6","article-title":"Population Division ; processed by Our World in Data","year":"2026","journal-title":"Data"}],"container-title":[],"original-title":[],"deposited":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T16:34:56Z","timestamp":1793118896000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ssrn.com\/abstract=7661578"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":6,"URL":"https:\/\/doi.org\/10.2139\/ssrn.7661578","relation":{},"subject":[],"published":{"date-parts":[[2026]]},"subtype":"preprint"}}