@Steve_Sailer's old piece on the topic:

https://vdare.com/articles/lynn-on-the-jews-yes-it-s-intelligence-but-there-s-something-else-too

"Lynn's latest, The Chosen People: A Study of Jewish Intelligence and Achievement, tabulates the consistently impressive performance of Northern European Jews..."
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(AQ=Achievement Quota) https://twitter.com/MatsVinnaren/status/1391641446227324928

"...the American AQ is fairly low by international standards. In places with very few Jews, AQs can be stratospheric, such as Switzerland (3 Jewish laureates out of 17 total laureates for an AQ of 60), Latin America (2 out of 8 for an AQ of 220) and Italy (4 out of 17 for a 320)"

"One reason seems overwhelmingly obvious to Lynn, although apparently not to most of those who have advanced theories (at least in print) for Jewish achievement: higher average IQ."

"Lynn digs up 32 IQ studies of American Jews and seven of British Jews. He concludes that..."

"...Ashkenazi Jews (ones with Yiddish-speaking ancestors) average about ten points higher than non-Hispanic white gentiles, or 110 on a scale where white Americans and Brits average 100. That would put the median Ashkenazi Jew at about the 75th percentile among whites."

"Lynn's data suggests that Jews have their very highest Achievement Quotas in the more abstract fields such as philosophy and mathematics. Lynn notes that IQ tests suggest Jews tend to be strongest at logic involving words and numbers and weakest at visuo-spatial reasoning."

(AQ=Achievement Quota) <-- "QuotIENT"