Changes

Jump to navigation Jump to search
323 bytes added ,  12:04, December 26, 2021
Line 11: Line 11:  
{{Cquote|Dysgenic fertility means that there is a negative correlation between intelligence and number of children. Its presence during the last century has been demonstrated in several countries. We show here that there is dysgenic fertility in the world population quantified by a correlation of −0.73 between IQ and fertility across nations. It is estimated that the effect of this has been a decline in the world's genotypic IQ of 0.86 IQ points for the years 1950–2000. A further decline of 1.28 IQ points in the world's genotypic IQ is projected for the years 2000–2050. In the period 1950–2000 this decline has been compensated for by a rise in [[Phenotype|phenotypic]] intelligence known as the [[Flynn Effect]], but recent studies in four economically developed countries have found that this has now ceased or gone into reverse. It seems probable that this “negative Flynn Effect” will spread to economically developing countries and the whole world will move into a period of declining genotypic and phenotypic intelligence.<ref>[http://www.iapsych.com/iqmr/fe/LinkedDocuments/lynn2008.pdf The decline of the world's IQ] by Richard Flynn and John Harvey, Intelligence 36 (2008) 112–120</ref>}}
 
{{Cquote|Dysgenic fertility means that there is a negative correlation between intelligence and number of children. Its presence during the last century has been demonstrated in several countries. We show here that there is dysgenic fertility in the world population quantified by a correlation of −0.73 between IQ and fertility across nations. It is estimated that the effect of this has been a decline in the world's genotypic IQ of 0.86 IQ points for the years 1950–2000. A further decline of 1.28 IQ points in the world's genotypic IQ is projected for the years 2000–2050. In the period 1950–2000 this decline has been compensated for by a rise in [[Phenotype|phenotypic]] intelligence known as the [[Flynn Effect]], but recent studies in four economically developed countries have found that this has now ceased or gone into reverse. It seems probable that this “negative Flynn Effect” will spread to economically developing countries and the whole world will move into a period of declining genotypic and phenotypic intelligence.<ref>[http://www.iapsych.com/iqmr/fe/LinkedDocuments/lynn2008.pdf The decline of the world's IQ] by Richard Flynn and John Harvey, Intelligence 36 (2008) 112–120</ref>}}
   −
== IQ, socioeconomic status, fertility rate and France's pronatal policies ==
+
== IQ, socioeconomic status, fertility rate and government pronatal policies in the developed world ==
    
There is a positive correction between a higher IQ and an individual's higher socioeconomic status.<ref>[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4641149/ Socioeconomic status and the growth of intelligence from infancy through adolescence] by Sophie von Stumma and Robert Plomin, Intelligence. 2015 Jan-Feb; 48: 30–36.</ref> And education is positively correlated with attaining a higher economic status. And as noted above, increased education is strongly associated with delayed childbearing in both sexes.
 
There is a positive correction between a higher IQ and an individual's higher socioeconomic status.<ref>[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4641149/ Socioeconomic status and the growth of intelligence from infancy through adolescence] by Sophie von Stumma and Robert Plomin, Intelligence. 2015 Jan-Feb; 48: 30–36.</ref> And education is positively correlated with attaining a higher economic status. And as noted above, increased education is strongly associated with delayed childbearing in both sexes.
Line 23: Line 23:     
Recently, the French government announced plans to raise the retirement age from 60 to 62 (by 2018) in an attempt to increase the support ratio by reducing the number of people who are classed as elderly. In addition to the increased retirement age, people will need to work 41.5 years in 2020 to claim a full pension versus the 40.5 years they must work now.<ref>[https://geographyas.info/population/france-pro-natalism/ ''France, a Pro Natalist Country''] by Alex Jackson</ref>}}
 
Recently, the French government announced plans to raise the retirement age from 60 to 62 (by 2018) in an attempt to increase the support ratio by reducing the number of people who are classed as elderly. In addition to the increased retirement age, people will need to work 41.5 years in 2020 to claim a full pension versus the 40.5 years they must work now.<ref>[https://geographyas.info/population/france-pro-natalism/ ''France, a Pro Natalist Country''] by Alex Jackson</ref>}}
 +
 +
Prenatal policies can work in developed countries, but they come with a hefty price tag.<ref>[https://ifstudies.org/blog/pro-natal-policies-work-but-they-come-with-a-hefty-price-tag Pro-Natal Policies Work, But They Come With a Hefty Price Tag] by Lyman Stone,  Institute for Family Studies</ref>
    
== See also ==
 
== See also ==
Irenaeus, Siteadmin, Check users, oversight, Administrators
351,404

edits

Navigation menu