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Yaakov's avatar

Living in the basement seems to be just cultural / economical. Scandinavia has low fertility rates but young adults with no intent of having children move out. Romania has a high fertility and people live with their parents.

Israel has a very how fertility (3.0) with very heavy zoning regulations and housing prices. People live with their parents with their spouses and children or live in tiny apartments (some are converted storage rooms).

Incentives matter and zoning is bad, but I am not sure that is what we see in these maps.

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Niko Davor's avatar

Israel is the big example of a modern society with a high birth rate. One theory is they have a culture that is proud of their biological lineage, or their race, and promotes expanding it with children, and that is a goal worthy of great sacrifice in their culture. In the US + Europe, the more dominant cultural force is anti-racism, and tells specifically white people to not be proud of their biological lineage, and their children aren't more special than other people's children, and having children is not a goal worthy of sacrifice, so it makes sense to see low birth rates. A good social scientist would do studies to see if this is true. But I'm not a social scientist and am not in a position to pursue such a research project.

The Chinese think of themselves as a special race, even if they aren't religious, and they have low birth rates. One possible explanation is that in recent decades, hundreds of millions of Chinese were living in grinding poverty, and they couldn't raise kids the way they wanted, and the national focus was on raising standards of living rather than a baby boom effort, but now that living standards are much higher, that focus may change.

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