In Korea, income is positively correlated with fertility. https://www.demographic-research.org/volumes/vol44/39/44-39.pdf https://www.demographic-research.org/

In Korea, income is positively correlated with fertility. https://www.demographic-research.org/volumes/vol44/39/44-39.pdf https://www.demographic-research.org/volumes/vol44/39/44-39.... In the West, it was historically (1900-2000) the opposite. In fact, the fertility of the rich is similar between regions. The difference is that in Korea, the less advantaged have many fewer children. Understanding this goes a long way toward understanding "Why don't they fix this?" For some, there is no problem.