> are low-income nations in the EU whose workforce This is true, but it is localized and a one-time shock. Portugal, Italy, Greece have had sub replacement fe

> are low-income nations in the EU whose workforce This is true, but it is localized and a one-time shock. Portugal, Italy, Greece have had sub replacement fertility for 40 years already. China, Japan, South Korea - urbanized, industrialized, economically growing countries. The generally accepted causes are urbanization, reduced religion, education of women, which to re-enforce each other.