What are the economic ramifications of fertility rate being below the replacement level?
There will be a lot more older folks, who expected to retire and collect social security, still in the workforce as a result of diminishing payments by youngsters into that program. Demand for medical care will continue grow as the majority of the population gets older. I believe Japan is experiencing this right now at a large scale.
https://www.washingtonpost.com/news/world/wp/2018/01/24/feat...