Under population is not very good and that is what will make a country open their borders for foreigners out of need for labour force. I think there is a solution to this through government policy by giving rewards to couples who increase the numbers of children they give birth to depending on the number stipulated by government. Another point is to discourage abortion because people do that as final resort when they have no other option.
I believe underpopulation is not as big an issue as they make it seem. Don't get me wrong, I know it's an issue but how many countries can show proof that the economy is slow because of underpopulation? Worst case scenario they open their borders for skilled immigrants.
Germany for example. They faced declining birth rate and aging population that's why their government implemented policies to encourage family growth and attract immigrants to address their problems. Non-Europians get to work and live in Germany, that makes them easier to get employed. I doubt it is a not a big issue.
Germany BLUE CARDHow do you think these developed nations will fill vacancies in their nations and get cheap labor if the population of these developing nations is reduced?
Even the most populated countries like China, India, and others have already developed, and they are still creating other things that will make their citizens enjoy their way of leaving. To me, overpopulation cannot affect the development of a country if the government in such a country is doing well, but in a situation where the government is corrupt, they don’t care about their citizens.
You have a good point here regarding job opportunities. Big population means bigger manpower for a country. However, if the government of that country fails to see that and makes the best out of it then it is possible for them to only see overpopulation as a negative thing.
Yeah. Huge population does not guarantee an economic success either. Governments need to tailor their policies to their unique economic status and social and cultural circumstances. They have to maximize and give importance to the country's natural resources like oil, minerals, farming, even manpower. Maybe each country may copy what other countries do but what works for one country might not work for another. In the end, economic strength or weakness lies beyond the population only.