As worldwide population increases, resources become increasingly stretched and per capita income goes down (relative to the cost of living). This, in first wor

As worldwide population increases, resources become increasingly stretched and per capita income goes down (relative to the cost of living). This, in first world countries will probably result in a decline in the birthrate. You only need to look towards CA to see where this is already happening. CA with it's excessive regulations has decreased the prosperity of it's people to the point of where it now has x3 times the number of poor people per capita than the national average (that's living cost adjusted ~ mostly due to housing cost and excessive energy costs and countless other regulations that increase living costs). I suspect this has played a roll in the decline of the birth rate in CA, now at the lowest its ever been since the great depression (it's been going down for the last 3 decades). As life becomes increasingly harsh, people have less babies - it's kinda hard to have a kid when your sharing a room in your parent's house, or live 6 to an apartment.