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So you have to understand how trends workShort of uninventing birth control or making it illegal, by what mechanism do you think the trend will flatten out or reverse? In the past, women knocked out a lot more kids because it was a side effect of their not being effective birth control and the role women had in society as you point out. What we are seeing is the effect of removing those restraints and letting women choose how many children they want. And when given the choice, in every industrialized nation regardless of the underlying culture, women have chosen to reproduce below replacement level even when their government offers them benefits to encourage them to have children.
Are you aware that Mormon fertility rates have plummeted in recent years?
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The incredible shrinking Mormon American family
New research shows that U.S. Mormon families are still larger than the nation’s, but the difference is smaller than it used to be.religionnews.com
And I agree that's a wonderful thing. I've told my daughter that they live in the greatest time in all of human history to be women and I wasn't saying that ironically or with an ulterior motive. I mean it. A big part of my point is that it won't last if women don't choose, on average, to have at least replacement level fertility and there is no industrialized country where that is true except Israel, where a large highly religious group inflates their national fertility rate.
Why do you expect women to start deciding to have more children than you chose to? What do you think is going to make having more children an attractive choice for them?
As an actuary I look at them all the time.
We're talking about declining trends. When you evaluate that to make a prospective projection you have to ask if you think it will continue and if it makes mathematical sense. It can male sense in the short term but long term it almost always has to flatten out or increase
So how low will a trend go? People can't have negative kids so the absolute limit is 0 kids for anyone which is unreasonable. And the more things decline the more the rate rate of decline has to slow. I'll throw out an example:
Note that I made these numbers up. Let's say women used to have an average pf 10 kids and now they have 4. That's a 60% decline which is pretty big. Will things continue at a 60% decline? It would mean that you then go to .4*4 kids =1.6 kids, then .4*1.6=..64 kids.
See how it quickly goes to numbers that are illogical? When it was 10 it had a lot of room to drop but eventually it will hit a baseline and either stay there or increase. People are going to have kids, just maybe not 10. And it might be the people who aren't in a great position to raise then but that's another topic. As I said, I'm a pretty well paid professional and I have 2 sons.
The Mormon fertility decline you mention is a great example of this. They don't want to spend their lives knocking out kids, and nobody has the means to properly support 10 kids. But a lot of people still want a couple and that might be just fine in the long run. 10 kids was really only necessary and sustainable when half of them didn't live to adulthood.....we no longer have that problem.