My first impression of the surname mobility research (incidentally, I heard it was reproduced based on university data from other countries) was that it was strong evidence of the heritability of social status / social class, but not necessarily evidence of genetic heritability.
Sure, but the discussion of the question 'do the rich outreproduce the poor' doesn't necessarily entail that either. The surname research could show outreproducing (rich surnames becoming progressively overrepresented over time) but I'm not sure whether this overlaps or is disjunct or identical to the will data used in AFTA.
I recently read an article by Steve Sailer that reminded me about something I have been puzzled by for a long time. Relevant paragraphs:
Poor people having fewer children means that the children have more resources available per capita making the children better off. Rich people having more children actually increases equality in society since it reduces the per capita resource advantage their children have. Rich people giving to their children is also one of the few cases where the redistribution of wealth doesn't reduce incentives for wealth creation. Rich people care about their children too.
Since programs aimed at reducing teen pregnancy rates do seem to have had some effect, we known something like this is possible without being horrible to the potential parents it targets.
Yet a policy of "poor people should have fewer children, rich people more" sounds heartless despite increasing general welfare both by making poor children better off and by reducing the privilege of rich children thus increasing equality which we seem to think is ceteris paribus a good thing.
Why is that?
Edit: To test the source of the reader's intuiton (assuming he shares it with me), I encourage the consideration of two interesting scenarios that may depart from reality.