Female Inequality -> High Performing Kids

This post over at MR is interesting. He's summarizing the analysis of a final version of a paper that came out in an earlier form in 2004: that male inequality lends support to polygamy, but female inequality girds monogamy...with the conclusion hat female inequality seems to be the more powerful factor in the West:

Economic growth means that some women have higher human capital than others and thus they are better suited at producing and rearing high quality children. Wealthy men with lots of human capital will start to bid for these women and they will have to offer them exclusive status; these men also wish to invest in a smaller number of higher quality children.

In other words, male inequality encourages polygamy while female inequality discourages it. Apparently female inequality has been winning that race.

The hypothesis also helps explain why polygamy unravels so decisively at some point. Since monogamy itself encourages children (including daughters) with higher human capital, initial tendencies toward monogamy are self-reinforcing.