He praises America 3.0 for its reliance on Emmanuel Todd. Pointer from Tyler Cowen.
The Micklethwait post links to earlier posts on Todd. I found the one on the eight family systems most useful. When it is typical for married sons to live with their parents, does the country end up Communist? Read the post.
Eyeballing the list, it does look like cohabitation of married sons and parents is correlated with “communism”. It also looks like the most important strategy is to avoid consanguine marriage. The African system is interesting in that it also looks like the Caribbean and African American systems.