A few good links

Nowadays escape from rural North Korea is primarily a matter of cash. (HT: Randall Parker)

Comparing America in 2000 to 1965, mothers and fathers each spend more hours per week on child care.

Evolution is 22% punctuated.

Pigou's pragmatic argument against Pigovian taxes. I think we should use the labratory of federalism to see which Pigovian taxes work better than others.

"For every 10 per cent decrease in population density, the chances of people talking to their neighbours weekly increases by 10 per cent, and the likelihood they belong to hobby-based clubs jumps by 15 per cent."