I have just been reading an interview with noted psychologist Steven Pinker and three points were worth highlighting from this interview –
How do you explain the decline in violence?
I don’t think there is a single answer. One cause is government, that is, third-party dispute resolution: courts and police with a monopoly on the legitimate use of force. Everywhere you look for comparisons of life under anarchy and life under government, life under government is less violent. The evidence includes transitions such as the European homicide decline since the Middle Ages, which coincided with the expansion and consolidation of kingdoms; the transition from tribal anarchy to the first states. Watching the movie in reverse, in today’s failed states violence goes through the roof.
Do you think commerce helps too?
Commerce, trade and exchange make other people more valuable alive than dead, and mean that people try to anticipate what the other guy needs and wants. It engages the mechanisms of reciprocal altruism, as the evolutionary biologists call it, as opposed to raw dominance.
What else has contributed to the decline?
The expansion of literacy, journalism, history, science – all of the ways in which we see the world from the other guy’s point of view. Feminisation is another reason for the decline. As women are empowered, violence can come down, for a number of reasons. By all measures men are the more violent gender.
The full interview can be found here this requires a subscription. However, a similar presentation can be found on TED here