What's Driving the Differences in Cooperation?

In a matrilineal society because it's your family that's got the assets you're not really competing over men. So you might expect less diverse females so that is my third type of this. Yeah see all of these things and slowly slowly that's the fascinating part we can get data. We can play games with people and we can get all sorts of interesting data on behavior. Okay and this is and I think I think it's really amazing your research that you do test this hypothesis all over the world to work out what's driving these differences. Can you tell me what you found in Columbia and post-conflict societies?