Ordered social life requires rules of conduct that help generate and preserve peaceful and cooperative interactions among individuals. The problem is that these social rules impose costs. They prohibit us from doing some things we might see as important and they require us to do other things...

Experimental philosophy, as practiced by political philosophers, has tended to use experimental methods to gain leverage on traditional normative and political questions. Typically, these methods are the same ones used in cognitive and social psychology, which is to say non-incentivized,...