Is There a Fair Deal?

In economic terms, this term is used for somebody who isn't paying their fair share. The findings of psychology and behavior o economics can help us understand how to make progress. Two swiss economists have run an experiment where they allow people to punish bad actors. So if i see that player s d thinks a lot, is not contributing, then i can privately pay a dollar to take two dollars away from him - so i lose, but he loses more.