Two new bargaining games, called "Freedom to Punish (FTP)" and "Right and Choice to Punish (RAP)", are developed, analyzed and tested by means of an experimental implementation. Hypotheses about behavior are developed, discussed and tested. The central hypotheses are aimed at the importance of...

This paper investigates the driving forces behind informal sanctions in cooperation games and the extent to which theories of fairness and reciprocity capture these forces. We find that cooperators' punishment is almost exclusively targeted towards the defectors but the latter also impose a...