individual's likelihood of sending costly peer punishment is examined. Actigraphy sleep monitoring watches are used to validate …-parametric as well as regression analysis, we find that when punishment is not available, sleep restriction does not affect the … contributions made to joint production. When punishment is available, we find weak evidence that SR subjects contribute more than WR …

welfare is reduced is that punishment can express anger about free-riding. If this is the case, then tools that regulate …

. To this end, we conduct a repeated public goods experiment with and without punishment using samples from the laboratory … interactive experimentation. We find that basic behavioral patterns of cooperation and punishment in the laboratory are replicable …

inappropriate. More importantly, victims of such abuse also start to believe that punishers' free-riding and punishment are …