This paper experimentally investigates the effects of a costly punishment option on cooperation and social welfare in long finitely repeated public good contribution games. In a perfect monitoring environment increasing the severity of the potential punishment monotonically increases both...

We investigate how an explicit blank vote option “None of the above” (NOTA) on the ballot paper affects voting behavior and election results in political elections where non-establishment candidates are on the ballot. We report evidence from two online field experiments conducted in the...