Do norms on contribution behavior affect intrinsic motivation? Field-experimental evidence from Germany

This paper studies how imposing norms on contribution behavior affects individuals' intrinsic motivation. We consider the church levy, which the Catholic Church in Germany collects as a charitable donation, despite the fact that the levy is legally a tax. We design a randomized field experiment with treatments informing individuals that the levy is a tax. We demonstrate that treatment effects differ across motivational types. Among weakly...