@article{FellnerSausgruberTraxler2016, author = {Gerlinde Fellner and Rupert Sausgruber and Christian Traxler}, title = {Testing Enforcement Strategies in the Field: Threat, Moral Appeal and Social Information}, journal = {Journal of the European Economic Association}, volume = {11}, number = {3}, pages = {634 -- 660}, doi = {10.1111/jeea.12013|}, year = {2016}, }