Whistle-blower protection : theory and experimental evidence / Lydia Mechtenberg (University of Hamburg), Gerd Muehlheusser (University of Hamburg, IZA and CESifo), Andreas Roider (University of Regensburg, CEPR, IZA and CESifo) ; IZA, Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, March 2017