Trust the police? Self-selection of motivated agents into the German police force / Guido Friebel (Goethe University Frankfurt, CEPR and IZA), Michael Kosfeld (Goethe University Frankfurt, CEPR, CESifo and IZA), Gerd Thielmann (Deutsche Hochschule der Polizei) ; IZA, Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, December 2016
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