1 Public Service Motivation: A Systematic Literature Review and Outlook Adrian Ritz University of Bern, Switzerland Email: adrian.ritz@kpm.unibe.ch Gene A. Brewer The University of Georgia, USA Email: cmsbrew@uga.edu Oliver Neumann University of Bern, Switzerland Email: oliver.neumann@kpm.unibe.ch June 17, 2013 Conference draft – please do not cite without the authors’ permission. Prepared for the 2013 Public Management Research Association Conference, University of Madison-Wisconsin (USA), 20-22 June 2013.