Notes, Comments and Preliminary results Apr 09 2021 Christoph March and Marco Sahm   Parochial altruism and the absence of the group size paradox in inter-group conflicts   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Sep 07 2018 Lisa Planer-Friedrich and Marco Sahm   Why Firms Should Care for All Consumers   Abstract  Contact Information  Citation  Full Text  -  Note   May 25 2017 Marco Sahm   Risk aversion and prudence in contests   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result