Laurent, Lehmann; Georg, Nöldeke; Jorge, Peña - Wirtschaftswissenschaftliches Zentrum, Universität Basel - 2014
this framework by delineating three distinct types of helping traits (“whole-group”, “nonexpresser-only” and “expresser … or not expressing helping) and can be subjected to different synergies of scale (arising from economies or diseconomies … dynamics, such as cases of bistable coexistence featuring both a stable equilibrium with a positive level of helping and an …