2017 Bednarik, Peter. 2017. Competition promotes helping behavior. Spring School in Behavioral Economics, Rady School of Management, UC San Diego, San Diego, Vereinigte Staaten/USA, 05.03-10.03. (Details)
2013 Bednarik, Peter. 2013. Costly partner switching in human social networks reduces linking but maintains high cooperation. Behaviour International Ethological Conference, Newcastle, GroƟbritannien, 04.08-08.08. (Details)
2009 Berger, Ulrich. 2009. Indirect Reciprocity: Image Scoring Stabilizes the Evolution of Cooperation. TECT Conference, IIASA, Laxenburg, Ɩsterreich, 15.09.-18.09. (Details)