“…Real life offers many examples of situations in which trust forms a bond of a relationship and is reinforced by monetary or/and nonmonetary means. A good example is marriage which in number of societies combine a public pledge -a non-pecuniary 1 For example, Berg, Dickhaut, and McCabe (1995), Ellingson and Johanesson (2004), Engle- Warnick and Slonim (2004), Andreoni (2005), Charness and Dufwenberg (2006), Huck, Ruchala, and Tyran (2007), Bracht and Feltovich (2008), Dufwenberg, Servátka, and Vadovič (2008), Vadovič (2008a, 2008b) and many others. 2 Non-pecuniary mechanism such as a handshake or an agreement which relies on guilt for example is usually observed in the repeated game context and hence monetary incentives could be present via reputation building.…”