Editing Game theory (section)

===Trust game===
The Trust Game is an experiment designed to measure trust in economic decisions. It is also called "the investment game" and is designed to investigate trust and demonstrate its importance rather than "rationality" of self-interest. The game was designed by Berg Joyce, John Dickhaut and Kevin McCabe in 1995.<ref>{{cite journal |last1=Berg |first1=Joyce |last2=Dickhaut |first2=John |last3=McCabe |first3=Kevin |title=Trust, Reciprocity, and Social History |journal=Games and Economic Behavior |date=July 1995 |volume=10 |issue=1 |pages=122–142 |doi=10.1006/game.1995.1027 }}</ref>

In the game, one player (the investor) is given a sum of money and must decide how much of it to give to another player (the trustee). The amount given is then tripled by the experimenter. The trustee then decides how much of the tripled amount to return to the investor. If the recipient is completely self interested, then he/she should return nothing. However that is not true as the experiment conduct. The outcome suggest that people are willing to place a trust, by risking some amount of money, in the belief that there would be reciprocity.<ref>{{cite journal |last1=Johnson |first1=Noel D. |last2=Mislin |first2=Alexandra A. |title=Trust games: A meta-analysis |journal=Journal of Economic Psychology |date=October 2011 |volume=32 |issue=5 |pages=865–889 |doi=10.1016/j.joep.2011.05.007 }}</ref>