Since the standard economic models failed to explain non-selfish actions made by people, researchers begun to develop models of social preferences. One of those types are reciprocity models, in which peoples’ desire to raise or lower the payoff of others depend on how fairly those others are behaving. However, even though much research has been conducted on the topic of reciprocity, there is still a lack of evidence for the existence of positive reciprocity. The main purpose of this thesis is to design an experiment that examines the extend of positive reciprocity. Also, a pilot project is executed. The results of this pilot project indicate statistical significant evidence for the existence of positive reciprocity. Even though this pilot project has its’ limitations, it shows the necessity of further research on this topic.