Public Goods Game Setup

• 4-person group, 20 rounds
• Each participant donates between [0, 25] each round
• Sum of contributions was multiplied by 1.6 and evenly distributed to participants
• Each participant is informed of the decisions the other participants made in the prior round and how much the other participants made in the prior round (for every round but the first)

Group Setups

• Fixed: Participants play the game with the same three partners in all rounds
• Mixed: The three partners are randomly shuffled each round

Horita, Yukata, et al. “Reinforcement Learning Accounts  for Moody Conditional Cooperation  Behavior: Experimental Results.” Nature, Jan. 2017, doi:http://dx.doi.org/10.1038/srep39275.