Table 2. Study parameters.

Parameter name	Brief description
n-people	Number of people agents.
prob-resource	The probability that a people agent gets a unit of resource at each time period.
min-energy	The minimal proportion of the resource unit necessary for survival.
sharing-tournament-size	The percentage of people agents with no resource at a time period that can be chosen as a donee by a particular donor.
strategy-tournament-size	The percentage of people agents of the population that a particular agent considers in the imitation process.
prob-mutation	The probability that a people agent decides to follow a new strategy randomly chosen from the strategy space.
rounds-per-generation	People agents can change their strategy, i.e. given-energy and correlation, every rounds-per-generation time periods.