Table 1 Payoffs for meeting thresholds in the three experimental conditions from the perspective of a focal participant in Westville. The payoffs were given each round as an in-game currency of “coins”. The coins were converted to bonus payments at a rate of 1 coin = £0.05. The global only condition had no option to invest in local groups and no local payoff available. Participants could receive multiple payoffs each round if the conditions were met.
From: Social identity and cooperation co-evolve in a multilevel public goods game
Payoff condition | Who gets the payoff | Payoffs in conditions | ||
|---|---|---|---|---|
Global only | Balanced | Global boost | ||
Global threshold met (≥ 4 invested in Allshire) | All members of Allshire | + 2 | + 2 | + 2.5 |
Own local threshold met (≥ 2 invested in Westville) | All members of Westville | N/A | + 2 | + 2 |
Other local threshold met (≥ 2 invested in Eastburgh) | All members of Eastburgh | N/A | + 2 | + 2 |
Kept coin | Participant who kept their coin | + 1 | + 1 | + 1 |
