Table B1. Descriptive Statistics for the Most Common Economic Games Across the Studies Included.
| Variable name | Number of studies | Mean |
|---|---|---|
| Dictator Game | ||
| Students | 8 | .75 |
| Receiver endowment | 8 | .13 |
| Real person | 8 | 1.00 |
| Random payment | 8 | .63 |
| Anonymous | 8 | 1.00 |
| Both roles | 8 | .00 |
| Strategy method | 8 | .13 |
| Prisoner’s dilemma game | ||
| Students | 4 | .75 |
| Real person | 4 | .75 |
| Random payment | 4 | .50 |
| Anonymous | 4 | 1.00 |
| Strategy method | 4 | .25 |
| Trust game | ||
| Students | 3 | 1.00 |
| Real person | 3 | .67 |
| Random payment | 3 | 1.00 |
| Anonymous | 3 | 1.00 |
| Receiver endowment | 3 | .33 |
| Both roles | 3 | .33 |
| Strategy method | 3 | .00 |
| Public goods game | ||
| Students | 2 | .50 |
| Real person | 2 | 1.00 |
| Random payment | 2 | .50 |
| Anonymous | 2 | 1.00 |
| Strategy method | 2 | .00 |