Table 1.
Payoff multipliers according to group performance.
| Group Ranking (rk) | Bottom | Top | ||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| Multiplier (μ) | 0.0 | 0.4 | 0.8 | 1.2 | 1.6 | 2.0 |
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