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which falls as the residual pool of defectors, 1 - x - y , shrinks. Once a group happens to reach a state where
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Equation 14 · Evolutionary Psychology
Why We Punish Strangers: The Evolution of Human Cooperation
This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.
which falls as the residual pool of defectors, 1 - x - y , shrinks. Once a group happens to reach a state where