From: Environmental adversity and uncertainty favour cooperation
$\overline{X}$ | Cooperate | Compete |
---|---|---|
Cooperate | $f\left({R}_{1}\right)+\frac{\Delta}{2},f\left({R}_{2}\right)+\frac{\Delta}{2}$ | α · f(R_{1}), f(R_{2}) + Δ |
Compete | f(R_{1}) + Δ, α · f(R_{2}) | f(R_{1}), f(R_{2}) |