Figure 1.

The three possible dynamic regimes for the double goods game.The possible parameter settings for b_v are varied horizontally, starting at c. The possible parameter settings for are varied vertically, starting at 0. Each of the three inset simplexes have the same coordinates, with the top vertex corresponding to all GLY, left to all VOP, and right to all DEF. Each simplex is a typical example of dynamics within its regime. The specific micro-environmental parameters for each example: (1) b_a=37.5, b_v=2, c=1, n=4 for green; (2) b_a=2.5, b_v=7, c=1, n=4 for red; and (3) b_a=2.5, b_v=2, c=1, n=4 for yellow.