| ε | Equilibrium points (G, I, β) | Stability |
| 1 | (600, 0, 0) | Stable |
| (100, 20, 600) | Stable | |
| (250, 9.8, 129.36) | Unstable | |
| 0 | (600, 0, 0) | Unstable |
| (82.6, 23, 900) | Stable | |
| 0.5 | (600, 0, 0) | Stable |
| (93.7, 21, 686.5) | Stable | |
| (271, 9, 114.5) | Unstable |