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Dose-response curves (red and blue) with different parameter settings that all violate the LACC: s1 ≠ s2 (Left) with s1 = 1 and s2 = 2, y∞, 1 ≠ y∞, 2 (Center) with y∞, 1 = 0.3 and y∞, 2 = 0, and (Right) with s1 ≠ s2 and y∞, 1 ≠ y∞, 2 with the same settings as above. Additionally, all other parameters that are chosen to be equal for both Hill curves take the values s = 1, y0 = 1, y∞ = 0 and e = 1.
