Suppose that two firms, X and Y, face the following abatementcosts:
MAC_X =1.2A_X,                        MAC_Y
= 0.3A_Y
TAC_X = 0.6A_X²
                              TAC_Y
= 0.15A_Y²
Further assume that the combined abatement standard is 40 units forboth firms.
Based on the model given, the cost-effective solution would ariseif

		each firm abates 20 units of pollution
		firm X abates 8 units, and firm Y abates 32 units
		firm Y does all the abating because its MAC islower
		firm X abates 24 units, and firm Y abates 16 units