The following equations represent the MWTP function and the private MC function in the market for some good where a negative externality (i.e., pollution) results in damages of $12 per unit of the good produced:
MWTP = 400 - QD
MPC = 55 + 0.5QS
Solve for the competitive market equilibrium output and the socially efficient level of output for this market. (Hint: Marginal Social Cost = Marginal Private Cost + Marginal External Cost, thus: MSC = MPC+MEC)
"Please explain in steps"