"When an individual obtains a car loan and makes all of the regular monthly payments, the sum of the payments made will exceed the purchase price of the car. This is due primarily to the core principle:"

Suppose that electricity producers create a negative externality equal to $5 per unit. further suppose that the government imposes a $5 per-unit tax on the producers. what is the relationship between the after-tax equilibrium quantity and the socially optimal quantity of electricity to be produced?