In a certain industry, there are two firms, A and B, with marginal abatement cost curves given by MACA=600-3eA and MACB=

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In a certain industry, there are two firms, A and B, with
marginal abatement cost curves given by MACA=600-3eA and
MACB=200-eB respectively, where e represents the level of
emissions. Emissions in the industry are currently unregulated, but
the government is contemplating enacting an environmental
regulation that would require industry-wide emissions be reduced by
50%. a. Calculate the total cost of abatement for the industry if
the regulation requires each firm to abate its current emission by
50% in order to achieve the industry-wide target. b. Compute the
aggregate MAC curve. Using the curve calculate the total cost of
abatement for the industry if the industry-wide target were
achieved cost effectively. What would be the regulated level of
emissions for Firm A and Firm B if the industry-wide target were
achieved cost effectively? (process)