Firms in a polluting industry can be classified in two groups: newer firms with a cleaner technology that can abate pollution at a lower marginal cost MCLA = (1/2)aL and older firms with dirtier MCHA = aH, where ai is the level of abatement undertaken by firms of type i = L, H. The social marginal benefit of abating pollution from this particular industry is MBA= 120 - A, where A is the aggregate level of abatement in that industry. To design an efficient emissions standard, the government needs to determine which is the efficient abatement allocation (aL, aH). In order to do this, obtain a cost effective abatement allocation (aL, aH)that provides an aggregate abatement level A = aL + aH, and then proceed to determine the efficient level A (Hint: You should obtain that MCA = A=3)
Firms in a polluting industry can be classified in two groups: newer firms with a cleaner technology that can abate pollution at a lower marginal cost MCLA = (1/2)aL and older firms with dirtier MCHA = aH, where ai is the level of abatement undertaken by firms of type i = L, H. The social marginal benefit of abating pollution from this particular industry is MBA= 120 - A, where A is the aggregate level of abatement in that industry.
To design an efficient emissions standard, the government needs to determine which is the efficient abatement allocation (aL, aH). In order to do this, obtain a cost effective abatement allocation (aL, aH)that provides an aggregate abatement level A = aL + aH, and then proceed to determine the efficient level A (Hint: You should obtain that MCA = A=3)
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