Firms in a polluting industry can be classified in two groups: newer Örms with a cleaner technology that can abate pollution at a lower marginal cost M CLA L = (1/2) aL and older Örms with dirtier M CAH = 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: (a)  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 e§ective abatement allocation (aL;aH) that provides an aggregate abatement level A = a*L , a*H  and then proceed to determine the efficient level A * (Hint: You should obtain that MCA = A/3).

Principles of Microeconomics
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Chapter10: Externalities
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  1. Firms in a polluting industry can be classified in two groups: newer Örms with a cleaner technology that can abate pollution at a lower marginal cost M CLA L = (1/2) aL and older Örms with dirtier M CAH = 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:

(a)  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 e§ective abatement allocation (aL;aH) that provides an aggregate abatement level A = a*L , a*H  and then proceed to determine the efficient level A * (Hint: You should obtain that MCA = A/3).

4. Firms in a polluting industry can be classified in two groups: newer Örms with a cleaner
technology that can abate pollution at a lower marginal cost M cAL= (1/2) a and older Örms with
dirtier M CA, = a, , where a, 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:
%3D
(a) 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 eşective abatement allocation (al;aH) that
provides an aggregate abatement level A = a, a, and then proceed to determine the efficient level A
(Hint: You should obtain that MCA = A/3).
H
Transcribed Image Text:4. Firms in a polluting industry can be classified in two groups: newer Örms with a cleaner technology that can abate pollution at a lower marginal cost M cAL= (1/2) a and older Örms with dirtier M CA, = a, , where a, 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: %3D (a) 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 eşective abatement allocation (al;aH) that provides an aggregate abatement level A = a, a, and then proceed to determine the efficient level A (Hint: You should obtain that MCA = A/3). H
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