.


:




:

































 

 

 

 


, . ?




(positive externality) , .

MSB = + , MSB - (marginal social benefit);

- (marginal private benefit); EB- (marginal external benefit).

. , . , , , . , , ' , , . , (. 132). 1 : = MSC. -

- . , 2. -- AE12.

, , .
, . (internalization of an externality) ( ) (). . . ϳ 䳿.

(corrective tax) , , . - (tax-T), = , :

MSB = MSC.

(corrective subsidy) , , .

, (S = ), , , MSB = MSC.

䳿 , . -, . -, . , , , , , . 䳿 . ' .

( ) - , , , , .

, (, , ). , , . , , .

, . , , , , . , , . , .

. :

(PU ) .

(EU) .

(SU): SU = PU + EU

MPU - ;

MEU , ;

MSU .

.

MPU
Q
Q s (MSU = MSC), (MPU = MSC). - SDBEsEi. .

 

, : , , , (, ) .

(, ), , (, ).

 





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