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, (). () , .

() (Total revenue TR) , . :

TR =pQ

(Average revenue AR) , :

AR = TR / Q

(Marginal revenue MR) , ( ):

MR = ΔTR /ΔQ

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

, . , . , , , :

, ;

, , ;

, , ;

, . . , , .

 

, , .

, , .

. = . + .

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

(. > .) .

, , . . . = 0, , , .

, , , .

, , . , , , .

(fixed cost FC ) , . , . , , , , .. , .

(variable cost VC ) , . , , , , . .

, ( Q1) . .

() (total cost TC ) , .

T = FC + VC.

() (Q): TC = ƒ(Q). : Q = ƒ(TC).

() (. 2.14).

 

. 2.14 ,

 

, .. , .

(average fixed cost AFC ) :

AFC = FC / Q.

 

(average variable cost AVC ) :

AVC = VC / Q.

U- . , . , . . .

(average total cost ATC ) , ( ).

 

ATC = TC / Q; ATC = AFC+AVC.

U- (. 2.15).

. 2.15

(marginal cost) , () . .

MC = ∆TC / ∆Q.

 

TFC = const, .

MC = ∆TVC / ∆Q.

. , . , MC < AC, . AVC MC. MC < ATC MC < AVC, . MC > ATC MC > AVC, . MC = AC, .

, . , (. 2.16).

 

. 2.16

 

(LAC). , . . LAC , , . LAC , (. . 2.16). Q* LAC, AC*. , .

. , LAC , .. AC . , LAC . , .

-. , , , , . , . . (LMC), .





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