.
(total cost TC) . ( , ) , - . , , (total fixed cost TFC); , , (total variable cost TVC). , Q :
TS = TFC + TVC. (1)
, , : , , , , . , - ( , , ). , , , , ..
, , . .
(average total cost average cost AC) , . Q ,
(2)
(AFC) ( AVC) :
, ATC = AFC + AVC (5). .
(marginal cost MC) , :
MC = DTC/DQ. (6)
Q, , .. D, :
DTC = DTVC MC = DTVC/DQ. (7)
. , .
5. | . 6. |
. 5, () (TVC) TFC.
, TC = TFC + TVC. , Q.
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(. 6). ( Qa, a ) , . .
, , , AVC, . , ATC , MC , , . , AVC . , , AFC=TFC/Q, TFC=const, AFC Q, AFC .