, . . , - . . . , , . . , . . , ? . : , ? , .
, , . . , (, ) "-" , . "-" - . , , .
(MR - marginal revenue) ( - marginal coast), . . (2 - profit), :
2 = MR-MC.
, .
: , ( - price) ( - marginal coast):
=.
> , . < , . , . .
- .
, , .
, .
: , .
, . , - , () .
, , , , . .
, . . , .