(market concentration) , ( ), , . 80% , , , 80% 200 , .
(scale effect) (. , . 4).
(marginal cost) . (average cost) . , - - (), (, , (diseconomy)).
(monopoly power) .
(price discrimination) . : ; ; , , ; . : , 2 . . .
(technological innovation) , , . , .
, - (business strategy) . ? ? ? - , .