.
1 , , , . . , , . -.
2 . , .
3 , , .
12 .
, -, .
12
- , , -, .
.
1 .
2 - - .
.
1 :
, , .
-:
= MRc =MCc,
;
MRc ;
MCc .
, , :
m > MRm = MCm.
,
m / > MCm /MC,
,
m / >MRTxy,
m / = MRSxy,
,
MRSxy >MRTxy.
- .
2 , - .
;
t .
= t (1-t),
t , %.
/ t = MRSxy.
:
/ = MRTxy, t > ,
MRSxy< MRTxy.
, .
(second- best principle), .
: .