- .
U = U (xi)
i = 1, , m ;
i i - ;
= (1, , i, , m) ;
U = U (X) = U (1, , i, , m) ;
1.
U (X11; X2) > U (X12; X2) X11 > X12 δU: δXi > 0
2. , ( < 0)
3. , , , , . (U12 >0; U21 >0)
13. . :=,=,=+
- ( ) ( ).
14. . .
, - ( ) , ( , .
: : .
, , , q.
q = f (x) |
1. , .
2. , .
:
, α , β .
(α + β) , , .
, , ,