, - , , . , . : U = u (W, N), W , N . : U = u (W, N, W 0), W 0 .
:
: U = u (W) ( . 9.2);
: U = u (N) ( . 9.2);
: U = u (WN) ( . 9.2);
U = u [(W - W 0) N ], W 0 ( . 9.2).
. 9.3 . W 3.
G, N 0, W 0, . , .
. 9.2. ( )
(WN) , -1 (e D = -1) 0 (M (WN) = 0). W 2, N 2. W 2 BN 20.
W 1, N 1. , , (M (WN)= W 0).
DL. U = u (W, N) N = n (W), , - UW / UN = NW, . . . , .
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. 9.3. ,
, , . . 9.4 . .
. 9.4.
DL, ( D L) . ( D L), , .
.
:
U = u (W, N) = (W - g)q(N -d)1-q,
W ;
N ;
g, d, q .
g d , (W - g) (N - d) . q , 0 <q <1.
g, S, q.
1. : g = 0, d = 0, q = 1.
2. : g = 0, d = 0, q = 0.
3. : g = 0, d = 0, q = 0,5.
4. : g = W 0, d = 0, q = 0,5, W 0 .
( -), , .
, , , , . , . - , .
. 9.5 . p0, p1, p2 , p0 , p0 < p1 < p2, U 1, U 0 .
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. 9.5.
, , W 0. . - , , .
. . 9.5, . U 0 , , .
. 9.6 . , W 1 N 1, -. G U 0 U 1, , p0. G ( ) , , . F, , U 0, , p1. F ( ) , , . . , , - . , - G F ( X NC WC).
N 1 N 2 NC
. 9.6.
, -, , , -, , .
, , , , , . ( ) , .
. 9. 7.
(. 9.7) . , U = u (W), . ( ). () , , , ( ). , ( N 0), I 0, I 1, I 2, I 3 N 0. p0, p1, p2, p3 I 0, I 1, I 2, I 3 DL, . p0 , W 1. , ( ) , I 0 W 0.
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