.
.
. , , . , , , (W).
P (dy / dN) = W.
, , - . P (dy / dN) > W, . P, : (dy / dN) = W / P = w, w - .
, . , : ND = ND (w)
: , .
. , , . (N0) .
,
. : W0 = const. , , - y0.
: ND = ND (y).
. - , : wD = dy / dN.
, , .
IS - LM - (y0). (N0), y0. (w0).
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. , W0 / P < w0, (N0). (N0), W0 / P > w0. .
( ), ABN0: w0 N0 , w0 N0. , IS LM.
, , , , Ns .
.
: NS = NS (w).
. , . , , . , .. , .
, : NS = NS (w, i)
, , .
. , .
, , , . , , . , . , . , , .