AD-AS () . IS-LM . () , , , .
IS-LM ( , ) - , , . R Y, .
IS-LM:
1) Y = C + I + G + Xn .
2) C = a + b(Y-T) - , T = Ta + tY.
3) I = e - dR .
4) Xn = g - m'Y - n'R .
5) .
: (), (), I (), n ( ), R ( ).
: G ( ), MS ( ), t ( ).
(, b, , d, g, m', n, k, h) .
, (Y¹Y*), (), R Y . = const, .
, (Y=Y*), . MS ( ) , .
IS . , Y R, , , . IS . IS (Investment = Savings).
IS (. . 9.1). . 9.1, : Y1 Y2 S1 S2. . 9.1, : R1 R2 I1 I2. I1 = S1, I2 = S2. . 9.1,c IS: , .
(. 9.2). . 9.2, : R1 R2 I(R1) I(R2). . 9.2, : Y1 Y2. . 9.2, IS: , .
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IS 2, 3 4 R Y.
IS R :
,
.
IS Y :
,
.
IS Y, .
IS , :
(d) (n) ;
(b) ;
(t) ;
(m') .
G IS . t . IS , , . (d, n, m') , .
LM . Y R, () MS. LM . LM (Liquidity Preference = Money Supply) (. . 9.3).
LM.
. 9.3, , Y1 Y2 , , , R1 R2. . 9.3, LM: , .
LM 5 R Y.
LM :
( R);
( Y).
LM Y, , IS, .
LM , :
(h) ;
(k) .
MS LM .
IS LM (. . 9.4.).
R IS LM Y.
( , .
Y .
R Y IS LM R.
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