. 3.1 IS
Ø .3.2
. 3.2 IS
LM i Y, . LM MD = MS.
: . . :
Lt=L(Y) (3.1)
( ). : , ; .
L=L(i-) (3.2)
L=L(Y;i-) (3.3)
(Ms) , .
,
Ms=L (3.4)
.
LM |
Y |
Lt |
Lt |
Ls |
Ls |
Ms |
i |
A |
B |
i1 |
i2 |
Y1 |
Y2 |
Lt1 |
Lt2 |
Ls1 |
Ls2 |
I |
II |
III |
IV |
. 3.3 LM
Y1 Lt1 ( I), ( II), Ls1 i1. A LM. Y2, . , , i2. B (Y2;i2). LM .3.3.
( IS) ( LM). . , , 3.4. , (Y*,i*), .
. 3.4 IS - LM
IS-LM (AD).
|
|
IS-LM , .
, .
.
3.1 (. .)
. . | |
() | |
() | 0,5 |
(I) | 80 5i |
(G) | |
(a) | |
t | 0,1 |
(TR) | |
(Ms) | |
(def) | |
0,4Y 2i |
) : AD = AS,
AS = Y, AD = Y = C + I + G,
Y = 120 + 0,5×(Y 40 0,1Y + 10) + 80 5i + 100,
Y = 120 + 0,5Y 20 0,05Y + 5 + 80 5i + 100,
0,55Y = 285 5i,
Y = 518,18 9,09i → IS.
. 3.5 IS
) : D = S,
= (3.5)
P = def = 4,
S = 600,
0,4Y 2i =600/4,
0,4Y 2i = 150,
Y = 375 + 5i → LM.
. 3.6 LM
) , ,
IS LM:
Y = 518,18 9,09i, Y = 375 + 10i, , :
IS = LM (3.6)
518,18 9,09i = 375 + 5i;
= 10,16 % → .
: = 375 + 5 × 10,16 = 425,8 (..) → . :
. 3.7
) AD LM, :
S/ = 0,4Y 2i,
Y:
0,4Y = S/ + 2i,
Y = 2,5MS/P + 5i LM (1)
Y , , G:
Y = 120 + 0,5 × (Y 40 0,1Y + 10) + 80 5i + G,
Y = 120 + 0,5Y 20 0,05Y + 5 + 80 5i + G,
0,55Y = 205 5i + G,
5i = 205 + G 0,55Y,
i = 41 + G/5 0,11Y. (2)
LM Y ( (2) (1)):
Y = 2,5MD/P + 5 × (41 + G/5 0,11Y),
Y+0,55Y = 2,5MD/P + 205 + G,
1,55Y = 2,5MD/P + 205 + G,
Y =1,61 MD/P + 0,645G +132,280 → AD.
IS |
Y |
Y3 |
Y1 |
Y2 |
i3 |
i2 |
i1 |
i |
LM3 |
LM |
LM2 |
Y3 |
Y1 |
Y2 |
P2 |
P1 |
P3 |
P |
Y |
C |
A |
B |
AD |
. 3.8 AD
3.2 ISLM
, ∆G=40 (. ). , ?
|
|
G , , . , , Y, . Y , .. . i. I.
IS (IS→IS1), . 3, , (i→i1). , (Y2→Y3). , - (∆Y=Y2Y3) .
, , , .
IS |
IS1 |
LM |
Y |
Y1 |
Y2 |
Y3 |
i |
i1 |
i2 |
E1 |
E2 |
E3 |
3.9 |
, IS, , , .. LM .
. , ( ). , ( ), , LM .
. , ( ) .
ISLM:
1. : , .
2. : , i ( I), .
3. : , LM.
IS |
LM |
LM1 |
Y |
Y1 |
i 1 |
i |
Y |
Y1 |
i 1 |
i 2 |
i |
IS |
LM |
LM1 |
Y |
Y1 |
Y2 |
i 1 |
i |
IS |
IS1 |
LM |
LM1 |
. 3.10 ISLM |
, G; , ?
3.2 (. .)
. . | |
(△G) |
IS1:
Y = 120 + 0,5 × (Y 40 0,1Y + 10) + 80 5i + 140,
Y = 120 + 0,5Y 20 0,05Y + 5 + 80 5i + 140,
0,55Y = 325 5i,
Y = 590,91 9,09i → IS1.
.. LM Y = 375 + 10i, (IS1 = LM):
590,91 9,09i = 375 + 5i,
i1 = 15,32 % → .
|
|
Y1 = 375 + 5 × 15,32 = 451,6 → .
, ∆Y = ∆G × m.
m = ,
∆Y = 40 × 1,818 = 72,72;
= + ∆Y = 425,8 + 72,72 = 498,52 (..).
, :
= = 498,52 451,6 =46,92 (..).
∆ (..), :
MD = MS,
MS + ∆M = MD, (3.7)
MD =(0,4Y 2i)*4,
MD = 1,6Y 8i,
600 + ∆M = 1,6Y 8i,
∆M = 1,6Y 8i 600,
∆M = 1,6 × 498 ,52 0,8 × 15,32 600,
∆M=797,632-12,256-600,
∆M =185,376 (..).
, 227,304 ..