. Md, AE.
. .
IS − LM | |
AD, , − | |
− − , P − const − − − (G, T, MS − ) − Y, C, I, Xn, R − | |
1. Y = C + I + G + Xn 2. = a + bY(1 − t) 3. I = e − dR 4. Xn = g − nR − MPM×Y 5. (M/P)d = kY −hR |
IS− | ; R Y (1 −4) ; IS I(r) = S(Y) |
IS . |
(): Y1 Y2 S1 S2 (): R1 R2 I1 I2. I1 = S1 I2 = S2 IS (): , |
IS " " |
(A): R1 R2 I1 I2 (B): I1 I2 AE1 AE2 , Y1 Y2 IS (C): , |
IS (AS > AD Y > AE); IS − (AD > AS Y < AE) |
IS (2 − 4) Y R |
IS Y: a + e 1 − b − d Y = -------- + ---------- G + ---------- T + --------- R 1 − b 1 − b 1 − b 1 − b a + e + g 1 − b Y = ---------------------- + ----------------------- G + ------------------------- Ta + 1 − b(1 −t) + MPM 1 − b(1 −t) + MPM 1 − b(1 −t) + MPM − (d + n) + -------------------------- R T = Ta + tY 1 − b(1 −t) + MPM |
IS R: a + e 1 − b 1 − b R = ----------- + ------ G + ----- T − ---------- Y d d d d a + e + g 1 − b 1 −b(1 −t) + MPM R = ----------------- + --------- G + --------- Ta − ----------------------- Y d + n d + n d + n d + n |
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1 −b(1 −t) + MPM ------------------------- IS d + n ( d,n,b,MPM)/ | |
G T IS. | |
IS , : | ( d n); ( b); ( t MPM) |
LM − | ; ( 5); LM Md = MS |
LM . |
A: ( IS) : Md (Y1) → Md (Y2), R1 R2 LM (B): |
LM ( A) (Md > MS); LM ( B) − (MS > Md). |
LM 5 Y R | ||
1 M h k 1 M Y = ---- × ------ + ------ × R R = ---- × Y − ---- × ----- k P k h h P | ||
k/ h LM Y ( IS). | ||
MS P LM. | ||
LM ,: | ( h); ( k) | |
h = 0 | LM : | |
h = ∞ | LM : | |
IS − LM |
IS LM R Y, − |
, − , . |
IS LM
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IS . , , .. , , , , . LM . , , . LM " " | |
R LM IS Y |
IS . , I = S. LM . , . , , LM. LM | |||
R LM
IS
Y
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