.


:




:

































 

 

 

 





∆Y / ∆G = 1 / (1 b)

.

:

Y = C + I + G

C = a + bY

Y= + I + G - ; = + bY - .

:

Y = a + bY + I + G => Y bY = a + I + G = Y (I - b) = a + I + G.

Y= (a + I + G) / (1 b), (a + I + G) - , 7, - , , , . , , b (MPC).

Y :

- ; t - .

- :

t = ∆T / ∆Y

t - ; ∆T - ; ∆Y - .

, . , , , .

, .

:

Y = C + I + G + Xn

C = a +b (l - t) Y

Xn = g - m'Y

Y = C + I + G + Xn - ;

= + b (1 - t) Y - ;

X = g - m' Y - .

 

63. . . . . .

, - . , , , . , .
. . . , . - , , , , .
, , . 200 . . MPC = 1/2 100 . . .
, (. 6.3).
, . 200 . ., , , , .
200 . . MPC = 1/2, 100 . ., 100 . .

. 6.3.

, , , . , MPC MPS. , , MPS (ΔT MPS). (ΔT MPC).
, . , , . , - , - , - . , , , .
. , .
, 1 . . C + I + G 1 . ., 1 . . C + I + G 1/2 . ., MPC = 1/2. : , . : MT = MPC MG.

.

. ∆, Yd = Y - ∆ (. 25.2). ∆ * b, Y1 Y2

∆Y = - ∆ * b / (1 b)

∆Y/∆ = - b (1 b) - .

, , :

∆↓ =>

=> ∆↑ =>

=> b * ∆↑ =>

=> b * ∆↑ =>

=> b * ∆↑ =>

=> b(b * ∆)↑ =>

=> b2 * ∆↑ =>

=> b2 * ∆↑ =>

=> b(b2 * ∆)↑ => ..

, , :

= t * Y,

t - .

:

C = a + b (Y - tY) = a + b (l - t)Y,

:

mt - .

:

T = Ta + tY,

- , Y (, , ..); t - .

64. .





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