1. ( ) . AD = C + I - . , Y: C(Y) = C0 + cY, - (marginal propensity to consume), 0 < c < 1, C0 - - , . , I = I0.
AD(Y) = C0 + I0 + cY.
C0 + I0 = A0.
2. Y* , AD(Y) AS=Y:
Y* = AD (Y*),
Y* = A0/(1-c)
, " ".
3. Y, < 1. S = Y - C. ,
S(Y) = -C0 + (1 - c)Y, :
S(Y*) = -C0 + (1 - c)A0/(1-c) = I0, .
.
4. .
) : AD(Y) = C0 + I0 + cY,
Y* = (1/(1-c)) *(C0 + I0), , C0 I0 , Y* (1/(1-c))*. (1/(1-c)) - , , 1.
) : AD(Y) = C0 + I0 + G0+ c(Y - Tax), G0 - , Tax - ( - , ). Y*, :
, , (-/(1-c)). .
) : , , :
:
, 1.
P.S.
GDP (gross domestic product) ( ) - , ().
(expenditure approach) GDP , , . GDP = C + I + G + NE
, GDP, AD.
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