, , . :
E = C + I + G
. , , , :
Y − Tx + Tr = Yd = C + S,
Y − T = Yd = C + S
,
Y = T + C + S
, :
C + I + G = T + C + S
, :
I + G = T + S,
I + G + Tr = Tx + S
.. =
, :
I = S + (T − G) = Sn
, , . .
. - . , , .
, , :
C = Cd + Cf,
I = Id + If,
G = Gd + Gf,
d (domestic) , , f (foreign) , .
, , , , . , , .
, , , , . , :
|
|
E = Cd + Id + Gd + Ex
Ex (export) .
, , , .
, , , . :
E = (C − Cf) + (I − If) + (G − Gf) + Ex = C + I + G + Ex − (Cf + If + Gf) ,
C + I + G , , ;
Cf + If + Gf , (Im).
:
E = C + I + G + Ex − Im = C + I + G + Xn
Xn , (net export).
, . , , , .
, . , .
(Sf foreign saving).
, , , :
Y = T + C + S
:
C + I + G + Xn = T + C + S
I + G + Ex + Tr = Tx + S + Im
I + G + Ex = T + S + Im
=
:
I = S + (T − G) + (Im − Ex) = Sn + Sf
, , ( , ..). , , . () . , , . , .