, , ( coepeiaeicn) , . , .
( - average propensity to consume), - (APS - average propensity to save).
( consumption),
DI - (DI - disposable income).
S (S savings).
. , , .
( - marginal propensity to consume) (. 6.3).
(MPS - marginal propensity to save).
- ,
- .
- .
, . 100%, 100%. , , , . .
(), - (DI). (C=DI). . . ( HG). , ( HG).
, BF . . FD, a DB - . , . 12 . (0) , , (02). ( ) ( ).
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MPS (. 6.4).
(S), - - (DI). , ( - ). DI .
, , , , . , , , , .
, . , , , - , , , .
-
)
, , . , , . , "- :
= + * DI.
- , , (, , ), (. 6.5).
( - aggregate expenditure), - (N! - national income). . , C+I, +I+G . FE .
, , , ( ).
, . , . , . , , S0 NI0. . , - . , , . NIl ( , ). . , , .
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.( )
. .
, . , , () () , .
(, , - ). .
(. 6.6). 1000 , ( ) ( ) 60% 40% . , 1000 600. , 600 , 360 ..
:
1000 (0.60 +0,61+0,62 + 0,63...) = 1000 1 / (1 - 0,6) = 1000 / 0,4 = 2500.
, 2,5 . 1000 , oi , .
(S, I), - (NI). (S). (I0 I1). (FE) .
, 1000 ( 1000 2000 .), 2,5 2,5 ( 5000 7500 .). , .
.
, , , . , , . , , . , , , , . , . , , .
. ! , . , . , , , .
. . , . - ! , .
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. , , . , , , . . (. 6.7).
(AD, A S), - (NI). AS , AD - . FE1 FE2 .
, . , . , .
(+I), (G) (n). (ON), AD = AS.
.
, ( IG -inflationary gap). (FE0 (NI). , ( DG - deflationary gap). (FE2) (NI).
, , , , . , , , .
, . , ( ). , ( ), . , , .
1. , .
, .
, , , .
, () , .
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