, .
XVIII ., . . , , , .. .
. , , - . : . . .
. . . .. , , , .
, . ( , ), .. . , .
. , , .
. (). , , , . . , ( . ) . , , .
:
xi i; aik i k; xk k; yi i.
|
|
AD AS. , .
(AD aggregate demand) , . (. 2.1) Y, . AD . . .
. 2.1. AD
AD (. 2.2). , (AD1) (AD2).
. 2.2.
AS (aggregate supp1) , . , .
, AS.
, . Yf. AS (. 2.3).
. 2.3. AS
, (.. , , , ).
AS ( ) ( , ) (. 2.4).
AS, :
();
();
().
. 2.4. S
AS Y, ( Yf). , , , . , , . AS .. . , , , (.., , , , ).
|
|
AS ( Y2 Y3) , . , , , , (, , ..). . .
() AS . . , .. ( ) (. 2.5).
. 2.5.
. :
1. . AS .
2. . , ( ) . , , , AS , .
3. :
. , , , ;
(, ).
AS-AD
( E) P Y (. 2.6).
. 2.6. AS AD
, , , .
( S) (. 2.7) . ( Y) Yf, .
, (. . 2.6).
. 2.7. AS AD
AS D: . , : ; . , , AD (. 2.8). , , AS. AS AD 2.2 2.3 ( ).
|
|
. 2.8.
( )
AD:
1. . AS ( ), .
2. , , , ( Yf), . ( ) , , , , .. . .
3. , ( AD AD3 D4). , Yf, .
AS. AS (. 2.9), , . . ( ). ( AS S3) : .
, , , .
. 2.9.
( )
AS AD , , , .