employment GDP=DI consumption saving
50 280 276 4
55 300 292 8
60 320 308 12
65 340 324 16
70 360 340 20
75 380 356 24
80 400 372 28
Investment=16
16 I
I S S
360 Y380
S=24
300
S=8
GDP=
DI
C S I
430 420 10 20
450 435 15 20
470 450 20 20
490 465 25 20
510 480 30 20
530 495 35 20
550 510 40 20
GDP=
DI
C S I G Aggregate
expenditures
430 420 10 20 20 460
450 435 15 20 20 475
470 450 20 20 20 490
490 465 25 20 20 505
510 480 30 20 20 520
530 495 35 20 20 535
550 510 40 20 20 550
I
470 Y
C+I
550
The condition of equilibrium,Y=C+I+G
45。
C+I+G
20 I
I S
S
470 Y
I+G
550
The condition of equilibrium,S=I+G
Expansionary fiscal policy (扩张性财政政策 )
Increased government spending(增加政府支出 )
Lower taxes（减税）
A combination of the two
Restrictively fiscal policy (扩张性财政政策 )
Decreased government spending(减少政府支出 )
Higher taxes（增税）
A combination of the two
