| , : Y = C + S. | |
| . . , | ; , , − . . , " ... , , , , , " 1. |
| : − , . |
| C = a + bYd C = a + b(Y − T), T = t ×Y C = a + bY(1 − t) | |
| a − , (a > 0) b − (0 < b < 1; MPC = ∆C/∆Y) t − T − | |
| S = − a + (1 − b)Yd S = − a + (1 − b)(Y − T) S = − a + (1 − b)(1 − t)Y | |
| (1 − b) − (MPS = ∆S/∆Y) |
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1 . , . ., 1978. .157
| () | () |
| ∆ Y = ∆C + ∆S → ∆ Y/∆Y = ∆C/∆Y + ∆S/ ∆Y → 1 = MPC + MPS | |
| () | () |
| APC = C/Y Y = C + S → Y/Y = C/Y + S/Y → 1 = APC + APS APS = S/Y |
| MPC APC | MPC − const , |
| APC : APC = C/Y = (a + bY)/ Y = a/Y + b (a/↑Y) ↓ + b(const) MPC = ∆C/∆Y | → APC > MPC a > 0 |
| a → 0 : MPC APC − const | → APC = MPC |
| : , , , . . " − ". |
|
|
|
| 45 Y = C: . , 45 . C MPC: − → MPC − → MPC C > Y − " " (S < 0) C > Y − S > 0 A − " ", S = 0 |
| S 45 C. X S 45 C: A − " " X − S < 0 X − S > 0 OB − |
45 . . . . , " , 45, " ", " (. ., , 1964. . 47).
, :
A ; A ; A , 0.
| () (). | |
| , , () | ( ) , , Tn = T − TF |
