, , . . |
. . , , "− " (Price-Consumption-Curve, PCC) |
PCC | PCC | PCC |
"− " |
, .. ( ) (Px/PY = const) |
, , " − " (Income-Consumption-Curve, ICC). |
ICC ( ) | ICC ( ) | ICC (X − ) (Y − ) ( ) |
" − " " − ", . |
ICC . |
ΔI/ΔX, ΔI − , ΔX − () = PxX (PyY) |
: , ΔX < ΔI | : , ΔX > ΔI |
2 : , ΔX = ΔI | : I1 − ( ) |
|
|
( ) |
1. ( EyD > 0, EyD = 1, EyD < 0. , . | |
, é | |
2. , ( BC), − . , , . | |
3. . | |
, . |
2.6. ( − )
. | |
, ΔXsub | |
: () () | |
, ΔXinc | , |
. , 0 . |
Δ X = ΔXsub + ΔXinc |
. " "(1915), 1936 ., . " ". . " " (1939) |
|
|
( .) |
AB(1) − U0 − 0 − X (↓Px) Py, I − const AB AB1 (2) − E1 X0X1 − X |
, X X . A'B' (3) AB1 (2). AB1 A'B' − . A'B' (3) U0 E'. , E0 E' . X E0 E' X Y. , X0X1 − X . | U0 U1 : E' E1 Px Py. X'X1 − . |
X0X1 = X0X' − X1X' |
X − AB (1) − U0 − E0 − X (↓Px) Py, I − const AB(1) AB1 (2) − E1 U1 |
X X0X' ( ), , X, − X X1X' ( ). , , , X0X1 . |
X0X1 = X0X' − X1X' |
X1X' X ( ) X0X' ( ). X0X1 X. |
X0X1 = X'X1 − X0X' |
ΔXsub + ΔXinc > 0 | ΔXsub > ΔXinc ΔXsub − ΔXinc > 0 | ΔXinc > ΔXsub ΔXinc − ΔXsub < 0 |
: | : |