. |
. (1939) . (1946). |
. : MPK − const (σ); (LS > Ld), (P − const); , ; K/Y ( ); : s − const; − ; - . . |
. | () ; ; − (AD) (AS); − |
Δ I ΔI × (1/s) = I × σ→= σ × s' I 1/s − Δ I × (1/s) − (ΔYAD) I ×σ (σ = MPK = ΔY/ΔK) − (ΔYAS) s' − = S/Y | |
σ (= MPK) , s'. I = S (= s'Y) s −const. , : ΔY/Y = ΔI/I = σ × s' | |
, , s' σ; ( ) ; (K/Y − const - ) |
. | " ", 1948 () ; ; ; I = S; − () |
g | g× c = s |
g = ΔY/Y c = I/ ΔY s = S/Y | |
g × c = (ΔY/Y)×(I/ ΔY) = S/Y → I = S (g × c) , , (s). (ex post). | |
gw | ( ), . gw× cr = s |
s − (ex post) cr − gw − (ex post) (ex ante) | |
., gw× cr = s " ", . s − const → gw − cons cr − const ( ) | |
g = gw . g ≠ gw (" "), . |
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" " |
g gw .
gw
g
| |||
gn | , ( ) | |||
gn × cr = ≠ s cr − const gn = |
g, gw, gn . | ||
gw > gn→gw > g | . . | |
gw < gn gw < g gw = g | (cr > c) , | |
gwgn : . | ||
. 2 | ( " g gw"); ( gw gn, ) | |
− | , ; : − , , ,, ; (K/Y): 20. XX . , − | |
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− ό 20 − 50 . XX., 50 − 70 . ( .) |