Page 236 - DECO402_MACROECONOMIC_THEORY_PUNJABI

smStI ArQSwsqr dy isDWq

È؇ C = α Y t-1 …(ii)
t
I = β (C – C ) …(iii)
t t t-1
smIkrx (2) dw smIkrx (3) iv`c pRiqsQwipq krx iv`c swƒ pRwpq huMdw hY –
I = β (α Y – α Y )
t t-1 t-2
I = β α Y – β α Y ) …(iv)
t t-1 t-2
G = 1 …(v)
t
smIkrx (2), (4) Aqy (5) ƒ smIkrx (1) iv`c pRiqsQwipq krx iv`c swƒ pRwpq huMdw hY –
Y = 1 + α Y + β α Y – β α Y ) …(vi)
t t-1 t-1 t-2
= 1 + α (Y + β α Y ) – β α Y
t-1 t-1 t-2
= 1 + α (1 + β) Y – β α Y …(vii)
t-1 t-2
sUmXulsn dy Anuswr, “jykr swnUM do AviDAW dI rwStrI Awmdn pqw hovy, qW AglI AviD dI rwStrI
Awmdn, Bwirq joV (weighted sum) lYky, AwswnI nwl inkwlI jw skdI hY[ Bwr, insMdyh, sImWq apBog
pRvriq dy nwl sMbMD dy cux gey mul`W qy inrBr krWgy[ ieh mMnky ik sImWq apBog pRivrqI dw mu`l jIro qoN
v`D Aqy iek qoN G`t (0 < α < 1) Aqy qvrk dw mu`l jIro qoN v`D (β > 0) hY, sYmXulsn pMj pRkwr dy ckrIXy
aqwr-cVwv dI ivAwiKAw krdw hY ijnW dw √≈≈ßÙ qwilkw 1 ivc id`qw igAw hY[”
siQqI 1 sYmXUlsn dy ckrIX p~Q (cycleless path) nUM ivAkq krdI hY ikauNik ieh kyvl guxk pRBwv qy
ADwirq hY Aqy qvrk ies ivc koeI kMm nhIN krdw[ ies nUM ic`qr 24.2 (A) iv`c idKwieAw igAw hY[
siQqI 2 pirmMidq ckrIX p`Q (damped cyclical path) nUM ivAkq krdI hY, jo sQyiqk guxk p`Dr dy igrd aqrdw
cVdw hY Aqy holI- holI aus p~Dr q`k bYT jWdw hY ijvyN ik ic`qr 24.2 (B) ivc idKwieAw igAw hY[

sYmXulsn dw prspr kirAw mofl
siQqI mu`l ckr dw ivAwpwr
1. α = .5, β = 0 ckrhIn p`Q
2. α = .5, β = 1 pirmMidq auqwr-cfwau
3. α = .5, β = 2 siQr ivsqwr dy auqwr-cfwau
4. α = .5, β = 3 ivsPotwqmk ckr
ckrhIn ivsPotwqmk p`Q
5. α = .5, β = 4

siQqI 3 siqr ivsqwr (constant amplitudes) vwly ckrW nUM ivAkq krdI hY, jO Kud dy gux –pDr dy igrd
bwr-bwr Gumdy hn[ ieh siQqI icqr 24.2 (C) ivc ivKweI geI hY[
siQqI 4 pRiq-pirmMidq (anti-damped) Aqy ivsPotwqmk ckrW (explosive cycles) nUM pRkt krdI hY[iesdy
leI dyKo icqr 24.2 (D)[
siQqI 5 ckrhIn ivsPotwqmk auqy jWdy p~Q (Cycleless explosive upward path) nwl sMbMD rKdI hY, jo
AwiKr virDI dI ckrvirDI ibAwz dr q`k phuMC jWdI hY, ijvyN icq`r 24.2 (E) ivc ivKwieAW igAw hY[
ijnW pMj siQqIAw dI a`uqy ivAwiKAW kIqI geI hY,auhnW ivcON kyvl iqMn siQqIAW , nM. 2, 3, Aqy 4 dI hI
pRkrqI ckrIX hY[ pr auhnW nuUM G`tw ky kyvl do hI r`KI jw skdI hY ikauik siQr ivsqwr nwl sMbMD rK`x
vwlI siQqI nM. 3 AnUBv ivc nhI AweI hY[ ijQy q`k pirmMidq ck`rW dI siQqI nM. 2 dw sMbMD hY , ieh jykr
inXimq rUp nwl qW nhI, pr ipC`lI A`DI SqwbdI ivc holI rUp ivc G`tdI rhI hY[ “Awmqor qy XuDkwlIn

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