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bdkbZµ18% vkbZ ,l&,y ,e fo'ys"k.k
gS tks okLrfod {ks=k rFkk ekSfnzd {ks=k nksuksa dks ,dhÑr djrk gSA C;kt dh nj rFkk okLrfod GDP dk ,d uksV
lkFk fuèkkZj.k vkSj AD oØ dh oSdfYid O;qRifÙk (Alternative Derivation of AD Curve) vkbZ ,l&,y ,e
fo'ys"k.k dk ewykèkkj (Cornerstone) gSA okLrfod GDP rFkk C;kt dh nj osQ fuèkkZj.k esa tsúvkjúfgDl rFkk
gsUlu pw¡fd okLrfod rFkk ekSfnzd {ks=k nksuksa dks la'ysf"kr (Synthesise) djrs gSa] blfy, muosQ n`f"Vdks.k dks
^fgDl&gsUlu la'ys"k.k* (Hicks-Hansen Synthesis) dgk tkrk gSA IS rFkk LM oØ osQ larqyu dk vFkZ gS
eqnzk dh ek¡x vkSj iw£r osQ chp lekurk ,oa cpr rFkk fuos'k osQ chp lekurk }kjk larqyu C;kt dh nj rFkk
okLrfod GDP osQ larqyu Lrj ij fuèkkZj.kA C;kt osQ fu/kZj.k dk ;g n`f"Vdks.k C;kt nj fuèkkZj.k dk vkèkqfud
fl¼kar dgykrk gSA orZeku vè;k; ;g O;k[;k djrk gS fd vkbZ ,l rFkk ,y ,e (IS-LM) oØ oSQls O;qRiUu
(Derive) fd, tkrs gSa vkSj larqfyr okLrfod GDP rFkk C;kt dh nj dk fuèkkZj.k oSQls gksrk gSA blosQ vfrfjDr
vkbZ ,l&,y ,e fo'ys"k.k ls ge lexz ek¡x oØ (Aggregate Demand Curve) Hkh O;qRiUu djrs gSa vkSj bl
ckr ij è;ku nsaxs fd vkbZ ,l vFkok ,y ,e esa f[kldko (Shift) lexz ek¡x oØ esa f[kldko oSQls ykrk
gSA
uksV~l C;kt dh nj fuos'k osQ Lrj dks izHkkfor djrh gSA
18-1 IS oØ vkSj bldh O;qRifÙk (mRikn ck”kkj larqyu)
(IS Curve an Its Derivation (Product Market Equilibrium))
IS oØ C;kt dh nj vkSj okLrfod GDP osQ ml la;ksx dks izdV djrk gS tks cpr (S) RkFkk fuos'k (I) osQ
chp lekurk LFkkfir djrk gSA fYkIlh rFkk fozQLVy osQ vuqlkj ¶IS oØ C;kt dh nj ,oa okLrfod GDP
dk la;kstu ¯cnq gS tks bfPNr O;; ,oa mRikn vFkok {kj.k ,oa lekos'k lekurk dh ,d:irk gSA ;g
ljdkjh O;;] fu;kZr] ,oa Lopkfyr miHkksx rFkk nh gqbZ dj njsa vkSj fn, gq, dher Lrj osQ ewY;ksa osQ
fy, [khapk tkrk gSA¸ (The IS curve is the locus of interest rate and level of GDP that are consistent
with equality between desired spending and output, or what is the same thing, injection and leak-
ages. It is drawn for given values of government spending, exports, and autonomous consumption
as well as for given tax rates and a given price level.–Lipsey and Chrystal)A vr,o IS oØ vFkok IS
iQyu oLrq cktkj larqyu dk laosQr nsrk gSA
IS oØ dh O;qRifÙk esa nks voLFkk,¡ vkrh gSaA igyh voLFkk eas fuos'k rFkk C;kt dh nj esa lacaèk fuos'k ek¡x
iQyu (Investment Demand Function) }kjk LFkfir gksrk gS vkSj nwljh voLFkk esa ge ;g O;k[;k djsaxs fd
fuos'k O;; esa ifjorZu fdl izdkj okLrfod GDP dks izHkkfor djrk gSA C;kt dh nj rFkk okLrfod GDP
dks tksM+ dj oLrq cktkj esa ge larqyu LFkkfir djsaxsA
I. fuos'k ek¡x iQyu (The Investment Demand Function)
C;kt nj (r) rFkk fuos'k (I) esa lacaèk (Relationship between r and I)
blls vfHkizk; fuos'k vkSj C;kt dh nj osQ chp foijhr lacaèk gSA C;kt dh Å¡ph nj ij] fuos'k dh okafNr nj
de vkSj C;kt dh uhph nj ij] fuos'k dh okafNr nj vfèkd gksxhA fuos'k vkSj C;kt dh nj osQ chp dk;kZRed
lacaèk fuEUk izdkj ls fy[kk tk ldrk gS%
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