Chapter III

smtam::aRkUesdñkic© nig BaNiC¢kmµI smtam::aRkUesdñkic© (Macro Economic Equilibrium)

Aggr

egat

e Ex

pend

iture

Real GDP0 6000m 7000m 9000m

I2 .

I1 .E1.

E2.Y2=C2+I2+G2+NX2

Y1=C1+I1+G1+NX1

. A

.B

Inflation GSP

Recession GDP

45

emKuNvinieyaK (Investment Multiplier)Y = I * 1

MPS Marginal Propensity to saving = 1

1 – MPCWhere : Marginal Propensity to Consuming

Ex: MPC =75% & I =10 million USD, cUrKNna Y=?

IV smtam::aRkUesdñkic© nig BaNiC¢kmµ

lMnigm::aRkUesdækic©KWCasmtarvagplitplCatiBit (Real GNP) nig cMNaysrub¬tMrUvkarcMNay (Aggregate Demand)

smtam::aRkUesdækic© KWCaPaBesµµIKñarvagcMNaysrub ¬tMrUvkar¦ nigcMnYnsrubénp>s>s Bit ¬pÁt;pÁg;¦

cMnucsmtaenAelIbnÞat; $%dweRk nigGsmta A, B enAeRkAbnÞat;enH

karrMkil E1 E2 ³ eKfakMeNInesdækic© II cenøaHesdækic© Gn;fynigGtiprNa

(Inflationary and Recessionary Gaps)

Recessionary Gap ekIteLIgedaysarkMeNIncMNaysrubx<s;CagkMeNIn p>s>s BitrW AD-AS>0

>plvi)ak-karvinieyaKnigkRmitCIvPaBFøak;cuH

-PaBGn;fykargar nikmµPaB ekIneLIg-bBðaasgÁmmaneRcInnigsµúKsµaj

dMeNaHRsay -RTwsþIsamBaØ ³

FnaKarRtUvbBa©uHkarR)ak;¬GacRsUbykBusiness¦-RTwsþI Keynessian ³

begIánCMenOTukcitþnigkIþsgÇwm -RTwsþIRKb;RKg ³

kat;bnßybuKÁlikrWebovtS Inflationary Gap

ekIteLIgedaysarkMeNIncMNayeRKagTuksrubticCagkMeNIn p>s>sBitrW AD-AS<0

>plvi)ak-kMeNInGtiprNa

-KMlatx<s;rvagGñkmannigGñkRk dMeNaHRsay ³ pÞuyBI Recessionary Gap III \TæiBlemKuN (Multiplier Effects)

\TæiBlemKuN KWCapleFobrvagbMErbMrYlplitplCatiBit (Real GNP)

nig bMErbMrYldMbUgéncMNay (Initial

change in Spending) K = In Real GNP Initial Spending

>eKalbMNg ³ vaytMélcMNay !duløapþl;nUvkMenIn GNP b:unµan?

Example : year Real GNP Spending2012 6800m 5800m2013 7400m 6800m

K=?

.kñugkrNIbMErbMrYlcMNayeRbIR)as; (Consumption)

emKuNGacKNna K= 1

1-C

C= emKuNrbs; Consumption

Ex: C= 0.75Yd + 100 Edl Yd= Income disposable

Y = ADC + S + T = C + Ig + G or S + T = Ig + G

Y = C + I + G + NX Or Y= C + I + G + Ex – IM

Where:C= ConsumptionS= SavingsT= TaxIg= Gross InvestmentG= Gov’t Expenditure

karviPaKsmasPaK smtam::aRkUesdñkic© ចំណូលក្រោ��យក្រោលបង់ន្ធ (Disposable Income) មានឥទ្ធិលក្រោល� C&S បុ៉នែន្តមានកត្តា្ត ដ៏ទៃទក្រោទ�ត

Real Assets -Wealth

Financial Assets -Expectation -Real Interest Rate

>ktþaឥទ្ធិលក្រោល�c:-Income -Wealth-Indebtness-Interest Rates-Expectation

MPC = C and MPS = S Y Y