Raws li Keynesian tus qauv ntawm macroeconomics, aggregate planned expenditure (PE) yog txiav txim siab raws li qhov sum ntawm kev npaj siv nyiaj (C), kev npaj nqis peev (I), npaj Kev siv nyiaj hauv tsoomfwv (G) thiab npaj xa tawm (NX):
Thaum sau cov kev siv nyiaj tau los tsawg dua GDP muaj qhov tsis xav tau?
Yog tias tag nrho cov phiaj xwm kev siv nyiaj tsawg dua li GDP tiag tiag (AE nkhaus yog qis dua 45 ° kab), qhov kev npaj tsis tau nce hauv cov khoom muag ua rau cov tuam txhab tua neeg ua haujlwm thiab txo cov khoom tsim tawm, yog li GDP tiag tiag.
Thaum npaj kev siv nyiaj txiag tsawg dua li GDP tiag tiag li hauv daim duab mus rau sab xis?
Thaum npaj kev siv nyiaj txiag tsawg dua li GDP tiag, ib yam li hauv daim duab mus rau sab xis, yuav ua li cas rau cov tuam txhab cov khoom muag? Cov khoom lag luam khaws cia yog tias tsis tsim khoomscaled rov qab.
Yuav ua li cas thaum tag nrho cov kev siv nyiaj tsawg dua GDP?
Yog tag nrho cov kev siv nyiaj tsawg dua li GDP tiag, nws txhais tau tias tib neeg npaj yuav tsawg dua cov khoom thiab cov kev pabcuam dua li tam sim no tsim Vim tsis yog txhua yam khoom thiab kev pabcuam yuav raug muag, cov ntaub ntawv yuav khoom. Thaum cov neeg tsim khoom pom cov khoom lag luam txhim kho, lawv txo qis kev tsim khoom, thiab GDP tiag tiag poob.
Kev npaj siv nyiaj hauv macroeconomics yog dab tsi?
GDP=kev npaj siv nyiaj =noj + peev + tsoomfwv yuav khoom + net exports. Kev npaj kev siv nyiaj yog nyob ntawm theem ntawm cov nyiaj tau los / kev tsim tawm hauv kev lag luam, vim li hauv qab no: Yog cov tsev neeg tau nyiaj ntau dua, lawv yuav nce lawv cov kev siv nyiaj.
