Nrog rau qhov nce ntawm cov ntau lawm, lub nra ntawm cov nqi ruaj khov rau ib pawg ntawm cov khoom poob, thiab qhov no ua rau txo qis ntawm cov nqi tsim khoom. Txawm li cas los xij, hauv kev coj ua, ib qho xwm txheej feem ntau tshwm sim thaum ib qho kev nce ntawm ntau lawm ua rau qhov ua tsis raug. Qhov no yog vim qhov teeb meem tus nqi marginal.
Cov Lus Qhia
Kauj ruam 1
Qhia kom meej qhov nce lossis txo qis hauv qhov ntau lawm, i.e. teeb tsa Q hloov - ∆ Q (raws Q). Tsim cov kev tsim qauv digital (hauv cov lus), teeb tsa ntau cov ntsuas ntawm cov ntsuas ntau.
Kauj ruam 2
Txheeb xyuas tag nrho tus nqi (TCi) rau txhua tus nqi Q siv cov qauv: TCi = Qi * VC + PC. Txawm li cas los xij, koj yuav tsum nkag siab tias ua ntej yuav suav cov nqi ntawm qhov tsis txawv, koj yuav tsum xam tus nqi sib txawv (VC) thiab cov nqi sib txawv (PC).
Kauj ruam 3
Txiav txim siab qhov kev hloov pauv ntawm tag nrho cov nqi raws li kev nce siab los yog txo qis hauv kev tsim khoom, i.e. txiav txim siab qhov kev hloov pauv hauv TC - ∆ TC. Txhawm rau ua qhov no, siv tus qauv: ∆ TC = TC2-TC1, qhov twg:
TC1 = VC * Q1 + PC;
TC2 = VC * Q2 + PC;
Q1 yog qhov ntim ntawm ntau lawm ua ntej pauv, Q2 - ntim ntau lawm tom qab hloov pauv, VC - cov nqi sib txawv ntawm ib koog ntawm ntau lawm, PC - taag nqi ntawm lub sijhawm xav tau rau lub ntim ntawm ntau lawm, ТС1 - tag nrho cov nqi ua ntej hloov mus rau hauv lub ntim ntawm ntau lawm, TS2 - tag nrho cov nqi tom qab muaj kev hloov ntau lawm.
Kauj ruam 4
Faib qhov nce ntxiv hauv tag nrho cov nqi (∆ TC) los ntawm qhov nce hauv cov khoom lag luam (∆ Q) - koj tau txais qhov nqi tsawg dhau ntawm kev ua ib qhov txuas ntxiv ntawm qhov tawm.
Kauj ruam 5
Teeb lub teeb ntawm cov kev hloov pauv ntawm qhov tsis xws luag cov nqi sib txawv ntawm qhov ntau lawm - qhov no yuav muab cov duab pom ntawm cov qauv lej, uas yuav qhia meej meej cov txheej txheem ntawm kev hloov tus nqi tsim khoom. Ua tib zoo saib rau daim duab MC nkhaus rau koj lub teeb! Qhov kev nkhaus ntawm cov nqi npoo ntawm qhov MC kom meej meej qhia tau tias nrog txhua lwm yam tsis hloov, nrog kev nce hauv kev tsim khoom, qhov nqi tsis nce. Nws ua raws los ntawm qhov no nws yog tsis yooj yim sua kom infinitely nce ntau lawm ntau yam tsis muaj hloov dab tsi hauv kev tsim khoom nws tus kheej. Qhov no ua rau qhov tsis tsim nyog nyob rau hauv tus nqi thiab txo qis hauv cov txiaj ntsig xav tau.
