Marginal nqi thiab nruab nrab nqi: qhov xwm thiab sib txawv

Marginal nqi - ib tug nqi uas yuav tsum tau tsim ib tug ntxiv chav tsev ntawm cov khoom los yog nyob rau hauv relation mus rau lub kwv yees los yog tiag tiag lawm volume. Nyob rau hauv lwm yam lus, nws yog ib qhov kev nce ntawm cov nqi uas tsim nyog tau txais cov tom ntej no Unit. Yuav nrhiav tau cov marginal nqi yuav tsum tau txiav indices ntawm ob uas nyob ib sab tag nrho cov nqi. Yog li, nyob rau hauv nws daim ntawv marginal nqi yog heev uas zoo sib xws rau cov marginal nqi hluav taws xob ntawm cov khoom.

Marginal lub cev khoom - ib tug kev loj hlob ntawm ntau lawm tso zis nyob rau hauv lub cev units ua nyob rau cov nuj nqis ntawm ib tug ntxiv chav tsev ntawm nce mus nce los nqi, hos lwm cov nqi tsis tau hloov. Piv txwv li, kev tswj cov theem ntawm raw khoom thiab nqi zog, tab sis ua zog cov nqi, yuav li kom qhov ntau lawm ntawm ib tug ntxiv unit. Txawm li cas los, cov nyiaj txiag suav muaj nyiaj ntsuab. Yog li, lub sij hawm marginal nqi yog ntau dua, vim lawv yog qhia nyob rau hauv monetary units, nyob rau hauv sib piv rau lub cev yam khoom, ntsuas nyob rau hauv lub cev units (m, pieces, thiab lwm yam).

Yuav ua li cas yog qhov zoo tseem muab marginal tsom xam nyob rau hauv txoj kev tshawb no ntawm nyiaj txiag cov nqi los yog cov nuj nqis? Nyob rau hauv tus txheej txheem ntawm kev txiav txim siab nyob rau hauv thawj qhov chaw nws los txog rau muab piv rau cov nqi sib piv. Cov no feem ntau tsim nyog tej zaum yuav, piv txwv li, los hloov lub kim kev pab los yog cov ntaub ntawv raw cheaper counterparts. Xws li ib tug sib piv qhov zoo tshaj plaws accomplished siv marginal tsom xam.

Lub marginal nqi yuav tsum tau txawv los ntawm xws li ib tug lub sij hawm raws li "sunk nqi", uas characterizes lub poob lub sij hawm txuam nrog rau yav tas los tau txais uninformed kev txiav txim siab. Piv txwv li, koj muas tau cov khau, tab sis txawm yog vim li cas koj ho tsis tuaj. Koj yog yuam kom muag ntawm ib tug nqi hauv qab no them tus nqi. Qhov txawv ntawm cov purchase price thiab muag nqi nruab nrab yog sunk nqi. Cov yav tas yog poob thiab tsis coj mus rau tus account nyob rau hauv qhov kev txiav txim siab.

Nws tseem yog tsim nyog los paub qhov txawv ntawm qhov nruab nrab thiab marginal nqi. Nruab nrab nqi yog txiav txim los mus faib cov tag nrho cov nqi ntawm ntau lawm ntim. Nws yog ib cuab kev tias lub tuam txhab muaj peev xwm tsis muag khoom rau ntawm hauv qab no nqi nruab nrab, vim hais tias, ces nws yuav tsuas mus tsis muaj nyiaj. Yog li, lub nqi nruab nrab - ib tug tseem ceeb qhia ntawm lub enterprise.

Qhov nruab nrab thiab marginal nqi ntawm ntau lawm yog sib xyaw. Thaum cov nqi nce mus txog tus thawj yam tsawg kawg nkaus, lawv yuav tsum sib npaug zos rau lub thib ob.

Nws yog vim li no hais tias tus me nyuam los tu ntawm tej nyiaj txiag kev txiav txim siab yuav tsum tau nrog los ntawm ib tug paj tau paj, los yog cov kev txwv, tus tsom xam.

Yuav kom ntsuam xyuas cov hauj lwm zoo thiab ineffectiveness ntawm lwm txoj kev daws teeb meem yuav tsum yog raws li nyob rau hauv lub marginal sib piv uas muaj kev soj ntsuam ntawm lub increments nyob rau hauv cov kev txwv, uas yog, nyob rau hauv ciam teb hloov nyob rau hauv ib qhov tseem ceeb. Lub cim ntawm nyiaj txiag kev txiav txim siab kev lom zem ntau thiab txiav txim seb dab tsi yuav ua tau lub marginal nqi, seb tus nqi increment tsis zoo los yog zoo.

Raws li twb tau hais, lub marginal nqi ntawm daim ntawv no yog kev lom zem ntau zoo ib yam li lub marginal nqi hluav taws xob, qhov chaw uas lub ntxiv kev pab ntawm nqi hluav taws xob yog meant. Yog li ntawd, tag nrho cov kev txwv qhov tseem ceeb yuav tsum tau soj ntsuam raws li cov differential tswv yim, vim hais tias nyob rau hauv cov ntaub ntawv no peb yuav sib tham txog cov increment ntawm ntxiv tus nqi (nqi, nqi hluav taws xob thiab thiaj li nyob).

Yog li, lub marginal nqi cia rau lub tuam txhab mus twv seb tus sib tw kev ntawm cov khoom. Ua li no, muab piv rau marginal nqi nkhaus thiab lub mov nkhaus. Qhov siab tshaj plaws profit yog tiav nyob rau hauv lub taw tes rau qhov twg lub mov nkhaus thiab txoj kab ntawm equilibrium nqi raws lag luam yuav tsum tau hla.