Elasticity of Demand vs Nqe Elasticity of Demand
Zoo ib yam li lub ntsiab lus rau kev nthuav dav ntawm cov roj hmab band, elasticity ntawm kev thov hais txog yuav ua li cas hloov hauv X (uas tuaj yeem yog txhua yam xws li tus nqi, nyiaj tau los, thiab lwm yam) tuaj yeem cuam tshuam rau qhov xav tau ntau. Feem ntau paub thiab yooj yim to taub hom elasticity ntawm kev thov yog tus nqi elasticity ntawm kev thov (PED). Hauv PED, peb saib seb qhov kev hloov pauv ntawm tus nqi tuaj yeem cuam tshuam rau qhov xav tau ntau npaum li cas. Lwm hom kev thov elasticity xws li cov nyiaj tau los elasticity ntawm kev thov thiab hla elasticity ntawm kev thov saib seb qhov txawv xws li cov nyiaj tau los thiab cov nqi ntawm lwm yam khoom muaj feem cuam tshuam rau qhov xav tau. Cov kab lus hauv qab no yuav siv sijhawm ze dua ntawm tus nqi elasticity ntawm kev thov thiab lwm yam elasticity ntawm kev thov thiab piav qhia lawv qhov sib xws thiab qhov sib txawv.
Price Elasticity of Demand
Tus nqi elasticity ntawm kev thov qhia tau hais tias qhov kev hloov pauv hauv kev thov tuaj yeem tshwm sim nrog qhov hloov me ntsis ntawm tus nqi. Nqe elasticity ntawm kev thov yog xam los ntawm, PED=% hloov pauv ntawm qhov xav tau / % hloov pauv ntawm tus nqi.
Muaj ntau qib ntawm elasticity nyob ntawm seb qhov xav tau npaum li cas yog hloov ntawm tus nqi. Yog tias PED=0, qhov no qhia tau hais tias qhov xwm txheej zoo kawg nkaus uas qhov kev thov yuav tsis hloov txhua yam nrog kev hloov pauv ntawm tus nqi, piv txwv yog cov khoom tsim nyog thiab cov khoom siv ntxiv. Yog tias PED tsawg dua 1, qhov no tseem tsis muaj zog vim tias, kev hloov pauv ntawm qhov xav tau qis dua li qhov hloov pauv ntawm tus nqi (qhov kev hloov pauv loj yuav ua rau muaj kev hloov me me ntawm qhov xav tau). Yog tias PED ntau dua 1, qhov no qhia tau hais tias tus nqi elastic thov qhov twg, qhov kev hloov me me ntawm tus nqi yuav ua rau muaj kev hloov pauv loj ntawm qhov xav tau, piv txwv yog cov khoom kim heev thiab cov khoom siv hloov pauv. Thaum PED=1, qhov kev hloov pauv ntawm tus nqi yuav muaj qhov sib npaug ntawm qhov xav tau uas yog hu ua unitary elastic.
Elasticity of Demand
Muaj lwm hom kev thov elasticity, xws li hla elasticity thiab nyiaj tau los elasticity. Hla elasticity yog thaum qhov kev hloov pauv ntawm tus nqi ntawm ib yam khoom tuaj yeem ua rau muaj kev hloov pauv ntawm qhov xav tau ntawm lwm tus. Xws li tus ntoo khaub lig elasticity tshwm sim ntawm cov khoom uas muaj feem xyuam rau ib leeg, thiab tej zaum yuav hloov cov khoom xws li butter thiab margarine, los yog cov khoom pub dawb xws li xaum thiab cov lwv. Raws li rau cov khoom siv hloov, thaum tus nqi ntawm butter nce qhov kev thov rau margarine yuav nce ntxiv raws li cov neeg siv khoom tam sim no tuaj yeem siv margarine es tsis txhob butter (xws li tus nqi ntawm margarine nyob twj ywm tib yam). Nrog cov khoom pub dawb, thaum tus nqi xaum nce qhov kev thov rau xaum thiab cov lwv yuav poob (vim cov erasers tsis muaj txiaj ntsig yam tsis muaj xaum).
Cov nyiaj tau los elasticity ntawm kev thov ntsuas qhov kev hloov pauv hauv cov nyiaj tau los cuam tshuam qhov kev thov; xav tias tus nqi ntawm qhov zoo tsis hloov. Raws li cov nyiaj tau los nce kev thov rau cov khoom tsim nyog thiab khoom kim heev yuav nce. Txawm li cas los xij, qhov kev thov rau cov khoom tsis zoo yuav txo qis vim cov nyiaj tau los nce vim tias cov neeg siv khoom yuav muaj peev xwm yuav cov khoom zoo dua es tsis txhob yuav cov khoom pheej yig dua.
Elasticity of Demand vs Nqe Elasticity of Demand
Elasticity ntawm kev thov qhia tau hais tias qhov kev hloov pauv ntawm tus nqi ntawm cov khoom, tus nqi ntawm cov khoom muaj feem xyuam, lossis cov nyiaj tau los tuaj yeem cuam tshuam rau qhov xav tau ntau npaum li cas. Tsab xov xwm tau saib ntawm 3 hom tseem ceeb ntawm kev thov elasticity uas zoo sib xws vim tias qhov nce lossis txo qis hauv ib qho ntawm 3 yam piav qhia tuaj yeem nce lossis txo qhov xav tau. Qhov txawv yog tias, rau PED, peb xav txog yuav ua li cas tus nqi ntawm cov khoom nws tus kheej tuaj yeem cuam tshuam qhov kev thov thaum, nyob rau hauv tus ntoo khaub lig thiab cov nyiaj tau los elasticity, peb xav txog yuav ua li cas lwm yam xws li cov nyiaj tau los thiab tus nqi ntawm cov khoom muaj feem xyuam rau kev thov.
Summary:
• Nqe elasticity ntawm kev thov qhia tau hais tias qhov kev hloov pauv ntawm qhov kev thov tuaj yeem tshwm sim nrog qhov hloov me ntsis ntawm tus nqi. Nqe elasticity ntawm kev thov yog xam los ntawm, PED=% hloov ntawm qhov ntau xav tau / % hloov ntawm tus nqi.
• Hla elasticity yog thaum qhov kev hloov pauv ntawm tus nqi ntawm ib yam khoom tuaj yeem ua rau muaj kev hloov pauv ntawm qhov xav tau ntawm lwm yam khoom lag luam.
• Cov nyiaj tau los elasticity ntawm kev thov ntsuas qhov kev hloov pauv hauv cov nyiaj tau los cuam tshuam qhov kev thov; xav tias tus nqi ntawm qhov zoo tsis hloov.
