Dab tsi yog cov khoom qis hauv kev lag luam?
Dab tsi yog cov khoom qis hauv kev lag luam?

Video: Dab tsi yog cov khoom qis hauv kev lag luam?

Video: Dab tsi yog cov khoom qis hauv kev lag luam?
Video: kev lag luam (zoo muaj vam) tseem meem tswm koj tus khee yog dab tsi 2024, Hlis ntuj nqeg
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Ib qis dua qhov zoo yog ib kev lag luam lub sij hawm uas piav txog a zoo uas qhov kev thov poob qis thaum tib neeg cov nyiaj tau los nce. Cov khoom qis dua -Qhov uas yog qhov txawv ntawm ib txwm muaj khoom -yog txhua yam uas cov neeg siv khoom xav tau tsawg dua yog tias lawv muaj qib siab dua ntawm cov nyiaj tau los tiag.

Tsis tas li ntawd, dab tsi yog ib qho piv txwv zoo ntawm qhov tsis zoo?

Cov tsheb pheej yig dua piv txwv ntawm qis dua khoom. Cov neeg siv khoom feem ntau yuav nyiam cov tsheb pheej yig dua thaum lawv cov nyiaj tau los raug txwv. Raws li tus neeg tau txais kev pab nyiaj tau los nce, qhov kev thov ntawm cov tsheb pheej yig yuav txo qis, thaum qhov kev thov ntawm cov tsheb kim yuav nce, yog li cov tsheb pheej yig yog qis dua khoom.

Tsis tas li, dab tsi yog cov khoom lag luam ib txwm muaj hauv kev lag luam? Hauv kev lag luam , ib ib txwm zoo yog ib qho zoo rau qhov kev thov nce thaum cov nyiaj tau los nce, piv txwv li nrog cov nyiaj tau los zoo elasticity ntawm kev thov.

Nyob rau hauv no txoj kev, dab tsi yog ib tug inferior zoo nyob rau hauv economic piv txwv?

As opposed to demand for "ib txwm khoom , "uas nce raws li cov nyiaj tau los nce, thov rau cov khoom tsis zoo poob qis thaum cov nyiaj tau los nce. Cov neeg siv khoom ntawm cov khoom qis dua "ua lag luam nce" mus rau tus nqi siab dua khoom sai li sai tau lawv muaj peev xwm them taus. Rice, qos yaj ywm thiab instant noodles yog lwm yam piv txwv ntawm cov khoom tsis zoo.

Qhov sib txawv ntawm cov khoom lag luam qis dua thiab ib txwm muaj yog dab tsi?

Ib qis dua zoo yog hom zoo uas poob rau hauv kev thov thaum cov nyiaj tau los nce. Nyob rau hauv sib piv rau cov khoom qis dua yog cov khoom qub . A li qub zoo ua xwb qhov opposite ntawm ib qis dua zoo; kev thov nce thaum cov nyiaj tau los nce. Cov khoom qub tej zaum yuav yog khau zoo los yog lub npe-brand khaub ncaws.

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