Qhov Zoo Ntawm Cov Khoom Uas Ruaj Ntseg

Siab elasticity, txwv tsis pub txav ntawm cov pob qij txha tom qab siv, tsis muaj ntsws, tsis muaj kev cuam tshuam ntawm cov ntshav ncig lossis tshem tawm ntawm cov pob qij txha, qhov cua nkag tau zoo ntawm cov ntaub ntawv, tsis muaj dej ntws los ntawm qhov txhab, thiab nqa tau yooj yim.