Tab sis yog Z tuaj yeem piav qhia ib qho ntawm X (piv txwv li 1, Z=qhov kub thiab txias, X=nqe), lub sij hawm yuam kev cuam tshuam nrog X (li no, tus nqi yog qhov sib txawv endogenous hloov pauv hloov pauv endogenous yog ib qho kev hloov pauv hauv qhov kev hloov pauv endogenous teb rau qhov kev hloov pauv exogenous uas tau ua raws li tus qauv. › wiki › Exogenous_and_endogenous…
Exogenous thiab endogenous variables - Wikipedia
). Yog li, qhov teeb meem ntawm endogeneity tshwm sim thaum peb muaj Z uas cuam tshuam nrog Y, tab sis nws kuj cuam tshuam rau X thiab tsis suav nrog hauv tus qauv.
Dab tsi ua rau endogeneity?
Endogeneity yuav tshwm sim vim qhov kev tshem tawm ntawm kev piav qhia qhov hloov pauv hauv kev rov qab, uas yuav ua rau lub sij hawm yuam kev raug cuam tshuam nrog cov lus piav qhia, yog li ua txhaum qhov kev xav hauv qab qhov qub. Yam tsawg kawg squares (OLS) regression tsom xam.
Yuav ua li cas paub yog tias koj muaj endogeneity?
Qhov teeb meem ntawm cov teeb meem no yog tias tib txoj hauv kev tam sim no paub los tshuaj xyuas qhov endogeneity yog kom nrhiav tau cov cuab yeej tsim nyog, siv lawv hauv qee qhov ntsuas qhov hloov pauv hloov pauv (IV tam sim no) thiab tom qab ntawd kuaj yog tias IV thiab OLS kwv yees ua rau cov txiaj ntsig sib txawv.
Dab tsi yog qhov teeb meem endogeneity?
Endogeneity yog lo lus zoo rau qhov teeb meem yooj yim. … Yog li ntawd, nyob rau hauv qhov dav tshaj qhov teeb meem endogeneity tshwm simthaum muaj ib yam dab tsi cuam tshuam rau koj qhov sib txawv Y uas tseem cuam tshuam rau koj tus X hloov pauv, thiab koj tsis muaj ib yam dab tsi hauv koj tus qauv.
endogeneity yog dab tsi thiab yog vim li cas thiaj muaj teeb meem?
Nyob rau hauv econometrics, endogeneity broadly hais txog qhov xwm txheej uas qhov kev piav qhia sib txawv yog cuam tshuam nrog lub sij hawm yuam kev. … Qhov teeb meem ntawm endogeneity yog feem ntau, hmoov tsis, tsis quav ntsej los ntawm cov kws tshawb fawb ua cov kev tshawb fawb tsis yog kev sim thiab ua li ntawd txwv tsis pub ua cov lus pom zoo.
