Probit model Nhc li m hnh Probit Nhng v d ng dng m hnh Probit c lng m hnh Probit vi eviews

Kinh t lng - Khoa Kinh t HQG

BS: L Hng Nht - Trn Thin Trc Phng

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Probit model Large purchase (mua xe hi, mua nh) Ngi mua phi tnh ton ch li / chi ph. nuy >0 y < 0

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y = 1 (mua) y = 0 (khng mua)

Khng quan st c quan st c Liu c d on c Prob (y* >0)?Kinh t lng - Khoa Kinh t HQG BS: L Hng Nht - Trn Thin Trc Phng 2

Latent demand modely = x' + ,

~ N (0,1)= Pr ob( > x' ) = Pr ob ( < x ' )= ( x' )

Pr ob( y > 0) = Pr ob( x' + > 0)

Kinh t lng - Khoa Kinh t HQG

BS: L Hng Nht - Trn Thin Trc Phng

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ng dng ca m hnh Probit (yes/no question) Kha nng thi trng tuyn nguyn vng 1. Kha nng c chp nhn lm cty ln Kha nng mua sn phm ca sunsilk sau khi tri nghim chin dch qung co. Kha nng cai nghin thnh cng / thi im d b nghin li sau khi cai nghin.Kinh t lng - Khoa Kinh t HQG BS: L Hng Nht - Trn Thin Trc Phng 4

V du 1: Advertising (sunsilk)Pr ob( y = 1) = Pr ob( y > 0) = ( x' )

mua ngay (targetted group)

nh hng thu nhp, tui mnh bi ad gii, s thch (pano,TV, radio)

Kinh t lng - Khoa Kinh t HQG

BS: L Hng Nht - Trn Thin Trc Phng

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V du 2: Skill Improvementls GRADE c TUCE improv pretest GPA PSI New method

equation window Procs, specify/estimate, method: BINARYKinh t lng - Khoa Kinh t HQG BS: L Hng Nht - Trn Thin Trc Phng 6

Kinh t lng - Khoa Kinh t HQG

BS: L Hng Nht - Trn Thin Trc Phng

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Bng kt xut

Kinh t lng - Khoa Kinh t HQG

BS: L Hng Nht - Trn Thin Trc Phng

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Kinh t lng - Khoa Kinh t HQG

BS: L Hng Nht - Trn Thin Trc Phng

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