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Economics 310

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Economics 310

Lecture 23

Logit Analysis

Ln(L)

Par 2000

sample 1 13081

read (C:\d\Econometrics Classes\ECON310\Class Example\wlottq07205.asc)HESCU1A AGE PERACE PESEX PTERNWA

genr COMPUTER=(HESCU1A.eq.1)

genr AGESQ=AGE*AGE

genr NONWHITE=(PERACE.gt.1)

genr FEMALE=(PESEX.eq.2)

genr EARNING=PTERNWA

LOGIT COMPUTER AGE AGESQ NONWHITE FEMALE EARNING

PROBIT COMPUTER AGE AGESQ NONWHITE FEMALE EARNING

STOP

ASYMPTOTIC WEIGHTED

VARIABLE ESTIMATED STANDARD T-RATIO ELASTICITY AGGREGATE

NAME COEFFICIENT ERROR AT MEANS ELASTICITY

AGE -0.25081E-02 0.80329E-02 -0.31222 -0.43545E-01 -0.40950E-01

AGESQ -0.14546E-03 0.96464E-04 -1.5079 -0.10870 -0.10167

NONWHITE -0.64665 0.51282E-01 -12.610 -0.43395E-01 -0.40679E-01

FEMALE 0.23483 0.37955E-01 6.1870 0.52082E-01 0.50189E-01

EARNING 0.12823E-02 0.56115E-04 22.852 0.32904 0.28472

-0.20415 0.14842 -1.3755 -0.91387E-01 -0.86538E-01

LOG-LIKELIHOOD FUNCTION = -8542.2

LOG-LIKELIHOOD(0) = -9013.1

LIKELIHOOD RATIO TEST = 941.776 WITH 5 D.F.

MADDALA R-SQUARE 0.6947E-01

CRAGG-UHLER R-SQUARE 0.92876E-01

MCFADDEN R-SQUARE 0.52245E-01

ADJUSTED FOR DEGREES OF FREEDOM 0.51882E-01

APPROXIMATELY F-DISTRIBUTED 0.66150E-01 WITH 5 AND 6 D.F.

CHOW R-SQUARE 0.70356E-01

- Coeff LPM = Coeff Logit*0.25 except intercept
- Coeff LPM = Coeff Logit *0.25 + 0.5 for intercept
- Coeff Probit = 0.625 * coeff logit