C8D6 - reg LGEARN S EXP ASVABC MALE ETHBLACK ETHHISP Source...

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Unformatted text preview: reg LGEARN S EXP ASVABC MALE ETHBLACK ETHHISP Source | SS df MS Number of obs = 540-------------+------------------------------ F( 6, 533) = 47.99 Model | 65.490707 6 10.9151178 Prob > F = 0.0000 Residual | 121.216936 533 .227423895 R-squared = 0.3508-------------+------------------------------ Adj R-squared = 0.3435 Total | 186.707643 539 .34639637 Root MSE = .47689------------------------------------------------------------------------------ LGEARN | Coef. Std. Err. t P>|t| [95% Conf. Interval]-------------+---------------------------------------------------------------- S | .0883257 .0109987 8.03 0.000 .0667196 .1099318 EXP | .0227131 .0050095 4.53 0.000 .0128724 .0325538 ASVABC | .0129274 .0028834 4.48 0.000 .0072633 .0185916 MALE | .2652878 .042235 6.28 0.000 .1823203 .3482552 ETHBLACK | .0077265 .0715863 0.11 0.914 -.1328994 .1483524 ETHHISP | .0536544 .0937966 0.57 0.568 -.1306019 .2379107 _cons | .4002952 .1663149 2.41 0.016 .0735821 .7270083------------------------------------------------------------------------------ 1 DURBINWU HAUSMAN SPECIFICATION TEST When we regressed the logarithm of earnings on years of schooling and other regressors using EAEF Data Set 21, we obtained the output shown above. reg LGEARN S EXP ASVABC MALE ETHBLACK ETHHISP Source | SS df MS Number of obs = 540-------------+------------------------------ F( 6, 533) = 47.99 Model | 65.490707 6 10.9151178 Prob > F = 0.0000 Residual | 121.216936 533 .227423895 R-squared = 0.3508-------------+------------------------------ Adj R-squared = 0.3435 Total | 186.707643 539 .34639637 Root MSE = .47689------------------------------------------------------------------------------ LGEARN | Coef. Std. Err. t P>|t| [95% Conf. Interval]-------------+---------------------------------------------------------------- S | .0883257 .0109987 8.03 0.000 .0667196 .1099318 EXP | .0227131 .0050095 4.53 0.000 .0128724 .0325538 ASVABC | .0129274 .0028834 4.48 0.000 .0072633 .0185916 MALE | .2652878 .042235 6.28 0.000 .1823203 .3482552 ETHBLACK | .0077265 .0715863 0.11 0.914 -.1328994 .1483524 ETHHISP | .0536544 .0937966 0.57 0.568 -.1306019 .2379107 _cons | .4002952 .1663149 2.41 0.016 .0735821 .7270083------------------------------------------------------------------------------ 2 DURBINWU HAUSMAN SPECIFICATION TEST In some data sets the schooling variable is known to be subject to serious measurement error. Sometimes it accounts for as much as 10 percent of the variance in the schooling data. reg LGEARN S EXP ASVABC MALE ETHBLACK ETHHISP Source | SS df MS Number of obs = 540-------------+------------------------------ F( 6, 533) = 47.99 Model | 65.490707 6 10.9151178 Prob > F = 0.0000 Residual | 121.216936 533 .227423895 R-squared = 0.3508-------------+------------------------------ Adj R-squared = 0.3435 Total | 186.707643 539 .34639637 Root MSE = .47689------------------------------------------------------------------------------ LGEARN | Coef. Std. Err. t P>|t| [95% Conf. Interval][95% Conf....
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C8D6 - reg LGEARN S EXP ASVABC MALE ETHBLACK ETHHISP Source...

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