Examp1516

Examp1516 - Examples: Chapters 15-16 Examples from the...

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Examples: Chapters 15-16 1 Examples from the Textbook Chapters 15-16
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Examples: Chapters 15-16 2 Chapter 15 Example 15.1: Estimating the Return to Education for Married Women use MROZ reg lwage educ Source | SS df MS Number of obs = 428 -------------+------------------------------ F( 1, 426) = 56.93 Model | 26.3264237 1 26.3264237 Prob > F = 0.0000 Residual | 197.001028 426 .462443727 R-squared = 0.1179 -------------+------------------------------ Adj R-squared = 0.1158 Total | 223.327451 427 .523015108 Root MSE = .68003 ------------------------------------------------------------------------------ lwage | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- educ | .1086487 .0143998 7.55 0.000 .0803451 .1369523 _cons | -.1851969 .1852259 -1.00 0.318 -.5492674 .1788735 ------------------------------------------------------------------------------ ivreg lwage (educ = fatheduc ) Instrumental variables (2SLS) regression Source | SS df MS Number of obs = 428 -------------+------------------------------ F( 1, 426) = 2.84 Model | 20.8673618 1 20.8673618 Prob > F = 0.0929 Residual | 202.460089 426 .475258426 R-squared = 0.0934 -------------+------------------------------ Adj R-squared = 0.0913 Total | 223.327451 427 .523015108 Root MSE = .68939 ------------------------------------------------------------------------------ lwage | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- educ | .0591735 .0351418 1.68 0.093 -.0098994 .1282463 _cons | .4411035 .4461018 0.99 0.323 -.4357311 1.317938 ------------------------------------------------------------------------------ Instrumented: educ Instruments: fatheduc ------------------------------------------------------------------------------ Example 15.2: Estimating the Return to Education for Men use WAGE2 ivreg lwage (educ = sibs ) Instrumental variables (2SLS) regression Source | SS df MS Number of obs = 935 -------------+------------------------------ F( 1, 933) = 21.59 Model | -1.5197389 1 -1.5197389 Prob > F = 0.0000 Residual | 167.176033 933 .179181172 R-squared = . -------------+------------------------------ Adj R-squared = . Total | 165.656294 934 .177362199 Root MSE = .4233 ------------------------------------------------------------------------------ lwage | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- educ | .1224327 .0263506 4.65 0.000 .0707194 .1741459 _cons | 5.130026 .3551712 14.44 0.000 4.432999 5.827053 ------------------------------------------------------------------------------ Instrumented: educ Instruments: sibs ------------------------------------------------------------------------------ reg lwage educ Source | SS df MS Number of obs = 935 -------------+------------------------------ F( 1, 933) = 100.70 Model | 16.1377074 1 16.1377074 Prob > F = 0.0000 Residual | 149.518587
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Examp1516 - Examples: Chapters 15-16 Examples from the...

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