*
* Example from section 7.5.1 starting page 185
*
open data cps_small.dat
data(format=free,org=columns) 1 1000 wage educ exper female black white midwest south west
*
set lnwage = log(wage)
*
linreg lnwage
# constant educ female
*
disp "Exact estimate of wage gap" exp(%beta(3))-1.0
*
* SUMMARIZE can compute the value and standard error (using the delta method) for
* a non-linear function of the coefficients.
*
summarize exp(%beta(3))-1.0
*
set educ_exper = educ*exper
linreg lnwage
# constant educ exper educ_exper
*
summarize(title="Marginal Effect of Experience at 16 years of education") %beta(3)+%beta(4)*16