use "http://www.principlesofeconometrics.com/poe4/data/stata/mroz.dta", clear
cd c:\temp\stata
log using tsls, replace
gen lwage = ln(wage)

ivregress 2sls lwage exper kidsl6 (educ = mothereduc fathereduc), first
estimates store tsls
estat overid
estat firststage
estat endogenous

ivregress liml lwage exper kidsl6 (educ = mothereduc fathereduc), first
estimates store liml
estat overid
estat firststage

ivregress 2sls lwage kidsl6 (educ exper = mothereduc fathereduc age)
estimates store tsls_2
estat overid
estat firststage
estat endogenous

estimates table tsls liml tsls_2, b(%7.4f) se(%7.4f) stats(N r2_a)
log clos