# Replicate Table III in Mankiw, Romer and Weil, QJE 1992
open mrw.gdt

genr y60 = log(gdp60)
genr growth = log(gdp85) - log(gdp60)

# set sample to non-oil producing countries
smpl nonoil --dummy
m1 <- ols growth const y60
modeltab add

# set sample to the "better data" countries
smpl intermed --dummy --replace
m2 <- ols growth const y60
modeltab add

# set sample to the OECD countries
smpl OECD --dummy --replace
m3 <- ols growth const y60
modeltab add

modeltab show