step2: Heckman's two-step method
In ssmodels: Sample Selection Models

step2

R Documentation

Heckman's two-step method

Description

Estimate model parameters via two-step method

Usage

step2(YS, XS, YO, XO)

Arguments

`YS`	Selection vector.
`XS`	Selection Matrix.
`YO`	Interest vector.
`XO`	Matrix of the equation of interest.

Value

Returns a numerical vector with the parameter estimates of the Classical Heckman model via a two-step method. For more information see \insertCiteheckman1979sample;textualssmodels

References

\insertAllCited

Examples

data(MEPS2001)
attach(MEPS2001)
YS <- dambexp
XS <- cbind(age, female, educ, blhisp, totchr, ins)
YO <- lnambx
XO <- cbind(age, female, educ, blhisp, totchr, ins, income)
step2(YS, XS, YO, XO)

ssmodels documentation built on Oct. 4, 2022, 5:06 p.m.