summary.heckit {micEcon} | R Documentation |
This function returns a summary of the 2-step-Heckmann / heckit estimation.
## S3 method for class 'heckit': summary( object, ... )
object |
an object of class heckit . |
... |
further arguments passed to summary.glm
and summary.lm . |
summary.heckit
returns an object of class heckit
.
Arne Henningsen ahenningsen@agric-econ.uni-kiel.de
data( Mroz87 ) wooldridge <- heckit( lfp ~ nwifeinc + educ + exper + I( exper^2 ) + age + kids5 + kids618, log( wage ) ~ educ + exper + I( exper^2 ), Mroz87 ) summary( wooldridge ) # summary of the 1st step probit estimation # (Example 17.1, p. 562f) and 2nd step OLS regression