TY - JOUR
ID - st0368
A1 - Belotti, F.
A1 - Deb, P.
A1 - Manning, W. G.
A1 - Norton, E. C.
TI - twopm: Two-part models
JF - Stata Journal
PB - Stata Press
CY - College Station, TX
Y1 - 2015
VL - 15
IS - 1
SP - 3
EP - 20
KW - twopm
KW - two-part models
KW - cross-sectional data
KW - predictions
KW - marginal effects
UR - http://www.stata-journal.com/article.html?article=st0368
L1 - http://www.stata-journal.com/sjpdf.html?article=st0368
AB - In this article, we describe twopm, a command for fitting two-part
models for mixed discrete-continuous outcomes. In the two-part model, a binary
choice model is fit for the probability of observing a positive-versus-zero
outcome. Then, conditional on a positive outcome, an appropriate regression
model is fit for the positive outcome. The twopm command allows the user
to leverage the capabilities of predict and margins to calculate
predictions and marginal effects and their standard errors from the combined
first- and second-part models.
ER -