d SJ7-2 st0123.  Maximum likelihood and two-step estimation...
d  Maximum likelihood and two-step estimation of an
d    ordered-probit selection model
d by Richard Chiburis, Princeton University
d    Michael Lokshin, The World Bank
d Support:  chiburis@@princeton.edu, mlokshin@@worldbank.org
d After installation, type help ^oheckman^

f st0123/oheckman.ado
f st0123/oheckman.hlp
f st0123/oheckm_p.ado
f st0123/oheckman_d2.ado
f st0123/oheckman_lf.ado
f st0123/oheckman_example.do