Fatma Bircan
Middle East Technical University
Department of Economics
210-2032
Hi,
I try to estimate a double selection model for the labour force
participation (probit 1) and self-employement vs wage employement
choice (probit 2). I use biprobit command and the error message I get
is the following
error . . . . . . . . . . . . . . . . . . . . . . . Return code
2000
no observations;
You have requested some statistical calculation and there are
no observations on which to perform it. Perhaps you specified
if exp or in range and inadvertently filtered all the data.
Obviously the number of observations for LFP is greater than the ones
who only choose b/w self-employement and wage-employement.
How should I specify my dependent variables so that both have the same
number of non-missing observations
Any help appriciated
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
