st: tobit and SUR- can it be estimated in Stata?

[Mark Hanly <m.hanly@ucl.ac.uk>]

Dear all,

Further to my posting of yesterday "simultaneous equation tobit - can it be 
estimated in Stata?", I feel my system is probably more like Seemingly 
Unrelated Regression (SUR) than a simultaneous equation system, since none 
of the 3 dependent variables (share of distance travelled by car, by public 
transport and on foot) appears as an independent variable in the other 2 
equations, and yet the independent variables in all three equations are the 
same.

Is there a way of estimating a set of three tobit equations as a SUR in Stata?

Thank you once again for your help,

Mark


Mark Hanly
Research Fellow

ESRC Transport Studies Unit
University College London
London WC1E 6BT
tel +44 (0)20 7679 1584
fax +44 (0)20 7679 1567

www.cts.ucl.ac.uk
www.cts.ucl.ac.uk/seminars

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