You should be able to answer this for yourself from your understanding
of your research problem. I can imagine situations in which the tobit is
regarded as flawed for this reason, and parts in which it is a feature. 
N.B. I am not a Professor. 
Nick 
[email protected] 
amatoallah ouchen
Thanks a lot for your interest Professor Nick,
As I'm using  a time series data in my tobit model, someone asked me
if I've already checked the stationarity of my data , something we do
before running any linear regression for example, so I'was wondering
if I should check it even for my my tobit model .
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