st: How can I add time dummis(without transformation) when I use xtabond

["aha teddy" <ahatidy@hotmail.com>]

Hi all,

When I use xtabond test to the dynamic model, how can I test the time 
effect? Because the xtbond transform the variables in the first 
differences, but I dont want transform the time dummy variables(leave them 
in level). Can anyone help me, thank you very much!

Bean

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