st: one sided test

["y erc" <yerceylan@hotmail.com>]

Hi

I am regressing y on x1, x2, using "reg" command. I would like to test if 
b1<b2 (cefficents of x1 and x2) is significant. Can you please help me how I 
can do this one sided test using stata? I mean is there a command for this?

Thanks

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