   I might be sorry for asking this question :-)

    I have two equations and I tried to estimate them individually with "lm" and "gls", and then in a system (using systemfit)  with "OLS", "WLS" and "SUR". Quite surprisingly (for myself at least) the results are identical to the last digit.

    Could someone (please!) give a hint as to what am I doing wrong?

Thanks,

mihai
 		
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