st: Does it need to control industry if the concerned variable has been adjusted by industry?

[gjhxmu@sina.com]

Dear statalists,
One variable is characteristic of industry, so I adjust it with the median or mean value of industry.
Then does it need to control industry as regressors if the concerned variable is a dependent variable or an independent variable?
I have tried in stata.However,it is still unclear to me.
What is the difference? or what is the point?

Thank you for any help.
Best regards,
Rose

 

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