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    Newey and West in panel data

    Morning, I am working on a panel data and i am finding serial correlation and heteroscedasticity. To obtain right regression i would like to use the Newey and West method. So i use the command "newey2 ..., lag(#)". I though that the newey and west method just change the standard error...
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    Stata Graph

    Morning, I am using stata for doing graph with command : "twoway line variable1 variable2 timeVariable" In my database, i have a lot of countries and, when stata do this graph for all the countries, the first point of every curve is joined to the last point of this same curve. Here you...