Hello everyone!
I have a panel dataset with year, countries and indicator's estimates, this is my data:


Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input str7 country double year float regulatory_distance
"ARG" 2005 .13480131
"ARG" 2005 .13480131
"ARG" 2006 .14648408
"ARG" 2006 .14648408
"ARG" 2007 .13978474
"ARG" 2007 .13978474
"ARG" 2008 .13534042
"ARG" 2008 .13534042
"ARG" 2009 .13127346
"ARG" 2009 .13127346
"ARG" 2010 .12898874
"ARG" 2010 .12898874
"ARG" 2011 .12866293
"ARG" 2011 .12866293
"ARG" 2012 .13168013
"ARG" 2012 .13168013
"ARG" 2013 .12956065
"ARG" 2013 .12956065
"ARG" 2014 .12827909
"ARG" 2014 .12827909
"ARG" 2015 .12865551
"ARG" 2015 .12865551
"AUS" 2005 .16130497
"AUS" 2005 .16130497
"AUS" 2006 .15125994
"AUS" 2006 .15125994
"AUS" 2007 .14440013
"AUS" 2007 .14440013
"AUS" 2008 .14052497
"AUS" 2008 .14052497
"AUS" 2009 .13581423
"AUS" 2009 .13581423
"AUS" 2010 .13359624
"AUS" 2010 .13359624
"AUS" 2011 .13134517
"AUS" 2011 .13134517
"AUS" 2012 .12964514
"AUS" 2012 .12964514
"AUS" 2013 .12634803
"AUS" 2013 .12634803
"AUS" 2014 .12659031
"AUS" 2014 .12659031
"AUS" 2015 .13436815
"AUS" 2015 .13436815
"AUT" 2005         .
"AUT" 2005         .
"AUT" 2006         .
"AUT" 2006         .
"AUT" 2007         .
"AUT" 2007         .
end
Among others, my country coverage includes European Union as a whole (for which the code is "EUN") and all European Union members. Also, I have regulatory_distance's estimates for EUN but not for single European countries (as shown for Austria "AUT"). I am trying to replace values for European countries (which are missing) equal to the regulatory_distance estimates for the EUN. However, I am not sure how I should accomplish that.
Thanks in advance to whoever is willing to help
Best regards

Alessio Lombini