// download rgdpl2 series from PWT as csv, rename “country isocode" to ISO3code and paste into STATA
destring  rgdpl2, ignore("na") replace
replace ISO3code="DEU" if ISO3code=="GER"
drop if ISO3code=="CHN"
replace ISO3code="CHN" if ISO3code=="CH2"
replace ISO3code="ROU" if ISO3code=="ROM"
replace ISO3code="COD" if ISO3code=="ZAR"
label variable rgdpl2 `"GDP pc PPP (PWT 7.1)"'
