I downloaded data from penn world table: https://www.rug.nl/ggdc/productivity/pwt/
when importing the data, using the code
Code: Select all
wfopen http://www.rug.nl/ggdc/docs/pwt90.dta
pagestruct() countrycode @date(year) Code: Select all
pageunstack(namepat=*_?,page=unstacked) countrycode dateidThomas
