the increase in gepth statistically if it is not possible to have a direct link but you do analysis from you can find out that this is in the long term
Concerning the increase in GDP, statistically of course it is not possible to have a direct link, but you can do correlation analyses from which you can find out that this is correlated in the long term.
the increase in GDP, statistically of it is not possible to have a direct link, but you do analyses from you can find out that this is in the long term.