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I am relatively new to Stata but I am now required to do interaction effects with my data
My data simplified looks like this
country scode year INV NR INF
Angola 540 1995 - 112 13
Angola 540 1996 - 75 4
Benin 434 1995
INV = investment
NR = natural resource rent as % GDP
INF = inflation
I have 40 countries that have observations from 1995-2011, the INV variable data only starts in 2000. INV represents the amount of new investment in that country at that given year.
My hypothesis is that the NR effect on INF is conditioned by INV, all 3 variables are continuous. My first hurdle is that I need a variable that has observations for INV if year = 2000/2011 regardless of the country.