Hello,
I would like to sum the variable "tax" by "year" (2001-2004) and
"industry" (between 31 and 39) if the variable region (between 1 and
13) satisfies some conditions, like: region<=4; region==5 & 6 & 7 & 13
and if region==8 & 9 &10 & 11 & 12. This way I can create a new
variable: "zones", which is the sum of "tax" payed in an "industry" X
in the "year" 200X considering the range of regions defined before.
I post part of my dataset below.
tax year industry region
300 2001 31 1
230 2001 32 1
300 2002 31 2
110 2002 33 3
240 2003 31 4
260 2004 32 3
10 2004 33 13
300 2001 31 5
230 2001 32 6
300 2002 31 2
110 2002 33 7
240 2003 31 13
260 2004 32 8
10 2004 33 9
240 2003 31 7
260 2004 32 10
10 2004 33 2
240 2003 31 11
260 2004 32 12
10 2004 33 2
I've tryed using:
bysort year industry: egen tax_zones=sum(tax), by(industry ano) if
region==5 & region==6 & region==7 & region==13
But it didn't work. Please, do you know how can I do this???
Thanks in advance!
Leonor
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