Dear Statalist,
I want to combine three datasets. In dataset 1 (my main dataset) I have a panel with firm (ORDINAL) and time (year, from 1990 to 2013) and some other variables as for example sectors and regions. From another dataset 2, I have employment for each sector for the different regions from 1993 to 2007. And from dataset 3 I have employment for each sector for each region from 2008 to 2013. That is, dataset 1 is firms level while dataset 2 and 3 are regional data by sectors.
In order to merge those datasets I am using the following code, where CCAA1 is the id for regions, and newnaceclio is the id for sectors:
My problem is that I need to tell Stata that this is a panel with id(ORDINAL) year(year) but it give me this error
I don´t know what am I doing wrong. Can anyone give me a hand with this?
Thanks in advanced.
I want to combine three datasets. In dataset 1 (my main dataset) I have a panel with firm (ORDINAL) and time (year, from 1990 to 2013) and some other variables as for example sectors and regions. From another dataset 2, I have employment for each sector for the different regions from 1993 to 2007. And from dataset 3 I have employment for each sector for each region from 2008 to 2013. That is, dataset 1 is firms level while dataset 2 and 3 are regional data by sectors.
Code:
+------------------------------------+
| CCAA1 newnac~o year newwor~r |
|------------------------------------|
1. | 1 1 2008 52505 |
2. | 1 1 2009 48966 |
3. | 1 1 2010 49414 |
4. | 1 1 2011 47264 |
5. | 1 1 2012 44904 |
|------------------------------------|
6. | 1 1 2013 47170 |
7. | 1 2 2008 12158 |
8. | 1 2 2009 9815 |
9. | 1 2 2010 9426 |
10. | 1 2 2011 8830 |
|------------------------------------|
11. | 1 2 2012 7919 |
12. | 1 2 2013 9086 |
13. | 1 3 2008 19733 |
14. | 1 3 2009 14942 |
15. | 1 3 2010 13753 |
Code:
+----------------------------------+
| CCAA1 newnac~o year worker |
|----------------------------------|
1. | 1 1 1993 58271 |
2. | 1 1 1994 59180 |
3. | 1 1 1995 57143 |
4. | 1 1 1996 55592 |
5. | 1 1 1997 56492 |
|----------------------------------|
6. | 1 1 1998 56227 |
7. | 1 1 1999 58156 |
8. | 1 1 2000 53856 |
9. | 1 1 2001 53819 |
10. | 1 1 2002 51748 |
|----------------------------------|
11. | 1 1 2003 52904 |
12. | 1 1 2004 50106 |
13. | 1 1 2005 51564 |
14. | 1 1 2006 52516 |
15. | 1 1 2007 52501 |
|----------------------------------|
16. | 1 2 1993 23416 |
17. | 1 2 1994 21481 |
18. | 1 2 1995 22371 |
19. | 1 2 1996 17999 |
20. | 1 2 1997 18396 |
|----------------------------------|
21. | 1 2 1998 22040 |
22. | 1 2 1999 21689 |
23. | 1 2 2000 20450 |
24. | 1 2 2001 20818 |
Code:
merge m:1 CCAA1 newnaceclio year using "D:\Usuarios\dtojeiro\Dropbox\PhD\Second Paper ESEE_DATA\employ_by_
> region_sector_cenae93.dta"
Result # of obs.
-----------------------------------------
not matched 100,990
from master 100,683 (_merge==1)
from using 307 (_merge==2)
matched 26,613 (_merge==3)
-----------------------------------------
. drop _merge
. merge m:1 CCAA1 newnaceclio year using "D:\Usuarios\dtojeiro\Dropbox\PhD\Second Paper ESEE_DATA\employ_by_
> region_sector_cenae09.dta"
Result # of obs.
-----------------------------------------
not matched 116,321
from master 116,205 (_merge==1)
from using 116 (_merge==2)
matched 11,398 (_merge==3)
-----------------------------------------
Code:
xtset ORDINAL year repeated time values within panel
Thanks in advanced.