Home » Data » Weighting data » Pooled Cross sections
| Re: Pooled Cross sections [message #20192 is a reply to message #10008] |
Tue, 06 October 2020 21:45   |
id709nvz
Messages: 43
Registered: March 2019
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Member |
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Dear,
I have issues which I believe is related to your response.
I am using combined Ethiopian KR file (2000, 2005, 2011, and 2016). I went through DHS forum to get some insight on how to weight the data.
To start with my research question:
I want to analyze the effect of X on Y where X started in 2011 but the survey were collected few months before, so in general 2011 is also a kind of pre treatment. My analysis is a sort of Diff-in Diff. could you please how to use weights accurately. to be precise I used the following command.
*After opening KR file of 2000 survey
gen wgt=v005/1000000
gen weight=(wgt*FEMALE POPULATION)/FEMALE SAMPLE -For KR 2000; FEMALE POPULATION=14619 and FEMALE POPULATION=15367
gen survey=1
*Same procedure for 2005, 2011 and 2016. Except that I used different total number of female population, female sample and with gen survey 2, 3, and 4 respectively. Then I appended the data starting from the latest survey (2016). Afterward, I did the following.
egen cluster=group(survey v021) *V021 is PSU and survey identifies year of survey (coded 1, 2, 3 and 4)
egen stratum=group(survey v022) *v022 is sample strata for sampling error
svyset cluster [pw=wgt], strata(stratum) singleunit(centered)
Is it correct to use: tab x1 x2 [iweight=wgt] or tab x1 x2 [iweight=weight]
how about svy: reg Y x1 x2 (Will this understand the complex nature of the survey).
Added to this: svy is not supported with ivreg2 stata command is there an alternative to this? I simply used ivreg2 with cluster option at v001.
Thank you in advance for any comments.
Kind regards!
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