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Re: st: movestay and strata


From   Ana <analunhb@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: movestay and strata
Date   Mon, 1 Feb 2010 16:47:43 -0200

Steve,

Thank you very much for your response.
Suppose my stratification is based only on regional design factors. In
particular, suppose my survey has 36 regional strata (region1,
region2, ..., region36).
What would be the correct syntax for the 'movestay' command?

"

movestay (wage = exp education female) [weight = pweight] if [region1
== 1 | region2 == 1 | ... | region35 == 1 | region36 == 1],
select (public = children allincome) cluster(PSU)

"

Is there any other alternative?
How would it be your syntax?

Thanks a lot in advance!
Best regards,
Ana.



2010/1/25  <sjsamuels@gmail.com>:
> Ignoring the strata might lead to larger standard errors, but will
> otherwise not affect the validity of your inference.    If some of the
> strata are based on design factors like "urban/rural" or "region"  you
> might add these to your model.
>
> -Steve
>
>
>
> On Mon, Jan 25, 2010 at 4:44 PM, Ana <analunhb@gmail.com> wrote:
>> Dear Statalisters,
>>
>> My study is based on a complex sample design survey and I use a
>> switching regression model.
>> If I use the 'movestay' command with pweight, my estimates will be
>> unbiased and consistent.
>> However, the standard errors will be based on the weights and clusters
>> and it will not take account the stratification of the survey.
>> Is statistically acceptable to run the 'movestay' command without
>> taking account the stratification of the survey?
>>
>> Best regards,
>> Ana.
>> *
>> *   For searches and help try:
>> *   http://www.stata.com/help.cgi?search
>> *   http://www.stata.com/support/statalist/faq
>> *   http://www.ats.ucla.edu/stat/stata/
>>
>
>
>
> --
> Steven Samuels
> sjsamuels@gmail.com
> 18 Cantine's Island
> Saugerties NY 12477
> USA
> 845-246-0774
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>

*
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