Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: Lincom after sepov


From   "Joao Ricardo F. Lima" <jricardofl@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Lincom after sepov
Date   Wed, 25 Jun 2008 07:31:18 -0300

Dear Prof. Stephen,

thanks for your your answer! Thatīs exactly what I want.

Best Regards,

Joao Ricardo Lima

2008/6/25 Stephen P. Jenkins <stephenj@essex.ac.uk>:
>> ------------------------------
>>
>> Date: Tue, 24 Jun 2008 10:08:30 -0300
>> From: "Joao Ricardo F. Lima" <jricardofl@gmail.com>
>> Subject: st: Lincom after sepov
>>
>> Dear all,
>>
>> I'm writing because I want an advice. I'm using sepov to get FGT
>> indexes for two variables. After estimation I would like to compare
> if
>> the results are statistical different. I am trying to use "lincom",
>> but unsucessfull because sepov stores in e(V) only the estimation
> for
>> the last variable, isnīt it?
>>
>> I am doing this:
>>
>> sepov var1 var2 , p(pl) psu (psu) strat (strat) ci meff
>>
>> And I would like something like this
>>
>> lincom p0[var1] - p0[var2]
>>
>> How can I do this? Is there another way to test if the values of FGT
>> indexes are the same?
>
>
> IMHO -sepov- is redundant. Standard errors for Foster-Greer-Thorbecke
> (FGT) poverty indices can be derived straightforwardly using -svy-
> commands.  Create for each individual their 'deprivation score'  = (1
> - [income/poverty_line])^alpha, -svyset- the data, and then examine
> using -(svy)mean-
>
> For examples, see
> Jenkins, S.P. 2006. Estimation and interpretation of measures of
> inequality, poverty, and social welfare using Stata. Presentation at
> North American Stata Users' Group Meetings 2006, Boston MA.
> http://econpapers.repec.org/paper/bocasug06/16.htm.
>
>
> Note that all the above, and -sepov-, assumes that the poverty line is
> non-stochastic (which would not be the case if defined e.g. as half
> mean income)
>
>
> Stephen
> -------------------------------------------------------------
> Professor Stephen P. Jenkins <stephenj@essex.ac.uk>
> Director, Institute for Social and Economic Research
> University of Essex, Colchester CO4 3SQ, U.K.
> Tel: +44 1206 873374.  Fax: +44 1206 873151.
> http://www.iser.essex.ac.uk
> Survival Analysis using Stata:
> http://www.iser.essex.ac.uk/teaching/degree/stephenj/ec968/
> Downloadable papers and software: http://ideas.repec.org/e/pje7.html
>
> Learn about the UK's new household panel survey, the United Kingdom
> Household Longitudinal Study: http://www.iser.essex.ac.uk/ukhls/
>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
-------------------------------
Joao Ricardo Lima
Professor
UFPB-CCA-DCFS
+553138923914
-------------------------------

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index