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From |
"Emma Samman" <emmasamman@rocketmail.com> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: Re: problems with using ineqdeco to calculate inequality measures |

Date |
Wed, 30 Apr 2003 21:28:01 +0100 |

I am having this problem using data from the CASEN as well. However, I already went through the 'zero' values and either changed them to one (if I felt they were valid) or removed them from the analysis. This doesn't seem to have solved the problem though. Best wishes, Emma -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Marcela Perticara Sent: Wednesday, April 30, 2003 4:56 PM To: statalist@hsphsun2.harvard.edu Subject: st: Re: problems with using ineqdeco to calculate inequality measures One of my students had a similar problem some weeks ago. It seems (I am guessing from the info this student sent me) that, although ineqdeco tells you that it wonīt consider those individuals with zero income, these zero incomes cause trouble in the estimation. I havenīt had the time to take a look at the code to figure out what is wrong. Here is the info my student sent me . use casen2000.dta, clear . ineqdeco ymonehaj Warning: ymonehaj has 391 values = 0. Not used in calculations Percentile ratios for distribution of ymonehaj: all valid obs. ------------------------------------------------------------ p90/p10 p90/p50 p10/p50 p75/p25 p75/p50 p25/p50 ------------------------------------------------------------ 9.248 3.290 0.356 3.179 1.825 0.574 Generalized Entropy indices GE(a), where a = income difference sensitivity parameter, and Gini coefficient ---------------------------------------------------------------------- All obs | GE(-1) GE(0) GE(1) GE(2) Gini ----------+----------------------------------------------------------- 0 | ---------------------------------------------------------------------- Atkinson indices, A(e), where e > 0 is the inequality aversion parameter ---------------------------------------------- All obs | A(0.5) A(1) A(2) ----------+----------------------------------- | 0.23445 0.39357 0.66107 ---------------------------------------------- . ineqdeco ymonehaj if ymonehaj>0 Percentile ratios for distribution of ymonehaj: all valid obs. ------------------------------------------------------------ p90/p10 p90/p50 p10/p50 p75/p25 p75/p50 p25/p50 ------------------------------------------------------------ 9.248 3.290 0.356 3.179 1.825 0.574 Generalized Entropy indices GE(a), where a = income difference sensitivity parameter, and Gini coefficient ---------------------------------------------------------------------- All obs | GE(-1) GE(0) GE(1) GE(2) Gini ----------+----------------------------------------------------------- 0 | ---------------------------------------------------------------------- Atkinson indices, A(e), where e > 0 is the inequality aversion parameter ---------------------------------------------- All obs | A(0.5) A(1) A(2) ----------+----------------------------------- | 0.23445 0.39357 0.66107 ---------------------------------------------- . drop if ymonehaj==0 (391 observations deleted) . ineqdeco ymonehaj Percentile ratios for distribution of ymonehaj: all valid obs. ------------------------------------------------------------ p90/p10 p90/p50 p10/p50 p75/p25 p75/p50 p25/p50 ------------------------------------------------------------ 9.248 3.290 0.356 3.179 1.825 0.574 Generalized Entropy indices GE(a), where a = income difference sensitivity parameter, and Gini coefficient ---------------------------------------------------------------------- All obs | GE(-1) GE(0) GE(1) GE(2) Gini ----------+----------------------------------------------------------- | 0.97523 0.50017 0.59582 1.85478 0.52417 ---------------------------------------------------------------------- Atkinson indices, A(e), where e > 0 is the inequality aversion parameter ---------------------------------------------- All obs | A(0.5) A(1) A(2) ----------+----------------------------------- | 0.23445 0.39357 0.66107 ---------------------------------------------- ------------------------------------------------------------------------ -- Profesor Asistente, Universidad Alberto Hurtado Professorial Lecturer, Georgetown University Erasmo Escala 1835, Santiago (Chile) Phone: 692-0267 Fax: 692-0303 http://www.ilades.cl/economia/index.html ----- Original Message ----- From: "Emma Samman" <emmasamman@rocketmail.com> To: <statalist@hsphsun2.harvard.edu> Sent: Wednesday, April 30, 2003 6:22 AM Subject: st: problems with using ineqdeco to calculate inequality measures > I wondered if any ineqdeco users could help with the following problems: > > I have some large household survey-based datasets (about 55,000 > observations unweighted, 5 million weighted). These data are broken down > into 52 subgroups, and designed to be representative at the level of > each subgroup. > > When running ineqdeco 2 unexpected things occur: > > 1. it refuses to calculate General Entropy measures for the dataset > taken as a whole (though it does so for between and within group > components). When I don't specify any decomposition, it still will not > calculate measures for dataset as a whole (though inequal7, for > instance, will). > > 2. it leaves out several subgroups in carrying out the decompositions - > (about 15 to 17, depending on the dataset used) - and I can't seem to > find any systematic reason for this (the sizes of the subgroups omitted > are equal to those included weighted or unweighted). The same problem > occurs when the program is run with and without weights. > > I would be very grateful for any advice. > > Thank you very much in advance. > > Best wishes, > Emma Samman > > > * > * 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/ * * 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/ * * 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/

**References**:**st: Re: problems with using ineqdeco to calculate inequality measures***From:*"Marcela Perticara" <mperticara@uahurtado.cl>

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