Fecundidad en adolescentes y desigualdades sociales en. The main purpose of this project is to produce a comprehensive package of stata modules to help analyze the distribution of living standards. The program somersd calculates confidence intervals for kendalls taua or somers d, and stores the estimates and their covariance matrix as estimation results. On april 23, 2014, statalist moved from an email list to a. I am sorry that this question is irrelevant to stata. Theil, inequality and the structure of income distribution. Michals proposal will allow calculation of theil indices. It is the left over information space that was not utilized to convey information, which reduces the effectiveness of the price signal. Easypol module 051 theil index and enropy class indexes. The theil index is a statistic primarily used to measure economic inequality and other economic phenomena, though it has also been used to measure racial segregation. Helping students to measure income and health inequality using.
Stata module to calculate inequality indices with decomposition by subgroup, statistical software components s366007, boston college department of economics, revised 22 jan 2015. All the ingredients to carry out both the static decomposition of the index shorrocks 1980, econometrica and the dynamic decomposition mookherjee and shorrocks 1982, economic journal are easily accessible among the saved results of ineqdeco. Theil decomposition decompose income inequality between and. It is a revised and upgraded version of inequal published by edward whitehouse in stb23. Section 4 introduces a general class of inequality indices foreshadowed by theil s work and section 5 its properties. The result inequality value of the subgroup indices seems like the population is. As the help for ineqdeco explains, the program is intended for. We introduce a userwritten stata command conindex which provides point. Ge0 is the mean logarithmic deviation, ge1 is the theil index, and. Our antivirus check shows that this download is clean. Estimation of inequality indices with decomposition by subgroup. Estimating within country and between country theil.
Decompose theil index for data including zero values no. Particularly useful are the class of additively decomposable indices, for which total inequality can be written as the weighted sum of inequality within each subgroup, plus inequality between groups. Sgini and concentration coe cients from unitrecord data not grouped data in stata. If you really wanted the theilsen median slope, then download the somersd package from ssc, which calculates confidence intervals for it. In statistics, the pearson correlation coefficient pcc, pronounced. It can be viewed as a measure of redundancy, lack of diversity, isolation, segregation, inequality, nonrandomness, and compressibili. Stata module to calculate inequality indices with decomposition by subgroup. The somersd package contains the programs somersd, cendif and censlope, which calculate confidence intervals for the parameters behind rank or nonparametric statistics. Philippe van kerm statistical software components from boston college department of economics. Either theil s first, or t, index or theil s second, or l, index decomposition can be requested. Ge0 is the mean logarithmic deviation, ge1 is the theil index, and ge2 is half the.
For the convenience of users of earlier versions of these programs, a selected set of. These two indexes were initially presented by theil 1967 and have been widely applied in the social and economic sciences. Ive been advised to use ineqdeco however, ive no experience with the command. Srinivasulu rajendran centre for the study of regional development csrdjawaharlal nehru university jnu new delhi india r. If you really wanted the theil sen median slope, then download the somersd package from ssc, which calculates confidence intervals for it. The commands shown in this page are userwritten stata commands that must be downloaded. It is now well known that the only indices with this property belong to the socalled generalized entropy ge class, which includes the two theil indices and the coefficient of variation. Stata module to estimate price, quantity, and value. Stata module to produce refined theil index decomposition by group and. Stata module to estimate price, quantity, and value index numbers, statistical software components s458005, boston college department of economics.
Stata module to produce refined theil index decomposition by group and quantile, statistical software components s458187. Stata and tips on using the software, announcements of new releases and updates, feature highlights, and other announcements of interest to interest to stata usersis sent to all stata users and those who request information about stata from us. This is not quite right in the sense that one can calculate a theil index when there are zero values using a modified version of the standard formula. It is a special case of the generalized entropy index. The theil index tt is the same as redundancy in information theory which is the maximum possible entropy of the data minus the observed entropy. Concentration indices measure inequality in one variable over the distribution of. The theil index measures what is called redundancy in information theory. You may want to check out more software, such as soccer stats tracker. Entropy ge class, which includes the two theil indices and the coefficient of variation. Decompose theil index for data including zero values no incomeearnings. Either theils first, or t, index or theils second, or l, index decomposition can be requested. Otherwise, if you wanted one of his other parameters, then ignore this.
This includes the theil ge 1 and mean log deviation ge 0 indices. I am not principally an econometrician, but i know theil invented more than one parameter. I have a question regarding the theils index, i hope you could give any guidance. Hello, i want to decompose the overall inequality measured by theil index into between and withingroup inequality. This is similar to calculating the gini coefficient for wage separately for each combination of team and year. The impact of social speding over indicators of inequality and poverty in the brazilian states in the period 20042009.
Users of any of the software, ideas, data, or other materials published in the stb or the supporting files understand that such. To install the package of spatial analysis tools, type search spatgsa in the command window morans i is a measure of spatial autocorrelationhow related the values of a variable are based on the locations where they were measured. Stata 11 stata is a suite of applications used for data analysis, data management, and graphics. This module should be installed from within stata by typing ssc install index. It has also been called sens slope estimator, slope selection, the single median method, the kendall robust linefit method, and the kendall theil robust line.
In nonparametric statistics, the theil sen estimator is a method for robustly fitting a line to sample points in the plane simple linear regression by choosing the median of the slopes of all lines through pairs of points. Stata march 1999 technical stb48 bulletin stata press. The contents of the supporting files programs, datasets, and help files may. Hi borge, try findit ineqdeco after installing the ado file, read the help file. The stata journal malmquist productivity index using dea. Decomposition of theil index into within and between components.
Folks, im looking to measure both within and between country inequality. For each member of the family of generalised entropy inequality indices. Conducting data envelopment analysis in stata youtube. How do we decompose the inequality theil index using the command ineqdeco. Hi all, i am trying to do theil decomposition using the stata module ineqdeco, but. The theil index is a measure of the redundancy of income or. Also ensure you have the latest versions of the programs. The theil index is a statistic primarily used to measure economic inequality and other economic phenomena, though it has also been used to measure racial.
However, kent state faculty, staff, and current students can purchase s. To download the product you want for free, you should use the link provided below and proceed to the developers website, as this is the only legal source to get stata. Indice info iii ringraziamenti ix lista delle modi. I tried to decompose the income by race and strata. You will see that the theil index corresponds to ge1 in. In the madeup example below inspired by carlos post i use the userwritten ineqdeco command to calculate gini coefficients for price in the auto dataset, separate for each combination of foreigndomestic and reputation1 to 5. You will see that the theil index corresponds to ge1 in ineqdecos parlance. Statistical software components from boston college department of economics.
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