sgini: Single-parameter Gini Coefficient

In acid: Analysing Conditional Income Distributions

Description

This function computes the Single-parameter Gini coefficient (a.k.a. generalised Gini coefficient or extended Gini coefficient) for a vector of observations.

Usage

sgini(x, nu = 2, w = NULL)

Arguments

x	a vector of observations.
nu	a scalar entailing the parameter that tunes the degree of the policy maker's aversion to inequality. See Yaari, 1988 for details.
w	a vector of weights.

Value

Gini	the Gini coefficient for the sample.
bcGini	the bias-corrected Gini coefficient for the sample.

Author(s)

Alexander Sohn

References

van Kerm, P. (2009): sgini - Generalized Gini and Concentration coefficients (with factor decomposition) in Stata', CEPS/INSTEAD, Differdange, Luxembourg.

Yaari, M.E. (1988): A Controversal Proposal Concerning Inequality Measurement, Journal of Economic Theory, Vol. 44, pp. 381-397.

Examples

set.seed(123)
x <- rnorm(100,10,1)
gini(x)$Gini
sgini(x,nu=2)$Gini

Example output

Loading required package: gamlss
Loading required package: splines
Loading required package: gamlss.data

Attaching package: 'gamlss.data'

The following object is masked from 'package:datasets':

    sleep

Loading required package: gamlss.dist
Loading required package: MASS
Loading required package: nlme
Loading required package: parallel
 **********   GAMLSS Version 5.1-3  ********** 
For more on GAMLSS look at http://www.gamlss.org/
Type gamlssNews() to see new features/changes/bug fixes.

Loading required package: Hmisc
Loading required package: lattice
Loading required package: survival
Loading required package: Formula
Loading required package: ggplot2

Attaching package: 'Hmisc'

The following objects are masked from 'package:base':

    format.pval, units

           [,1]
[1,] 0.05080455
[1] 0.05080455

acid documentation built on May 1, 2019, 10:14 p.m.