acid (version 1.1)

sgini: Single-parameter Gini Coefficient

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.

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