help for abg

The Alpha-Beta-Gamma Method of Distributional Analysis: Intensity and Shape of Inequality

Syntax

abg depvar [indepvars]
[if exp] [in range] [weight]
, [
gen(string) ]

Description

abg estimates Alpha-Beta-Gamma coefficients and standard-errors
of Distributional Analysis (see these coefficients with return list )
of a depvar variable (income or wealth values for instance).
The reference WP is stored here:

http://www.lisdatacenter.org/wps/liswps/609.pdf

The command abg proposes the computation of the empirical ISO values
for the 19 vingtiles of the distribution stored in 19 scalars, and the estimated values
stored in 19 ISA scalars.
In a generated variable, it stores the ISO values for each individual.

abg comes along with a logitrank command that computes for each individual her logit-rank position.

Options

gen(new_var) must be precised by the user.

example

use http://www.louischauvel.org/psid9707.dta , clear

logitrank eq [fw= wgt] if ye==1997, gen(lr97)

abg eq [fw= wgt] if ye==1997, gen(iso97)

return list

logitrank eq [fw= wgt] if ye==2007, gen(lr07)

abg eq [fw= wgt] if ye==2007, gen(iso07)

return list

sort lr97

two (sca iso07 lr07 if abs(lr07)<5 ) (li iso97 lr97 if abs(lr97)<5 ) , legend(off)

References

Louis Chauvel, forthcoming, The Intensity and Shape of Inequality: The ABG Method of Distributional Analysis, Review of Income and Wealth.

see http://www.lisdatacenter.org/wps/liswps/609.pdf .

Author

Louis Chauvel PrDr
University of Luxembourg
During the completion of the v1.0
chauvel@louischauvel.org