ssc install ineqdeco
ineqdeco var_name

use "***.dta",clear;
gen mi=inc/hhs; /*inc为家庭纯收入，hhs为家庭规模*/
sort mi;
egen thh=sum(hhs)
gen pi=hhs/thh;
egen tinc=sum(inc);
gen wi=inc/tinc;
gen qi=sum(wi);
gen gini1=pi*(2qi-wi);
egen gini2=sum(gini1);
gen G=1-gini2;

哪个的公式啊？