GINIDOMγt=GINIFUN(HHINCR,S,HHPOPR,S)*GINIDomRIγt−1
where
<math>GINIDomRI^{t-1}_{\gamma}=\frac{GINIDOM^{t-1}_{\gamma}}{GINIFUN(HHINC^{{\gamma}-1}_{R,S},HHPOP^{t-1}_{R,S})}