The principle of redistribution in all the provinces is not one man, one vote. But how far from equal population or equal number of voters for all constituencies do the provinces deviate?
If redistribution were based only on the population in the provinces, one would need a measure which would indicate the degree of inequality. There are several measures available. Hayward R. Alker, Jr., and Bruce N. Russett, after comparing different measures of inequality, concluded that the Gini index was an attractive way of summarizing the important parts of an accurate cumulative distribution and that it was sensitive to inequalities present in all parts of a value distribution. Because of these findings, it was decided that the Gini index would be used as a measure of inequality for provincial representation.