a growth incidence curve presents the growth in income of each percentile over a given period the shape of the curve indicates the nature of propoor growth a downwardsloping curve indicates that the poor benefit disproportionally more from growth which is therefore propoor while an upward curve indicates that the betteroff do as gini coefficients merely quantify the rise or fall in inequality using a scalar measure they thus tell the policy maker much less than a growth incidence curve about which part of the income distribution changed and affected inequality