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... Gini index is usually computed from the sequence Ni = Di/Pi re-ordered in monotonically increasing values from lowest to largest value. The cumulative values of Di and Pi are progressively added up, ranking the population in the same order, then plotted in the form of a graph, as in Figs Table 1 compiles the unevenness of spatial spread of N over all countries using our formula within a continental region or the world as a whole on 31-12-2020 and 27-10-2021. ...Context 2
... one defines an unevenness index as II = 1 -η, then like the Gini index, II varies from 0 (perfect equality; the curve coincides with the line of equality (LoE)) to a value of 1 (perfect inequality). We see in Table 1 and from Figs. 2 and 3 that Covid had spread much more uniformly in Europe and the Americas and very unevenly in Asia and Africa. This is both a reflection on the variation in various factors across the nations in that cohort, and particularly of the poor connectivity to remote regions. ...Context 3
... confounding factor is that of gross undercounting, but this is difficult to quantify. We also see from Table 1 that with progress in time, the spatial spread has become more even in the continents with high values of N. This does not bode well for Africa or Asia where it appears that there are vast swathes of the continent where Covid-19 has not swept through. ...Similar publications
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