* This is my article in BusinessWorld last February 09, 2016.

There are two ways to exaggerate and sensationalize national or global income inequality. One is to compare the wealth of the top 10 or top 50 richest individuals and families per country using Forbes’ Billionaires data as numerator, with the gross domestic product (GDP) size of that country as denominator. The other is to use country wealth using household balance sheet (HBS) for one year as denominator.
(A)
Sum of wealth of top 10 (or 50) richest individuals in a country
———————————————————————— = inequality share
Gross domestic product (GDP) of a country, latest year
And
(B)
Sum of wealth of top 10 (or 50) richest individuals in a country
————————————————————————- = inequality share
Estimated country wealth using household balance sheet (HBS)
Both computations are using wrong mathematics. Why?
Simple, the numerator is cumulative wealth or wealth accumulated over a…
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