As probably many of you know, there is a cloud hanging over the future of the US and many other countries, the cloud of wealth concentration. There is nothing in life that will not be affected by this phenomenon. It obviously affects our allocation of resources and it will have tremendous influence on who gets what. It would affect the relations between the social classes and could lead to social unrest if we allow the fissure between the haves and have nots to increase. The following is only one part of an excellent article that speaks to this issue.
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Growing inequality is one of the biggest social, economic and political challenges of our time. But it is not inevitable, says Zanny Minton Beddoes
Oct 13th 2012 | from the print edition of The Economist
A bit over a century later, America’s second Gilded Age has nothing quite like the Vanderbilt extravaganza. Bill Gates’s home near Seattle is full of high-tech gizmos, but, at 66,000 square feet, it is a mere 30 times bigger than the average modern American home. Disparities in wealth are less visible in Americans’ everyday lives today than they were a century ago. Even poor people have televisions, air conditioners and cars.
But appearances deceive. The democratisation of living standards has masked a dramatic concentration of incomes over the past 30 years, on a scale that matches, or even exceeds, the first Gilded Age. Including capital gains, the share of national income going to the richest 1% of Americans has doubled since 1980, from 10% to 20%, roughly where it was a century ago. Even more striking, the share going to the top 0.01%—some 16,000 families with an average income of $24m—has quadrupled, from just over 1% to almost 5%. That is a bigger slice of the national pie than the top 0.01% received 100 years ago.
This is an extraordinary development, and it is not confined to America. Many countries, including Britain, Canada, China, India and even egalitarian Sweden, have seen a rise in the share of national income taken by the top 1%. The numbers of the ultra-wealthy have soared around the globe. According to Forbes magazine’s rich list, America has some 421 billionaires, Russia 96, China 95 and India 48. The world’s richest man is a Mexican (Carlos Slim, worth some $69 billion). The world’s largest new house belongs to an Indian. Mukesh Ambani’s 27-storey skyscraper in Mumbai occupies 400,000 square feet, making it 1,300 times bigger than the average shack in the slums that surround it.
The concentration of wealth at the very top is part of a much broader rise in disparities all along the income distribution. The best-known way of measuring inequality is the Gini coefficient, named after an Italian statistician called Corrado Gini. It aggregates the gaps between people’s incomes into a single measure. If everyone in a group has the same income, the Gini coefficient is 0; if all income goes to one person, it is 1.
The level of inequality differs widely around the world. Emerging economies are more unequal than rich ones. Scandinavian countries have the smallest income disparities, with a Gini coefficient for disposable income of around 0.25. At the other end of the spectrum the world’s most unequal, such as South Africa, register Ginis of around 0.6. (Because of the way the scale is constructed, a modest-sounding difference in the Gini ratio implies a big difference in inequality.)