At his blog Tim Harford has been writing on The truth about inequality. He says,
How serious a problem is inequality? And if it is serious, what can be done about it?
Myths abound. Many people seem to believe that Thomas Piketty’s Capital in the Twenty-First Century showed that wealth inequality is at an all-time high; instead, his data show that wealth inequality has risen only slowly since the 1970s, after falling during the 20th century. In Europe we are thankfully nowhere near the wealth inequality of the past.
Another common belief is that the richest 1 per cent of the world’s population own half the world’s wealth (almost true) and that their share is inexorably increasing (not true). The richest 1 per cent had 48.2 per cent of the world’s wealth in the year 2014, according to widely cited research from Credit Suisse, but that share has fallen and risen over the past 15 years. It is lower now than in 2000 and 2001.
Neither is it clear that global inequality is rising. Average incomes in China and India have risen much faster than those in richer countries; this is a powerful push towards equality of income. But inequality within many countries is rising. Research from Branko Milanović, author of The Haves and the Have-Nots, suggests that the two forces have tended to balance out roughly over the past generation.
One final myth is that inequality in the UK has risen since the financial crisis. In fact, it has fallen quite sharply. “Inequality remains significantly lower than in 2007-08,” said the Institute for Fiscal Studies last summer. That conclusion is based on data through April 2013. The IFS did add, though, that “there is good reason to think that the falls in income inequality since 2007-08 are currently being reversed.”
Harford then makes an important point about the need to take income redistribution into account when looking at inequality.
The UK already redistributes income extensively. As Gabriel Zucman of the London School of Economics points out, the UK’s richest fifth had 15 times the pre-tax income of the poorest fifth, but after taxes and benefits they had just four times as much.
I would think that if we were to look at consumption, which to me seems the important thing, the gap between “rich” and “poor” would decrease even more.
Of course there are those who would have the government redistribute even more but my previous post on To eat the rich, first they must stay still should act as a warning as to what could happen when the top income rates are raised.
I would suggest there is one addition question Harford did not ask: Is inequality a problem at all? Only after having answered that question yes should we ask how big the problem is and what can we do about it.