Thomas Piketty worries that levels of private wealth are high, rising and unequally distributed, and public wealth is low. This voice from the left says that public policy is needed to curb this growing inequality. At the same time, voices from the right worry about the still very high levels of debt in the global economy and in individual countries; we are borrowing our way to ruin. But aren’t these things the two sides of the same balance sheet? Is not debt high because wealth is high?
Piketty measures private wealth as a multiple of GDP. We are at present around five times GDP in the big Western economies. His summary of the historical time series suggests that this is high and in line with previous historic peaks, such as the late nineteenth century when private wealth reached five to six times. The European catastrophe of the first half of the twentieth century saw it fall sharply. His concern is that since returns on wealth (or investment returns) are larger than GDP growth, so private wealth as a multiple of GDP will grow. And, what’s more, it will be concentrated in fewer hands.
Yet, every quarter, I look at tables of the total stock of debt of certain countries compared to GDP. Generally, levels have fallen since the crisis but, compared to the long term, are higher than they have ever been. Those of a conservative economic disposition fear that these remain unsustainable levels of debt, which, one day, will ignite and blow up the global economy. Piketty worries we are getting too rich, conservatives worry that we shall soon be poor.
Putting aside who is right and which is the most worrisome, they are both the same problem. Gross levels of wealth in the global economy have risen enormously – relative peace, technology based productivity gains, end of command economies. Debt levels have risen commensurately. But the net wealth position has also risen. We have a great deal of wealth, we have a lot of debt but the net position is, for the moment, good.
