Economics: Repent at Leisure

This article contributes to the discussion by looking at total debt instead of the more discussed public (government) debt. It is a strong warning to get indebtedness under control even though it does not consider the larger future obligations such as Medicare.

Debt increased at every level, from consumers to companies to banks to whole countries. The effect varied from country to country, but a survey by the McKinsey Global Institute found that average total debt (private and public sector combined) in ten mature economies rose from 200% of GDP in 1995 to 300% in 2008 .... There were even more startling rises in Iceland and Ireland, where debt-to-GDP ratios reached 1,200% and 700% respectively. The burdens proved too much for those two countries, plunging them into financial crisis. [Emphasis added].

This is particularly troublesome if the economy slips into deflation, as happened globally in the 1930s and in Japan in the 1990s. Debt levels are fixed in nominal terms whereas asset prices can go up or down. So falling prices create a spiral in which assets are sold off to repay debts, triggering further price falls and further sales. Irving Fisher, an economist who worked in the first half of the 20th century, called this the debt deflation trap.

Another reason why debt matters is to do with the role of banks in the economy. By their nature, banks borrow short (from depositors or the wholesale markets) and lend long. The business depends on confidence; no bank can survive if its depositors (or its wholesale lenders) all want their money back at once. If banks struggle to meet their own debts, they have no choice but to reduce their lending. If this happens on a large scale, as it did in the 1930s, the ripple effect for the economy as a whole can be devastating.

Both of these effects were seen in the debt crisis of 2007-08. Falling property prices caused defaults and a liquidity crisis in the banking system so severe that the authorities feared the cash machines would stop working. Hence the unprecedented largesse of the bank bail-out.

Hyman Minsky, an American economist who has become more fashionable since his death in 1996, argued that these debt crises were both inherent in the capitalist system and cyclical. Prosperous times encourage individuals and companies to take on more risk, meaning more debt. Initially such speculation is successful and encourages others to follow suit; eventually credit is extended to those who will be able to repay the debt only if asset prices keep rising (a succinct description of the subprime-lending boom). In the end the pyramid collapses.

In the aftermath of the latest collapse it is clear that the distinction between debt in the private and public sector has become blurred. If the private sector suffers, the public sector may be forced to step in and assume, or guarantee, the debt, as happened in 2008. Otherwise the economy may suffer a deep recession which will cut the tax revenues governments need to service their own debt.

For much more, see Repent at Leisure by Philip Coggan, June 24, 2010, at The Economist.

And from World Debt by Buttonwood, June 24, 2010, at The Economist is:

We have also updated a sovereign debt table we published in February, ranking countries in terms of their primary budget balance, debt-to-GDP ratios plus the relationship between the yield on their debt and economic growth (if the former is larger than the latter, the debt burden is getting steadily worse). Spain has now taken over from Greece as the country in the worst position. Here's the table: