The coming debt bust

CHINA was right to turn on the credit taps to prop up growth after the global financial crisis. It was wrong not to turn them off again. The country’s debt has increased just as quickly over the past two years as in the two years after the 2008 crunch. Its debt-to-GDP ratio has soared from 150% to nearly 260% over a decade, the kind of surge that is usually followed by a financial bust or an abrupt slowdown.

China will not be an exception to that rule. Problem loans have doubled in two years and, officially, are already 5.5% of banks’ total lending. The reality is grimmer. Roughly two-fifths of new debt is swallowed by interest on existing loans; in 2014, 16% of the 1,000 biggest Chinese firms owed more in interest than they earned before tax. China requires more and more credit to generate less and less growth: it now takes nearly four yuan of new borrowing to generate one yuan of additional GDP, up from just over one yuan of credit before the financial crisis. With the government’s connivance, debt levels can probably keep climbing for a while, perhaps even for a few more years. But not for ever.