in 2017, the global economy has created more credit relative to GDP than that at the beginning of 2008’s disaster. In the U.S., credit of $65 trillion is roughly 350% of annual GDP and the ratio is rising. In China, the ratio has more than doubled in the past decade to nearly 300%. Since 2007, China has added $24 trillion worth of debt to its collective balance sheet. Over the same period, the U.S. and Europe only added $12 trillion each. Capitalism, with its adopted fractional reserve banking system, depends on credit expansion and the printing of additional reserves by central banks, which in turn are re-lent by private banks to create pizza stores, cell phones and a myriad of other products and business enterprises. But the credit creation has limits and the cost of credit (interest rates) must be carefully monitored so that borrowers (think subprime) can pay back the monthly servicing costs. If rates are too high (and credit as a % of GDP too high as well), then potential Lehman black swans can occur. On the other hand, if rates are too low (and credit as a % of GDP declines), then the system breaks down, as savers, pension funds and insurance companies become unable to earn a rate of return high enough to match and service their liabilities.
U.S. Total Credit Market Debt as a Percent of GDP
Central banks attempt to walk this fine line – generating mild credit growth that matches nominal GDP growth – and keeping the cost of the credit at a yield that is not too high, nor too low, but just right. Janet Yellen is a modern day Goldilocks.
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