The Volatility Machine: Emerging Economies and the Threat of Financial Collapse

Pettis, who worked in emerging market debt before becoming an academic in Beijing, argues that emerging market crises are caused by the structure of national balance sheets rather than by policy errors or external shocks alone.

His analytical framework applies corporate finance to countries. A country, like a company, has assets and liabilities, and the relationship between them determines whether an external shock is absorbed or amplified. He calls a balance sheet inverted when its liabilities behave in ways that worsen exactly when its assets do: short-term foreign currency debt that must be refinanced when access closes, floating rate debt whose cost rises when the country is in trouble, and dollar-denominated obligations against local currency revenue. A country with such a structure converts a moderate shock into a crisis, while a country with equity-like or long-dated local currency liabilities absorbs the same shock.

He applies this historically, arguing that emerging market crises since the nineteenth century have followed liquidity conditions in developed markets rather than conditions in the emerging countries themselves. Capital flows out when developed market liquidity is abundant and returns home when it contracts, and the timing of crises across otherwise unrelated countries reflects this common cause.

His practical recommendation is that governments should manage national liability structures deliberately, matching the behaviour of liabilities to that of the economy's assets and revenue, which means preferring long-dated local currency and equity-like financing even at higher nominal cost.

The framework anticipated much of the later official emphasis on currency mismatch and on the global financial cycle, and Pettis has applied it consistently since. The book predates the growth of local currency emerging market debt markets, which addressed part of the problem, and its historical claims about capital flow cycles are argued rather than tested econometrically.