By Martin Wolf

Last week’s column on the views of New York University’s Nouriel Roubini (February 20) evoked sharply contrasting responses: optimists argued he was ludicrously pessimistic; pessimists insisted he was ridiculously optimistic. I am closer to the optimists: the analysis suggested a highly plausible worst case scenario, not the single most likely outcome.

Those who believe even Prof Roubini’s scenario too optimistic ignore an inconvenient truth: the financial system is a subsidiary of the state. A creditworthy government can and will mount a rescue. That is both the advantage – and the drawback – of contemporary financial capitalism.

In an introductory chapter to the newest edition of the late Charles Kindleberger’s classic work on financial crises, Robert Aliber of the University of Chicago Graduate School of Business argues that “the years since the early 1970s are unprecedented in terms of the volatility in the prices of commodities, currencies, real estate and stocks, and the frequency and severity of financial crises”*. We are seeing in the US the latest such crisis.