Consider the following extraordinary statistics about the performance of the world economy since 1980. World real gross domestic product grew by about 145 per cent from 1980 to 2007, or by an average of roughly 3.4 per cent a year.

The role of capitalism in creating wealth is seen in the sharp rise in Chinese and Indian incomes after they introduced market-based reforms (China in the late 1970s and India in 1991). Global health, as measured by life expectancy at different ages, has also risen rapidly, especially in lower-income countries.

Interventions by the US Treasury in financial markets have added to the uncertainty and slowed market responses that would help stabilise and recapitalise the system.