Financial markets need to become less, not more, efficient.

It takes time and experience to absorb new technologies, so technologically backward producers need a period of protection from international competition during this period of learning. Such protection is costly, because the country is giving up the chance to import better and cheaper products. However, it is a price that has to be paid if it wants to develop advanced industries.

Culture changes with economic development.

Gore Vidal, the American writer, once described the American economic system as 'free enterprise for the poor and socialism for the rich'. Macroeconomic policy on the global scale is a bit like that. It is Keynesianism for the rich countries and monetarism for the poor.

Since the 1980s, we have given the rich a bigger slice of our pie in the belief that they would create more wealth, making the pie bigger than otherwise possible in the long run. The rich got the bigger slice of the pie all right, but they have actually reduced the pace at which the pie is growing.

The top 10 per cent of the US population appropriated 91 per cent of income growth between 1989 and 2006, while the top 1 per cent took 59 per cent.

Rational thinking is an important aspect of human nature, but we have imagination, we have ambition, we have irrational fear, we are swayed by other people, we get indoctrinated and we get influenced by advertising.