The behavior of the economy as a whole, at the aggregate, macro-level, is built up from the individual equations at the micro-level. - Paul Ormerod

Despite the high salaries involved, employing economists is a cost-effective way for banks, and stockbrokers to secure exposure in the media.

The study of human societies and economics is of great importance, and it is not the purpose of the book to suggest otherwise. Rather it is to argue that conventional economics offers a very misleading view of how the world actually operates, and that it needs to be replaced.

Keynes tried to show that market economies could settle in equilibrium states in which the labour market did not clear, and in which the level of unemployment was high. He believed that this was due to a particular example of market failure, developed in his concept of effective demand.