The surge in West Ham's confidence was instant, with Wigan keeper Ali Al-Habsi saving twice in swift succession from Stanislas' rising effort and Piquionne's header from only six yards out.

BBC: West Ham 3-1 Wigan

Because it based on ideas, not stocks of goods, and because it is dependent on confidence in the future, it can vanish in an instant.

FORBES: The Wonders of Wealth, the Path Out of Poverty