The key to understanding the impact of taxes on the economy is to focus on tax rates, particularly marginal tax rates, defined as the tax rate that applies to the last dollar earned.

FORBES: The Way The World - And Free-Market Economics - Works

Chairman of St George's Park, David Sheepshanks, said the focus for elite players will be on making marginal but vital improvements, an approach which has succeeded for other sporting bodies such as British Cycling.

BBC: Duke and Duchess open FA's new centre of excellence