Sir Martin Sorrell is the chief executive of WPP, the company he founded in 1986, which is now the world's largest group of advertising, marketing and communications companies.

Widely regarded as one of the most important figures in his field, he joined Kirsty Wark to share his thoughts on economic growth, how the government can reduce the deficit, and the England World Cup bid.

Broadcast on Tuesday 24 August 2010.