(Channel4) - As UK politicians wine and dine a gold-plated guest list from the world of business at a pre-Olympic trade summit, Channel 4 News asks how likely it is to boost the British economy by £1bn. The final bill for staging international sport's most prestigious event is already set to hit £11bn, and following recent news of the worse than expected GDP figures there there is no doubt that the UK economy would benefit from an increase in inward investment.