The 360 degree screen, measuring 60m (197ft) in circumference, will be visible for miles around the tower in Fitzrovia.

BBC: Alternative venues to cheer on England in the World Cup

Fitzrovia calculates that while the number of offshore equity funds has doubled since 1993, the size of the average fund is unchanged.

ECONOMIST: Mutual funds

Management fees and total expense ratio data provided by Fitzrovia International, Plc.

FORBES: Offshore Funds

Guy's Gartmore Capital Strategy Continental Europe fund charges total expenses of 1.59% annually, less than the 1.86% average for the 558 offshore European equity funds tracked by Fitzrovia International.

FORBES: Constellation manager

On average, fees quoted by British funds understate total actual costs by 15%, says Fitzrovia International, a small London-based fund-research outfit that has just compiled the first-ever analysis of such costs in Britain.

ECONOMIST: Aux armes, investisseurs