Gavin Casey, chief executive of London Stock Exchange, is to demand an urgent meeting with Gordon Brown after growing evidence of blue chip companies listing in New York and avoiding UK stamp duty on share trading, reports The Daily Telegraph.

The latest is Lloyds-TSB, which has signed up Salomon Smith Barney to arrange a listing on the New York Stock Exchange. Prudential is also preparing to make the move, where it will join BP and HSBC, which listed in New York last year. Others joining the transatlantic flow include ARM Holdings, which has joined the Nasdaq exchange in the US, as have Reuters and Vodaphone.