One way to really get business leaders backing an FTT would be to propose to use it to replace some of the incredibly inefficient tax systems such as corporation tax. With financial transactions in the Eurozone running at €1.6 quadrillion a year (http://simonthorpesideas.blogspot.fr/2013/08/eurozone-transactions-from… ), a flat rate FTT at a very modest level would allow corporation tax to be abolished within the FTT. Yes, the High Frequency Traders might move elsewhere, but the actors in the real economy i.e. the companies that actually make things that people want to buy and provide services that are useful, would move into the FTT zone. There are billions currently sitting on company accounts in taxhavens that would immediately relocate to the first country or region where Corporation taxes were replaced by an FTT. Yes, the companies would have to pay 0.1% or what ever to relocate, but that is nothing compared with the 20-30% corporation tax that would otherwise have to be paid.