Almost 30 nations have some form of a financial transaction tax and the U.S. had a similar tax from 1914 until 1966. The United Kingdom has had a tax on stock trades for decades – the same rate proposed in HR 6411 – and their volume of trading has grown robustly. Supporters of a form of financial transactions tax include business leaders such as Microsoft founder Bill Gates, Dallas Mavericks’ owner Mark Cuban, and Berkshire Hathaway chairman and CEO Warren Buffet.