The basic income may, but need not, be funded in a specific, ear-marked way. If it is not, it is simply funded along with all other government expenditures out of a common pool of revenues from a variety of sources. Among those who advocated ear-marked funding, most are thinking of a specific tax. Some want it funded out of a land tax or a tax on natural resources (from Thomas Paine (1796) to Raymond Crotty (1987), Marc Davidson (1995) or James Robertson (1999) for example). Others prefer a specific levy on a very broadly defined income base (for example, Pelzer 1998, 1999) or a massively expanded value-added tax (for example, Duchatelet 1992, 1998). And some of those who are thinking of a worldwide basic income stress the potential of new tax instruments such as “Tobin taxes” on speculative capital movements (see Bresson 1999) or “bit taxes” on transfers of information (see Soete & Kamp 1996).