Tobin taxes?
So the Green’s want a Tobin tax do they (ht Frog Blog and Stephen). Ok, so I’m hoping they aren’t justifying it on externality grounds – this leaves us with the conclusion that they must believe that it is the most efficient means available to make a certain level of government income.
They do seem to follow this point of view when they quote from a Guardian article:
Set at a lower level it would raise considerable sums of money. If a levy of just one basis point (one hundreth of 1%) was placed on all currency deals, governments would find themselves with an additional $70bn a year. At a time when they are chucking vast amounts of taxpayers’ money at the banks, that would be a nice little earner, and might help assuage the concerns that the public are going to pay for the folly of financiers.
I find it interesting that they see the money appearing out of thin air – if $70bn of tax is raised, it must come from some value somewhere. This is the same issue I have with people who like the financial transactions tax (furthermore, the assumption that capital/trade flows would not change when you tax them – even a little bit, is silly, as a result this over-estimates the associated revenue).