Should we use taxes to deter financial speculation? Yes, say top British officials, who oversee the City of London, one of the world’s two great banking centers. Other European governments agree — and they’re right. Unfortunately, United States officials — especially Timothy Geithner, the Treasury secretary — are dead set against the proposal. Let’s hope they reconsider: a financial transactions tax is an idea whose time has come.
The dispute began back in August, when Adair Turner, Britain’s top financial regulator, called for a tax on financial transactions as a way to discourage “socially useless” activities. Gordon Brown, the British prime minister, picked up on his proposal, which he presented at the Group of 20 meeting of leading economies this month.
Why is this a good idea? The Turner-Brown proposal is a modern version of an idea originally floated in 1972 by the late James Tobin, the Nobel-winning Yale economist. Tobin argued that currency speculation — money moving internationally to bet on fluctuations in exchange rates — was having a disruptive effect on the world economy. To reduce these disruptions, he called for a small tax on every exchange of currencies.
Such a tax would be a trivial expense for people engaged in foreign trade or long-term investment; but it would be a major disincentive for people trying to make a fast buck (or euro, or yen) by outguessing the markets over the course of a few days or weeks. It would, as Tobin said, “throw some sand in the well-greased wheels” of speculation.
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This would be a bad thing if financial hyperactivity were productive. But after the debacle of the past two years, there’s broad agreement — I’m tempted to say, agreement on the part of almost everyone not on the financial industry’s payroll — with Mr. Turner’s assertion that a lot of what Wall Street and the City do is “socially useless.” And a transactions tax could generate substantial revenue, helping alleviate fears about government deficits. What’s not to like?
More:
http://www.nytimes.com/2009/11/27/opinion/27krugman.html?_r=1Yet another example of sensible change
we could have believed in.