Thursday, October 13, 2011

Markets Can Be Very, Very Wrong

Krugman from a couple of weeks ago, Markets Can Be Very, Very Wrong "What it says, instead, is that consumers are paying much too low a price for coal-generated electricity, because the price they pay does not take account of the very large external costs associated with generation. If consumers did have to pay the full cost, they would use much less electricity from coal — maybe none, but that would depend on the alternatives.

At one level, this is all textbook economics. Externalities like pollution are one of the classic forms of market failure, and Econ 101 says that this failure should be remedied through pollution taxes or tradable emissions permits that get the price right. What Muller et al are doing is putting numbers to this basic proposition — and the numbers turn out to be big. So if you really believed in the logic of free markets, you’d be all in favor of pollution taxes, right?"

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