Somerecentposts by Rauparaha at The Visible Hand in Economics have got me thinking about the problems of subjectivism and value pluralism in welfare economics. Rauparaha is using widely-accepted methodology and taking the conventional view on this, so my criticisms are not directed at him particularly, but at the general approach taken by most welfare economists. He says, for example:
It’s great to see the government taking economic incentives seriously. Their latest initiative considers imposing a 5c/bag tariff on plastic bags in supermarkets. The idea is that the market price for the bags doesn’t take into account the full environmental cost of non-biodegradable bags. By taxing the bags the government can adjust the market price of the bags to match their social cost.
It seems to me that the idea that government can use Pigouvian taxes and subsidies to internalise externalities stems from a combination of technocratic…
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Utopia, you are standing in it! 
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