Here is what Paul Krugman put at the top of his list of Paul Samuleson's contributions to economics:
Revealed preference: There was a revolution in consumer theory in the 1930s, as economists realized that there was much more to consumer choice than diminishing marginal utility. But it was Samuelson who taught us how much can be inferred from the simple proposition that what people choose must be something they prefer to something else they could have afforded but don’t choose.
Over the past few days, there have been any number of politicians, pundits and pollsters who have scolded the Conservative government for the position it has taken in Copenhagen. But what did they expect? When Canadians were offered a choice between a climate change policy that offered the possibility of personal inconvenience and the siren call of the Axis of Climate Change Dimwits, a clear majority of voters chose parties who promised a climate change policy that would cost them nothing.
Stephen Harper is carrying out the mandate we gave him. We bought all those 'Fossil of the Day' awards; we're going to have to own them.
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