by Tweedledum and Tweedledee Economics Krugman’s entire essay is about two groups, both deeply entrenched at (what they believe to be) the top of academic economics. Both are deeply preoccupied with their status and with a struggle for influence and for academic power and prestige — against the other group. Krugman calls them “Saltwater” and “Freshwater” economists; they tend to call themselves “New Classicals” and the “New Keynesians” … The two groups share a common perspective, a preference for thinking along similar lines. Krugman describes this well, as a “desire for an all-encompassing, intellectually elegant approach that also gave economists a chance to show off their mathematical prowess.” Exactly so. It was in part about elegance — and in part
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Lars Pålsson Syll considers the following as important: Economics
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Tweedledum and Tweedledee Economics
Krugman’s entire essay is about two groups, both deeply entrenched at (what
they believe to be) the top of academic economics. Both are deeply preoccupied
with their status and with a struggle for influence and for academic power and
prestige — against the other group. Krugman calls them “Saltwater” and “Freshwater” economists; they tend to call themselves “New Classicals” and the “New Keynesians” …The two groups share a common perspective, a preference for thinking along similar lines. Krugman describes this well, as a “desire for an all-encompassing, intellectually elegant approach that also gave economists a chance to show off their mathematical prowess.” Exactly so. It was in part about elegance — and in part about showing off. It was not about the economy …
Professor Krugman contends that Tweedledum and Tweedledee “mistook beauty for truth.” The beauty in question was the “vision of capitalism as a perfect or nearly perfect system.” To be sure, the accusation that a scientist — let alone an entire science — was seduced by beauty over truth is fairly damaging. But it’s worth asking, what exactly was beautiful about this idea? Krugman doesn’t quite say. He does note that the mathematics used to describe the alleged perfection was “impressive-looking” — ”gussied up” as he says, “with fancy equations.” It’s a telling choice of words. “Impressive-looking”? “Gussied up”? These are not terms normally used to describe the Venus de Milo.