What is a good model in economics? “The Kids” asked a dozen economists in the halls of the Mount Washington Hotel in Bretton Woods, and we invite you to watch what they said.
Good models are those that pass the test of time, says Philippe Aghion. Brad DeLong presents what has come to be called Friedman’s “F-Twist”: assumptions don’t matter – a good model is one that predicts well. Wrong, says Anatole Kaletsky, economists ought to model the whole range of human behavior, and doing so requires re-examining the very assumptions on which our models rest. And to George Akerlof, a good model applies to the specific question asked; it corresponds to the problem at hand.
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