“Economics is harder than physics; luckily it is not quite as hard as sociology. Why is economics such a hard subject? Part of the answer has to do with complexity. The economy cannot be put in a box. […] Another reason economics is hard is that the critical sociologist is right: it involves human beings, who do not behave in simple, mechanical ways.”

—  Paul Krugman , book Peddling Prosperity

Preface
Peddling Prosperity (1994)

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Paul Krugman 106
American economist 1953

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