In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

This economist cautioned against moving past equilibrium models in his address to the London Club, entitled "Economics and Knowledge," and he followed a similar theme in his "The Use of Knowledge in Society. " This economist attacked another economist's work in his "The Non Sequitur of the Dependence Effect," and he was attacked in return by Keynes for his work Prices and Production. He claimed "not to be a (*) conservative" in the post-script to one of his works, and in his best known work, this economist claimed that socialist ideals ultimately lead to the detriment of all. For ten points, identify this economist who defended laissez-faire policies in his work The Road to Serfdom.
Social Science