Instructions: 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.
Input: His dissertation stemmed from the work of Frank Knight and studied the role of expectations in price formation. A few years later, he made the distinction between ex ante and ex post savings and investment contained in his Monetary Equilibrium, but he later shifted focus to applied economics and poverty. FTP, name this member of the Stockholm school and author of Beyond the Welfare State and An American Dilemma: The Negro Problem and Modern Democracy who shared the 1974 Nobel Prize.
Output:
Social Science