Q: 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.
After writing his Treatise on Probability, he contributed to the Cambridge cash-balance theory of money with his publication Tract on Monetary Reform, and responded to the Treaty of Versailles in his The Economic Consequences of the Peace. However, it was the work of Richard Kahn that resulted in his major idea, namely the multiplier effect arising from governmental spending. For ten points, name this British economist and author of The General Theory of Employment, Interest, and Money.
A:
Social Science