The main contribution to economics that was developed by Keynes came with the publishing of his book, “The General Theory of Employment, Interest and Money” in 1936. The book contained a new economic outlook of the government and money, and from the roots of the book, came the introduction of macroeconomics. According to the School of Thought (2011), the development of Macroeconomics can be attributed to the works of Keynes, and the controversial arguments that he had with fellow economists helped the development of economics. The other contribution that Keynes had on the world is probably the influence that he had on other Keynesian economists like Joan Robinson, with whom he belonged to a reading group. The influence that Keynes had on his protégées can be seen in later works developed by these economists.