John Papola of Emergent Order talks with EconTalk host Russ Roberts about their collaboration creating rap videos based on the ideas of John Maynard Keynes and F. A. Hayek. Their first was "Fear the Boom and Bust" which was released January 25, 2010. This past week they released "Fight of the Century." The latest video discusses the overarching differences between the philosophies of Keynes and Hayek and their views on whether government spending promotes recovery from an economic downturn and whether it leads to prosperity. In this conversation, Papola and Roberts discuss some of the underlying ideas in the video--whether the military spending of World War II ended the Great Depression, the debate between Malthus and Say and their influence on Keynes and Hayek, and the fundamental differences between Keynes and Hayek in how economic prosperity is created.