Contributor(s): Mary Morgan, Carl Packman, John van Reenen, Amy Mollett, Cheryl Brumley, Joel Suss | Mary Morgan, LSE Professor of History and Philosophy of Economics, speaks to us about her book: The World in the Model: How Economists Work and Think and how the once prose-heavy discipline founded by Adam Smith has been transformed by maths. Carl Packman, author of Loan Sharks: The Rise and Rise of Payday Lending, discusses the exponential growth of the payday lending industry in the UK. Director of LSE’s Centre for Economic Performance, Professor John van Reenen, thinks back to his early career and identifies the books shaped his thinking about the economic world. Presented by Amy Mollett. Produced by Cheryl Brumley. Music and sound came courtesy of the following users at freesound.org: wim (London underground train arriving 6 and 13), Foop (Edithouse); and The FreeMusicArchive.org: Dumbo Gets Mad (Radical Leap), Podington Bear (Dark Matter, Light in Branches, Pink Blossoms, Light Touch), Deltason (Groundloop). Published 17th July 2013.