Russ Roberts is a fellow at Stanford University's Hoover Institution and the host of the podcast, EconTalk. He's also starred in two rap videos about John Maynard Keynes and F.A. Hayek, and is the author of several books, including most recently, How Adam Smith Can Change Your Life: An Unexpected Guide to Human Nature and Happiness.  In this interview, Chuck Marohn and Russ Roberts discuss the political appeal of infrastructure spending vs. the economics perspective. They also talk about how to ensure a good return on investment and how to focus on smaller-scale projects. This interview is part of our ongoing conversation on federal infrastructure spending.