Welcome to the Mixtape with Scott! We are getting closer to the hundredth episode! This is our 91st interview if I include Adam Smith (played by ChatGPT-4), which I absolutely will be counting. And the guest is someone I have admired for a long time — Martin Gaynor, or “Marty”. Marty is the J. Barone University Professor of Economics and Public Policy at Carnegie Mellon both in the economics department and their policy school, Heinz College. But he is also special adviser to Jonathan Kanter, assistant attorney general for the Antitrust Division at the federal Department of Justice, and it is not the first time that Marty has served in government as a public servant. He is also a former Director of the Bureau of Economics at the U.S. Federal Trade Commission. You can read some about his new position in the Department of Justice here. Marty works on the supply side of health, you might say, as opposed to the demand side. He studies markets and concentration, hospitals, firm competition, pricing — not just our health behaviors, but also the supply of healthcare through a mixture of market and non-market processes. If you go through his vita, you can see he’s racked up a lot of awards and publications over the years. There are many things you can say about Marty, and after this interview, two came to mind — resilient and kind. It was actually almost not the case that he would become as successful as an economist as he became, as he will share in this interview. He struggled initially to get a tenure track job, and even left academia briefly as a result. He is remarkably upbeat and realistic about the good fortune that he has had, though. And as you will see in this interview, it is very clear that he is a genuinely kind and warm hearted person. Marty also is a survivor in a more literal sense. He was nearly murdered in the antisemitic terrorist attack at the Tree of Life synagogue in Pittsburgh. That is his story to tell in this interview, not mine, but I will leave it at that. All of our stories matter. No matter who is listening or reading this, their personal story matters, and I hope that this interview is interesting and that you enjoy getting to know Marty a bit better. Thank you for all your support! Scott's Substack is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber. Get full access to Scott's Substack at causalinf.substack.com/subscribe