Game Changer - the game theory podcast

In this episode, we discuss zero-sum games and zero-sum thinking with our guest, Nageeb Ali. We begin by looking at the broader picture of how zero-sum thinking has become increasingly prominent in today's public debate and how it relates to Akerlof's classic "lemons" problem.
Drawing on ideas from economics and game theory, Nageeb shares research connecting zero-sum thinking to questions in political economy and organizations. He explains how zero-sum thinking can emerge even when policies are not objectively zero-sum: when individuals have different information and different interests, support for a policy by others may itself become a signal that the policy is bad for you.
Later in the episode, Nageeb discusses how one-sided asymmetric information in organisational settings can lead to adverse selection and how these dynamics relate to zero-sum thinking more broadly.
 
Nageeb Ali is a Professor of Economics at Penn State University.

In this episode, we speak with Thilo Klein about daycare allocation in Germany – a problem that is still mostly run by uncoordinated offers, even though it is well understood in matching theory. The gap isn't theory; it's the missing layer that turns academic mechanisms into systems municipalities can actually run. Thilo Klein traces how that layer is now being built – through years of research, an open-source experiment that taught hard lessons, and a spin-out. A conversation about market design where it lands.
 
Thilo Klein is Professor of Quantitative Economics at Pforzheim Business School and a senior researcher at ZEW – Leibniz Centre for European Economic Research. He is also the co-founder of MatchingTools, a company that develops software for real-world matching problems, including KitaMatch, a platform for daycare allocation. Learn more at https://matchingtools.de.

In this episode, we speak with Rosemarie Nagel about the Beauty Contest, a classic game in economics. She introduces the setup, its origins, and the early research behind it. We then take a deeper look at the key insights from the Beauty Contest, in particular the concept of level-k reasoning and what it reveals about strategic thinking. Furthermore, Rosemarie shares how findings from these experimental studies have been linked to research on brain activity, offering a unique perspective on decision-making and the functioning of our brains.
Finally, she offers a connection to real-world problems involving strategic reasoning.
Rosemarie Nagel is an ICREA Research Professor at Universitat Pompeu Fabra (UPF) and the Barcelona School of Economics (BSE). As an experimental economist, her research builds bridges between economic theory and behavioral evidence through cognitive models informed by game theory, psychology, neuroscientific methods, and both laboratory and field experiments. Find two papers on the beauty contest game played with newspaper readers and with neuroscientific tools.

Europe's energy crisis has exposed deep structural flaws in how electricity markets work. But according to economist Natalia Fabra, much of the current debate is focused on the wrong problem. In this episode, we unpack why high prices are not simply a result of market design choices like uniform pricing – and why the real issue runs deeper. From the role of gas in price formation to the fundamental mismatch between short-term markets and long-term investment needs, this conversation reframes how we should think about the energy transition.
Natalia Fabra is Professor of Economics at the CEMFI Madrid and one of Europe's leading experts on energy markets and regulation. Her research focuses on market design, competition, and the transition to low-carbon energy systems.

In this episode, we explore how game theory and economics can inform the use of AI. Our guest, Annie Liang, introduces the concept of AI clones, systems designed to imitate specific humans, and discusses their potential applications, for example in recruiting. We examine the trade-off between the efficiency gains the clones can provide and the costs that arise when AI cannot perfectly create such clones without error. The conversation then turns to creative ownership, focusing not only on content but also on the ownership of creative style as AI becomes increasingly capable of reproducing it. Finally, we discuss how insights from information design can contribute to the broader debate on AI.
Annie Liang is an associate professor of economics and (by courtesy) of computer science at Northwestern University.