
Ruled by Reason
The American Antitrust Institute’s Ruled by Reason podcast explores current topics in progressive antitrust with experts from enforcement, business, and academia. Ruled by Reason guests discuss and debate the benefits of competition for markets, consumers, and workers. We delve into the importance of antitrust enforcement for promoting competition in our markets and democratic values in civil society.
Latest episodes

Apr 28, 2025 • 53min
Experts, Daubert, and Judicial Gatekeeping: A Conversation with Edoardo Peruzzi and Christine Bartholomew
On this episode of Ruled by Reason, AAI Senior Counsel David O. Fisher chats with economist Edoardo Peruzzi and antitrust scholar Christine Bartholomew about the role of Daubert challenges in antitrust suits, focusing on the increasing role of Daubert as a gatekeeping device that may be hindering private antitrust enforcement. The conversation begins with an examination of Peruzzi’s recent working paper, which finds that Daubert challenges have become more frequent in antitrust cases and that, although plaintiffs’ experts are challenged more frequently, defendants’ experts are more often excluded (6:30). Bartholomew places Peruzzi’s findings within a context of increased procedural gatekeeping in antitrust cases, including the conflation of Daubert issues with the requirements of class certification, which she argues has wrongly turned Daubert into an outcome-determinative mechanism that is hindering private antitrust enforcement (22:20). The group then discusses potential solutions to this problem—including a different admissibility standard for economic testimony, increasing the use of court-appointed experts, and delaying the consideration of admissibility until the eve of trial—but finds none of them to be feasible. (30:15). Instead, they conclude that the solution lies in a return to the language of the Daubert trilogy and its goal of liberalizing the admissibility of expert testimony, which means keeping Daubert questions separate from the standards of class certification and rejecting efforts to treat the “fit” inquiry into a strict requirement of admissibility (40:05).

Sep 12, 2024 • 55min
How the Agri-Stats Case Can Help Shape Treatment of Anticompetitive Information Exchanges: A Discussion Between Emily Bridges of the Food and Agriculture Impact Project and Professor Peter Carstensen
On this episode of Ruled by Reason, Emily Bridges of the Food and Agriculture Impact Project has a wide-ranging discussion with antitrust scholar Peter Carstensen about the role of information exchange in restricting competition in agricultural markets, focusing on how the DOJ’s case against Agri-Stats addresses that threat. After covering the oligopolistic nature of many agricultural markets (2:45), the two do a deep dive on why information exchange can be so harmful to competition (11:04). Professor Carstensen explains how the law on information exchange has evolved and how that history has led to unfortunate ambiguity about the applicable standard (17:10). Professor Carstensen then explains why information exchange has been a particular problem in agricultural markets. He describes how recent cases in this area, including both private actions and the DOJ’s case against the information aggregator, Agri-Stats, can play an important role in clarifying and strengthening enforcement against unjustified information exchanges (27:20). The discussion concludes with some thoughts about what we can expect from current trends in litigation over illegal information exchanges (48:50). Emily Bridges is a Research Attorney for the LL.M. Program in Agricultural and Food Law at the University of Arkansas School of Law, working with the Food and Agriculture Impact Project. Emily received a JD and an LL.M. in Agricultural and Food Law from the University of Arkansas School of Law. The Food and Agriculture Impact Project works with faculty, students, organizations and other educational institutions to provide policy and legal research, analysis and education, supporting the farm and food community with educational resources. Peter Carstensen is Professor Emeritus at the University of Wisconsin Law School and a Senior Fellow and Advisory Board Member at AAI. He previously served in the Antitrust Division at the Department of Justice. Professor Carstensen received the 2024 Alfred E. Kahn Award for Antitrust Achievement, presented by AAI in recognition of his outstanding contributions to the field.

Aug 22, 2024 • 48min
Competition, Fairness, and Regulation in Food & Agriculture: A Conversation with Andy Green, Senior Advisor for Fair and Competitive Markets at the U.S. Department of Agriculture
In this episode of Ruled by Reason, AAI President Randy Stutz sits down with Andy Green, the Senior Advisor for Fair and Competitive Markets at the U.S. Department of Agriculture. The two discuss how Green found his way to the USDA after beginning his career as a corporate securities lawyer and developing policy expertise in the financial sector (2:46), the new role created for a competition advisor at USDA (9:25), USDA’s tools for implementing President Biden’s Executive Order on Promoting Competition (11:02), USDA’s coordination with the USPTO to strengthen patent quality and promote competition in seeds markets (29:25), USDA’s coordination with the Antitrust Division of the DOJ to enforce the unique standards of the Packers & Stockyards Act (35:57), the interplay between Sherman Act claims involving collusive price setting through intermediaries and the USDA’s pricing transparency rulemakings (41:48), and issues in food and agriculture that the next president of the United States will inherit (44:28).

Aug 14, 2024 • 33min
How Exactly Does Common Ownership Harm Competition? A Conversation with Florian Ederer, Jerry S. Cohen Award Winner for Antitrust Scholarship
In this conversation, Florian Ederer, an award-winning professor at Boston University, shares his groundbreaking insights on common ownership's impact on competition. He discusses how common ownership can weaken managerial incentives and lead to less competitive behavior in industries like airlines. The episode delves into the correlations between CEO compensation and ownership levels, revealing surprising findings about passive investors' influence on market dynamics. Ederer also addresses implications for antitrust policy, emphasizing the need for fresh approaches in this evolving landscape.

Jun 20, 2024 • 60min
International Update: Checking In with ICN's Cartel Working Group
In this episode of Ruled by Reason, AAI goes international! Enforcers from the U.S., New Zealand, UK and Chile talk with Kathleen Bradish, Vice President and Director of Legal Advocacy, about their agencies’ cross-border work to stop price-fixing cartels. Leah McCoy, Juan Correa, Louise Baner, and Grant Chamberlain, whose agencies are heading up the International Competition Network’s Cartel Working Group, tell us about the important role of the CWG in advancing cross-border enforcement and give us a preview of some of CWG’s exciting new projects. These include initiatives that reflect on-going, long-term concerns of international enforcers, like improving international cooperation and addressing obstruction. Other projects address emerging challenges like the specter of algorithmic collusion and the effect of complex networks of privacy laws on evidence collection. Our conversation concludes with Chile’s and New Zealand’s perspective on how ICN, and the Cartel Working Group in particular, can aid newer and smaller agencies.

Feb 7, 2024 • 52min
Default Status/De Facto Exclusion: What does a Rival Search Company Have to Say About the Google Case?
On this episode of Ruled by Reason, we explore the ramifications of the Google search case from a unique perspective—the rival search engines that have been directly affected by Google’s alleged monopolistic conduct. As the antitrust world eagerly awaits a decision this spring, AAI’s Kathleen Bradish interviews DuckDuckGo's Kamyl Bazbaz, VP of Communications and Public Affairs, about his impressions of the recently argued case. This episode unpacks how Google’s conduct, including “marathon” sized payments to OEMs to ensure default status, cuts rivals off from major access points and stymies customer choice. Bazbaz weighs in on the potential remedies that could help restore competition to search and improve customer’s online experience.

Nov 1, 2023 • 42min
Praise and Constructive Criticism: The Pro-Enforcement Community Weighs in on the Draft Merger Guidelines
On this episode of Ruled by Reason, AAI’s Kathleen Bradish talks with Open Market’s Sandeep Vaheesan and the American Economic Liberties Project’s Erik Peinert about the pro-enforcement community’s views on the draft Merger Guidelines recently released by the FTC and DOJ. This is a wide-ranging and in-depth discussion about how the proposed changes succeed in advancing better merger enforcement, where they fall short, and what beneficial modifications could be made to the final version. Using each organization’s comments to the draft Guidelines as the jumping off point, Bradish talks with Vaheesan and Peinert about the proper role of guidelines, the importance of structural presumptions, the differences between treatment of vertical and horizontal mergers, and the viability of the efficiencies defense. The discussion concludes with thoughts about how to maximize the practical impact and the long-term viability of the Guidelines.

Aug 23, 2023 • 36min
How Should Antitrust Tackle Antitrust’s “Duty to Deal” in the Tech Sector? A Conversation With Erik Hovenkamp, 2023 Jerry S. Cohen Award Winner for Antitrust Scholarship
In this episode of Ruled by Reason, guest host Roger Noll, Professor of Economics, Emeritus, at Stanford University and AAI Advisor sits down with Erik Hovenkamp to chat about his award-winning article The Antitrust Duty to Deal in the Age of Big Tech” (131 Yale L.J. 1483 (2022)). Professor Hovenkamp is Assistant Professor at the USC Gould School of Law. His article argues that the law on exclusive dealing has failed to distinguish between “primary” and “secondary” refusals to deal. The article explains that the suffocating evidentiary requirements imposed on refusal to deal claims should not be applied to secondary refusals to deal because they do not implicate the same innovation concerns that motivate suspicion of “primary” refusal to deal claims. Instead, Hovenkamp argues that secondary refusal to deal claims should be evaluated analogously to tying or related vertical restraints. Antitrust scholarship that is considered and selected for the Jerry S. Cohen Award reflects a concern for principles of economic justice, the dispersal of economic power, the maintenance of effective limitations upon economic power or the federal statutes designed to protect society from various forms of anticompetitive activity. Scholarship reflects an awareness of the human and social impacts of economic institutions upon individuals, small businesses and other institutions necessary to the maintenance of a just and humane society–values and concerns Jerry S. Cohen dedicated his life and work to fostering.

Aug 1, 2023 • 48min
Unpacking the 2023 Revised Merger Guidelines: A Conversation With the U.S. Department of Justice
On this episode of Ruled by Reason, AAI President, Diana Moss, and AAI Vice President for Legal Advocacy, Kathleen Bradish talk with leadership at the U.S. Department of Justice, Antitrust Division about the newly released merger guidelines. Moss and Bradish are joined by Susan Athey, Chief Economist for the Antitrust Division and Michael Kades, Deputy Assistant Attorney General for the Antitrust Division. This is the 7th revision of the merger guidelines since they were first released by the antitrust agencies in 1968. The revisions are notable for many reasons, not the least of which is their timing, which comes at an inflection point in antitrust enforcement and competition policy. The draft guidelines address a number of growing concerns around consolidation, including high and rising concentration, high barriers to entry, and the emergence of dominant firms and tight oligopolies in key markets. The revised guidelines also take on issues not addressed head on by previous agency guidance, such as the effect of mergers on the loss of worker bargaining power, firm growth through “serial acquisitions,” the complexities of partial ownership and control, elimination of potential entrants, and the emergence of business models, such as digital ecosystems with multisided platforms. Today’s episode unpacks these and other key takeaways from the draft merger guidelines.

Jul 17, 2023 • 37min
The Cloud Technology Market: Storm of Innovation or Rainy Days for Competition?
On this episode of Ruled by Reason, AAI President, Diana Moss, and AAI Vice President for Legal Advocacy, Kathleen Bradish talk about competition and cloud technology markets. AAI recently issued the report: The Cloud Technology Market: Storm of Innovation or Rainy Days for Competition? Moss and Bradish unpack AAI’s analysis of a vitally important market in the digital economy, beginning with the explosive growth in cloud computing over the last two and a half decades. The report identifies the major cloud players and asks: What is the state of competition in the market? For example, is technological dynamism driving new entry? Are players jockeying for position by stealing share from each other? What does this all mean for how cloud providers compete with one another and are they any warning signs that competition may be flagging? Most important, how should antitrust enforcers and competition policymakers be thinking about promoting competition in cloud?