Common Ownership Conferences
Conferences and workshops on common ownership, competition and corporate governance, organised by Martin C. Schmalz, Saïd Business School, University of Oxford.
Upcoming
2026
ERC-DICACO Conference on the Causes and Consequences of Common Ownership
From 12:30 on 2 November to 18:00 on 3 November. Programme to follow.
Past conferences
2026
Oxford/ERC-DICACO Workshop on Theories of Endogenous (Common) Ownership
Programme
Monday, 10 August
| 15:30–16:00 | Opening remarks — Martin Schmalz |
| 16:00–16:45 | Martin Schmalz, Does Cheap Diversification Benefit Investors? Discussants: Kai Mäckle, Sergey Zhuk |
Tuesday, 11 August
| 09:00–09:30 | Patrick Arnold & Gennaro Brosco, Ownership Endogeneity and Diversification Discussant: Sergey Zhuk |
| 10:00–10:20 | Juan Ortner, Procurement Auctions under Common Ownership (Theory) |
| 11:00–11:30 | José Azar, Melitz–Polanec Decomposition of Common Ownership Measures in Price Regressions |
| 11:45–12:15 | Harald Hau, Common Ownership and Firm Profitability (Theory and Evidence) |
| 13:30–14:00 | Thomas Gehrig, Measuring Common Ownership |
| 14:15–14:45 | Future research projects — open discussion |
Wednesday, 12 August
| 09:00–09:10 | Juan Ortner, Procurement Auctions under Common Ownership: Data Needs |
| 09:10–09:30 | Vladimir Fedoseev, Status of Procurement Auction and Ownership Data Collection |
2024
Harvard/Oxford Conference on Common Ownership, Directors, Governance, and Competition
Programme
| 09:00 | Opening remarks — Martin Schmalz (Oxford) |
| 09:15–11:30 | Young Scholars Rocket Session Chair: Paul Gompers (Harvard Business School) |
| Mario Leccese (Boston University), Strategic Investment in Competitors: Theory and Evidence from Technology Startups Discussant: Tong Liu (MIT) | |
| Roma Poberejsky (Cornerstone), Interlocking Directorates, Competition, and Innovation Discussant: Florian Ederer (Boston University) | |
| Elena Prager (Rochester), Collusion through Common Leadership | |
| Fiona Kasperk (Oxford), Activist Portfolios Discussant: Nicole Boyson (Northeastern) | |
| Tove Forsbacka (NHH), The Proxy Advice Industry and Common Owners’ Coordination Discussant: Tao Li (Florida) | |
| 12:00–12:45 | NBIM Grant Session: Experimental Advances Chair: Anna Tzanaki |
| Jonas Frey (University of Gothenburg), Diversification vs. Monopolization: A Lab Experiment Discussant: Pedro Dal Bó (Brown) | |
| 13:00–13:30 | Fireside chat with Rohit Chopra, Director of the Consumer Financial Protection Bureau and former Commissioner of the Federal Trade Commission |
| 13:45–15:00 | Structural Advances Chair: Mireia Giné |
| Kenneth Khoo (National University of Singapore), Common Ownership, Markups, and Corporate Governance Discussant: Alexandro Ruiz Pérez (Compass Lexecon) | |
| Isabel Tecu (Charles River Associates), Understanding Endogenous Market Shares in Common Ownership Regressions | |
| 15:30 | Policy panel: what kind of evidence do policy makers and enforcers need? Moderator: Einer Elhauge (Harvard Law School) Shaoul Sussman, Associate Director for Litigation, U.S. Federal Trade Commission Olivier Guersant, Director General, DG Competition, European Commission Thomas Reyntjens, Court of Justice of the European Union David Lawrence, Policy Director, Antitrust Division, U.S. Department of Justice |
| 17:15 | Closing remarks — Martin Schmalz |
2023
NBIM-Oxford Conference on Common Ownership / Experimental Governance and IO
Programme
| 09:00–09:40 | Anna Abate Bessomo (European University Institute), Private Benefits of Influence Discussant: Paul Voss (CEU) |
| 09:40–10:20 | Zhenghui Ni (NUS Business School), Active Mutual Fund Common Owners’ Returns and Proxy Voting Behavior Discussant: Bige Kahraman (Saïd Business School, Oxford) |
| 10:40–11:20 | Annalisa Tonetto (Cambridge Judge Business School), Corporate Governance Networks and Financial Performance Discussant: Alminas Žaldokas (HKUST) |
| 11:20–12:30 | Daniel Fernández (CEMFI), Reshaping the Supply Chain Network |
| Camillo Riva (ESSEC Business School), Common Ownership in Product Markets: The Role of Supply Chains Discussant: Harald Hau (University of Geneva), both papers | |
| 13:30–14:10 | Alminas Žaldokas (HKUST), Do Board Connections between Product Market Peers Impede Competition? Discussant: Hannes Wagner (Bocconi University) |
| 14:10–14:50 | Emanuele Tarantino (University of Mannheim), Credit Conditions when Lenders are Commonly Owned Discussant: Daniel Streitz (Halle Institute for Economic Research) |
| 14:50–15:30 | Jiajun Tao (Bayes Business School), Does Knowledge Protection Spur Common Ownership? Evidence from the Inevitable Disclosure Doctrine Discussant: Miguel Antón (IESE) |
| 15:50–16:30 | Albert Banal-Estañol (Pompeu Fabra University), Common Ownership: Europe vs the US Discussant: Mario Leccese (University of Maryland) |
| 16:30–17:10 | Yufei Deng (Universidad Carlos III de Madrid), Index Investing, the Distribution of Ownership, and Product Market Outcomes Discussant: Merih Sevilir (Halle Institute for Economic Research) |
| 17:10–17:50 | Martin Schmalz (Saïd Business School, Oxford), Diversification vs. Monopolization: A Laboratory Experiment Discussant: Elena Asparouhova (University of Utah) |
Programme committee: Martin Schmalz (organiser), José Azar, Giacinta Cestone, Christopher Conlon, Florian Ederer, Mireia Giné, Hans-Theo Normann, Bruno Pellegrino, Isabel Tecu, William Zame.
2021
Mini-Conference: Diversified Institutional Ownership and Firms’ Strategic Behavior — Causal Effects and Mechanisms
Programme
| 08:00–08:30 | Agency conflicts in structural models of common ownership Azar & Ribeiro Discussants: Chris Conlon, Frank Verboven |
| 08:30–09:00 | Experimental advances Hariskos, Königstein & Papadopoulos Discussants: Anna Bayona, Frédéric-Guillaume Schneider |
| 09:00–10:30 | Equilibrium ownership Bayona, Lopez & Manganelli — discussants: Geert Van Moer, Konstantinos Papadopoulos Stenbacka & Van Moer — discussants: Angel Lopez, Jan Schneemeier Hemphill & Kahan — discussants: Angel Lopez, Alessio Piccolo |
Funded by the European Union (ERC, DICACO, 101171287). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them.