NEWS
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NEW (2026): RD Cooperation and Spillovers: Do Research Joint Ventures Improve Welfare?
with Yassine Badra (PHEAAC, Université des Antilles, FR)
and Huizhong Liu (Wenlan School of Business, Zhongnan University of Economics and Law, Wuhan, China).
accepted for publication in Mathematical Social SciencesNEW (2026): Misperception, Self-Reported Probabilities and Long Term Care Insurance Take-Up in the United States
with Thomas Blavet (CES, Université Paris 1 Panthéon Sorbonne, FR), Thomas Rapp (LIRAES, Université Paris Cité, LIEPP Sciences Po, FR) and Jonathan Sicsic (LIRAES, Université Paris Cité, LIEPP Sciences Po, FR) - new version
accepted for publication in International Journal of Health Economics and Management
Optimal Liability Rules for Human-AI Health Care Decisions
with Olivier Musy (LIRAES, Université Paris Cité, FR)
accepted for publication in Annals of Economics and Statistics
Liability Law, Defensive Medicine and Healthcare Quality
accepted for publication in The International Review of Law and Economics
Behavioral Determinants of Blood Donation: New Insights from the French Context
with Maria Errea (Office of Health Economics in London, UK) and Nicolas Sirven (The EHESP School of Public Health, FR)
submitted
Available upon request, please contact bertrand.chopard@u-paris.fr
Working papers
Clinical Practice Guidelines and Liability
with Ludivine Roussey (LIRAES, Université Paris Cité, FR)
working paper being updatedRD Cooperation and Spillovers: Do Research Joint Ventures Improve Welfare?
was presented at the International Conference on Public Economic Theory, 23 - 25 June, 2025, Lisbon, Portugal.
Session B8 : Industrial Organization.
Last presentation at the 2025 Annual Meeting of the Association of Southern European Economic Theorists, 30 October - 01 November, 2025, Morocco.
Session 1B : Industrial Organization.Creditor Concerns in Lay Hands: The Influence of Non-Professional Courts on Post-Default Recovery Rates
with Régis Blazy (University of Strasbourg, EM Strasbourg, Sciences Po Srasbourg and LARGE, FR) and Ludovico Maria Cocco (Ca' Foscari University Venice, IT)
working paper being updated
Work in progress
Balance Billing in Health Care: When Physician Pricing Fails Social Efficiency
by Yassine Badra (PHEAAC, Université des Antilles, FR) and Bertrand Chopard (LIRAES Univ. Paris Cité).
Negligence Rule and Healthcare Provider's Incentives with Payment Schemes
by Bertrand Chopard (LIRAES Univ. Paris Cité),
NEW (Dec. 2025): Pretrial Settlement and Polarization of Beliefs in Medical Litigation
by Bertrand Chopard (LIRAES Univ. Paris Cité).