Seminars

EXCEPTIONAL SCHEDULE. Tuesday, January 30, 2024, C 316, 1:30pm-2:30pm, Voahary Iangotiana ANDRIAMAROMANANA (PhD student, HEC Liège visiting MRE) will present "CAPEX vs FLEX: The optimal investment mix to integrate decentralized production".

Thursday February 29, 2024, C418 , 14h-15h30, Julien JACQMIN (Neoma BS), "The Energy Community and the Grid".
Abstract: Renewable energy communities involve various agents who decide to jointly invest in renewable production units and storage. This paper examines how these communities interact with the energy system and can decrease its overall cost. First, we show that a renewable energy community can contribute positively to welfare if the electricity produced by the investment is consumed close to its place of production, i.e. if the community has a high degree of self-consumption. Second, our analysis identifies the condition on prices and grid tariffs to align the community's interest with welfare maximization. We also show that some of these grid tariffs do not have a negative impact on non-members of the community and could therefore limit potential distributional issues. Third, we argue that variousinternal organization of the renewable energy communities are feasible. The internal organization impacts the distribution of benefits among members but not the global efficiency of the community.

Thursday, March 14, 2024, C418, 2:00-3:30 PM, Thomas PODER (U Montreéal, School of Public Health), "Comparison of Four Approaches in Eliciting Health State Utilities with SF-6Dv2."

Thursday November 23, 2023, C , 14h-15h30, Michele PEZZONI (U. Nice Cote d'Azur), " Research independence: Drivers and impact on PhD students' careers ".
AbstractDrawing upon data on the entire population of French STEM PhD students, we explore the factors leading PhDs to pursue independent research from their supervisors during the PhD and how independence links to their career outcomes. We find that independence is significantly associated with students' and supervisors' characteristics. Moreover, students' independence predicts the probability of starting an academic career and, conditional on starting an academic career, a higher number of articles published after the PhD period. However, the higher number of articles comes at the cost of receiving fewer citations and having a lower probability of obtaining an academic position outside France.

Thursday, May 25, 2023, C, 14h-15h30, Christos CONSTANTATOS (U Macedonia), "On Emissions v. Output taxes and the Optimality of the Regulator's Commitment to a Tax Rate when Consumers Are Environmentally Conscious".

Thursday 18-Friday 19 May 2023, no seminar : Workshop on ordo-liberalism (org. Marie Daou and Alain Marciano)

Friday June 2, 2023, no seminar: Applied Econometrics Day Michel TERRAZA 2023

[REPORTE/POSTPONED] J Thursday April 20, 2023, C418, 14h-15h30, Antoine MARSAUDON (IRDES) presents a paper entitled "Healthcare utilization patterns of undocumented immigrants living in France". [ REPORTE/POSTPONED] J

Thursday, March 30, 2023, Sonia PATY (Université Lyon 2, GATE Lyon St Etienne - UMR 5824,) co-writes with Carla Morvan: "Natural disasters and voter gratitude: what role for prevention policies".

[REPORTE/POSTPONED] Thursday, March 9, 2023, Jimmy LOPEZ (University of Burgundy): "Anticompetitive Regulations and Employment: Evidence on European Regions" and co-authored with Océane Vernerey (University of Burgundy, LEDi).

[REPORTE/POSTPONED] Thursday, January 19, 2023, Carole TREIBICH, Université de Grenoble Alpes, "Disentangling peer effects in transportation mode choice: the example of active commuting" (co-authored with Mathieu Lambotte, Sandrine Mathy and Anna Risch). An earlier version of the paper is available here.
Abstract: We investigate the role of peer effects at the work place on individual choices of active transportation mode. We collect original data through an online survey on networks and sustainable behaviors among 334 individuals working in ten laboratories of the University of Grenoble Alps in February 2020. We apply linear and non-linear models of peer effects on active modal choice, untwining the role of conformism and strategic complementarity in social influence. We show that given our data, a linear local-average specification is the preferred model of peer effects and we estimate strong and significant endogenous peer effects.

[DELAYED/POSTPONED ] Thursday, February 9, 2023, Julien JACQMIN (NEOMA Business School - Rouen): "The energy community and the grid" (co-authored with Axel GAUTIER and Jean-Christophe POUDOU).

• Thursday, December 8, 2022, Ilia MURTAZASHVILI (Graduate School of Public and International Affairs, University of Pittsburgh) (zoom) "The future of spectrum is sharing", Ali Palida (University of Pittsburgh, USA) and Martin Weiss* (University of Pittsburgh, USA).
• Thursday, November 17, 2022, from 2 to 3 p.m. in C417, Florian PELGRIN (EDHEC), "Identifying structural shocks with the Max-Share approach" (co-authored with Alain Guay and Stéphane Surprenant)
• Thursday 13 and Friday 14 October 2022, no seminar: 7th AFED conferenceCenter Saint-Charles, Montpellier (org. Marie Daou and Alain Marciano) 
• Friday, September 30, 2022 at 10am, Nancy-Nice-Montpellier seminar, [[[Online]], Jeanne POULAIN, Université de Lorraine and BETA (CNRS) presents: "Gender based taxation with commodity tax".
• Thursday, September 15, 2022, Stéphane LUCHINI (Aix-Marseille University) presents "Communication under Oath and Collective Action".
• Thursday June 23 at 10:30am, Nancy-Nice-Montpellier Seminar, Eve-Angéline LAMBERT, Université de Lorraine and BETA (CNRS) presents "Frivolous Lawsuits, Settlement and Deterrence: Experimental Evidence".
• Friday, June 10, 2022 from 2:00 pm to 3:30 pm in C316, Rafael PINHO de MORAIS, (Rio de Janeiro State University, UERJ), presents a paper on " Social Finance for Sustainable Development and the ADUBA.ORG project".
• Friday May 20, 2022 from 2:00 pm to 3:30 pm in C316, Carine FRANC (INSERM) "GP installation and ramp-up phase: does vertical integration play a role in GP's care patterns and incomes in the early carrier?" co-authored with Matthieu Cassou (Irdes) and Julien Mousques (Irdes).
• Friday 06 May 2022, 14h C415, Josephine AIKPITANYI (SSS/IRSS, U C Louvain), "Utilization of skilled maternity care in Nigeria: How important are non-cognitive traits?" (co-authored with Friday Okonofua, Lorretta Ntoimo and Sandy Tubeuf).
• Abstract: Low utilization of maternal and child healthcare services remain a challenge in low and lower-middle-income countries. While several studies have documented that financial barriers disproportionately discourage poor women from seeking maternal and child healthcare, empirical evidence reveal instances where even with provision of financial assistance and other initiatives to facilitate healthcare services utilization, women continued not utilizing skilled maternity care. In this study, we investigated how non-cognitive traits matter for the utilization of skilled maternity care in Nigeria. Specifically, we consider the importance of locus of control and the Big-Five personality traits. In the paper, we find that women's internal locus of control was a significant predictor of the utilization of skilled maternity care. We found significant associations between the components of the Big-Five personality traits and the utilization of skilled maternity care. We also found that some of the components of the Big-Five personality traits, such as conscientiousness, neuroticism and openness to experience were significant predictors of locus of control. Our findings also showed that the Big-Five traits mediated the relationship between locus of control and utilization of skilled maternity care.
• Friday, April 29, 2022 , 10h, Séminaire Nancy-Nice-Montpellier, [[Online]], Christophe CHARLIER, (Université Côte d'Azur et GREDEG, ), "Waltz with unilateralism. Reflections on carbon border adjustment mechanism".
• Friday, April 22, 2022, 2pm in C 316, Yacine LEFOUILI (TSE, U. Toulouse 1 Capitole ) presents a paper entitled " Mergers and Demand-Enhancing Innovation " (in collaboration with Marc Bourreau and Bruno Jullien).
• Abstract/Abstract: We study the impact of horizontal mergers on merging firms' incentives to invest in demand-enhancing innovation. In our baseline model, we identify four effects of a symmetric merger on these incentives: the innovation diversion effect, the margin expansion effect, the demand expansion effect, and the per unit return to innovation effect. We offer sufficient conditions for a merger to reduce or raise merging firms' incentives to innovate in the absence of spillovers and efficiency gains in R&D, and find that comparing the innovation diversion and price diversion ratios is informative about the impact of a merger on innovation.
• Friday, March 25, 2022 , Thierry PENARD (CREM, U. Rennes), 14h, " Multimarket Contact and Platform Competition: Reassessing the Mutual Forbearance Hypothesis ", [[[Link to the paperin collaboration with Eric DARMON, Thomas LE TEXIER and Zhiwen LI.
• Abstract/Abstract: Antitrust authorities are particularly concerned with the dominant market position of tech giants such as Google, Facebook, and Amazon. These digital conglomerates are characterized by platform-based business models. However, despite their dominance, they are competing with each other to attract the same groups of users (developers, advertisers, end users, third party sellers, etc). They therefore have not only overlapping users (or sides) but also multimarket contact (MMC). In traditional one-sided markets, theory and empirical evidence show that MMC tends to relax competition. However, it is unclear whether this result holds under platform competition. This paper examines how MMC a ects pricing behaviour and profits of two-sided platforms. We develop a model of platform competition with two distinct markets. We assume that platforms only charge one group of users and provide free access to the other group. We argue that multimarket platforms also generate cross-market externalities that favor their users, in addition to well-known cross-group externalities. We found that when cross-market externalities benefit the side that has free access, price competition is fiercer and total welfare increases under MMC. However, when they benefit the side that pays to access the platform, the same result only holds if the cross-group externality and/or cross-market externality are su\u000Eciently high. Finally, we show that a single-market platform competing with a multimarket platform may be deterred from entering the second market if cross-market or cross-group externalities are high. Our findings contrast with the mutual forbearance hypothesis which claims that MMC relaxes competition in traditional (one-sided) industries. From a competition policy perspective, our paper provides an insight into how antitrust authorities should review conglomerate mergers and assess the e ects of diversification strategies of digital platforms. 
• Friday, January 14, 2022, 2pm: Thibault SCHREPEL, (U. Amsterdam/Standford), " Adding Bockchains to Antitrusts". This seminar took up his latest book "Blockchain + Antitrust".
• Résumé/Abstract: " Blockchain + Antitrus explores the relationship between blockchain and antitrust, highlights the mutual benefits that stem from cooperation between the two and provides a unique perspective on how law and technology could cooperate.To this end, Professor Schrepel will draw upon legal, economic, and technical insights to introduce blockchain and antitrust mutual flaws and the limitations when they ignore each other. He will explore the anticompetitive practices that may arise in the ecosystem and will cover enforcement issues before showcasing the potential of blockchain and antitrust to complement one another. In a nutshell, this talk will address the benefit of a "law + technology" instead of "law & technology" approach. It calls for computer scientists and lawyers to join forces and explore synergies."
• Thursday, February 24, 2022 , Nancy-Nice-Montpellier seminar, 10am, Mehdi AYOUNI (BETA Nancy), "Credence goods, consumer feedback and (in)efficiency".
• Abstract/Abstract: We analyze the effects of consumer feedback on a credence goods market. We present a model where consumers sequentially visit a monopolistic expert. Each consumer faces a problem which can be either minor or major. The expert performs a diagnosis that can reveal information about the severity of the problem faced by each consumer. He then implements a treatment which can solve the problem or not. After visiting the expert, each consumer reveals the received treatment and its outcome, i.e. whether it solved her problem. Each consumer receives the feedback from all previous consumers and uses it to update her belief on the ability of the expert to perform an informative diagnosis. She then decides whether to visit the expert. We show that consumer feedback can lead to inefficiency. More precisely, inefficiency appears when the diagnosis is uninformative and the expert overtreats the consumer while the probability of a major problem is sufficiently low. This inefficiency does not arise in the absence of consumer feedback. 

• Thursday December 02, 2021, Nancy-Nice joint seminar, 1pm (on-line), Alain MARCIANOpresented a paper co-authored with Stefano Dughera (University of Turin) entitled "Some insights on the origin and evolution of Buchanan's Samaritan's Dilemma". 
• Friday November 26, 2021 , 2 pm,Giampaolo GARZARELLI, " Should I say or Should I GO? State Formation Through Internal Exit"(U. La Sapienza), (with Lyndal KEETON, U. Witwatersrand, Johannesburg)
• Friday, October 15, 2021, 2pm,Michel ROLAND (CREATE, Université Laval, Québec, Canada) " Net Neutrality and Universal Service Obligations " co-authored with Axel Gautier (LCII, HEC Liege, University Liège) and Jean-Christophe Poudou (MRE)
• Thursday, October 07, 2021, Joint seminar Nancy-Nice, 13h(on-line),Sarah VAN DRIESSCHEpresented a paper entitled "Poor and rich addressing climate change: An experiment".
• Friday, October 8, 2021, 9:00 am, Faculty of Law and Political Science, Amphi C oronline: Seminar SHS pole, Marlène GUILLON" Confidence, conspiracy beliefs and prevention behaviours in the face of COVID-19".
• [See the full program]
• [See the Pôle SHS website]
• Friday, September 24, 2021 from 2 to 3:30 p.m. in room C418, Roman MESTRE(with Rémy Odry, EconomiX), " Monetary Policy and Business Cycle Synchronization in Europe".
• Wednesday 24 and Thursday 25 February 2021,Webinar WINIR-sponsored event Repugnant Behaviours organized by Alain MARCIANO 
• Friday, November 06, 2020 at 2pm, Webinar: Hospinnomics & Montpellier Recherche Économie: Drug technical workshop.
• Revealed Preference of the decision-makers for priority setting in health technology assessment: Evidence from the French National Health Authority Committees.Pauline KERGALL, Erwan AUTIN,MarlèneGUILLON, ValérieCLEMENT.
• Why France Spends Less on Drugs Than the U.S.: A Comparative Study of Drug Pricing and Pricing Regulation. Veronique C. RAIMOND, William B. FELDMAN, Benjamin N. ROME, Aaron S. KESSELHEIM.

• Friday, March 6, 2020: Emmanuel LORENZON (Grenoble-Alpes University, GAEL and Governance and Regulation Chair/Paris-Dauphine University) will present a paper entitled "Zero-Rating and Investment Incentives.
• Friday, November 22, 2019 from 2 to 3:30 p.m. in C 415: David GINDIS, University of Hertfordshire, Organisation, Markets and Policy Research Group. presents an article entitled "Law And Economics Under The Palms: Henry Manne At The University Of Miami, 1974-1980".
• Friday, September 20, 2019 from 2 to 3:30 pm in C 415, Pierre-Henri MORAND, University of Avignon, LBNC, presents an article entitled "Are social and environmental clauses a tool for favoritism? Analysis of French public procurement markets", (co-authored with F. Marechal).
• Friday, October 18, 2019: Marie OBIDZINSKI, Université Paris 2, CRED, "Public Law Enforcement Under Ambiguity," co-authored with B. Chopard.
• Friday May 17, 2019 from 2pm to 3:30pm in C 315:Mehrdad VAHABI, (Université Paris 13 Nord), will present a text entitled "A positive theory of the predatory state".
• Friday March 22, 2019 from 2pm to 3:30pm, room C 415: Wilfried SAND-ZANTMAN(TSE, Université de Toulouse 1 Capitole) " The Ownership of data" co-written with A. Dosis (ESSEC).
  Abstract: We study the effect of property rights over the use of data on market outcomes. For this, we consider a model in which a website offers a service to a set of heterogeneous users and usage generates valuable data but data extraction entails a privacy cost to users. When data extraction is contractible, the trade-off between data monetization and privacy restricts the share of users for which data is indeed monetized. When data extraction is not contractible, both the firm and users prefer the users (the firm) to own the rights for low (high) values of data. We then extend our analysis in allowing the rights to be traded ex-post and discuss how this impacts both efficiency and rent sharing.
• Friday, February 08, 2019 from 2 pm to 3:30 pm in C 415: Enrico COLOMBATTO (University of Turin),"How to apply the key notions of anarco-capitalism to today's world".
• Friday, January 25, 2019 from 2 to 3:30 pm: Stéphane GONZALEZ (GATE-LSE, Université Jean Monnet, St-Etienne), "Axiomatic Foundations of a Unifying Core"
  Abstract: We provide an axiomatic characterization of the core of games in effectiveness form. We point out that the core, whenever it applies to appropriate classes of these games, coincides with a wide variety of prominent stability concepts in social choice and game theory, such as the Condorcet winner, the Nash equilibrium, pairwise stability, and stable matchings, among others. Our characterization of the core invokes the axioms of restricted non-emptiness, coalitional unanimity, and Maskin invariance together with a principle of independence of irrelevant states, and uses in its proof a holdover property echoing the conventional ancestor property. Taking special cases of this general characterization of the core, we derive new characterizations of the previously mentioned stability concepts.

• Thursday, January 25, 2 - 3:30 pm Laurent LINNEMER, "Partial exclusivity" in C315Downloadarticle / Download
• Thursday, February 08, 2:00 pm to 3:30 pm: Bruno JULLIEN, "Privacy Protection and Consumer Retention "Télécharger l'article / Download
• Thursday March 29, 2 - 3:30 pm in C 215: David MARTIMORT, (PSE, EHESS), "Precaution, Information and Time-Consistency: Some Preliminary Thoughts on the Precautionary Principle" (joint paper with Louise Guillouet, Columbia).
• Friday, April 06, 2 to 3:30 p.m.: Pierre-Yves GEOFFARD, (PSE, CNRS), "Striving now to shirk later? inter temporal moral hazard in car insurance (joint paper with Alexandre Godzinski)".
• Thursday May 3, 2:00 pm to 3:30 pm, room C 318: Benoît MULKAY(MRE, UM) "How does competition affect innovation behavior of French firms?
• Thursday May 24, 2pm to 3:30pm, room C415: Yann GIRAUD(THEMA, U Cergy), "Economy and engineering: institutions, practices and cultures".
• Thursday, June 7, 2pm to 3:30pm, room C315, Marc DUBOIS (MRE, UM), "Competitive Imbalance of Heterogeneous Teams in Closed Leagues and Dominance Criteria" with Jean-Pascal Gayant (Université du Mans) and Nicolas Le Pape (Université de Caen Basse-Normandie)Download l'article / Download
• Friday September 28, 2pm - 3:30pm, room C315: Lionel THOMAS (CRESE, Université Franche Comté, Besançon), "Optimal payment system for hospitals under adverse selection, moral hazard and limited liability", co-authored with François Maréchal.
• Friday October 19, 2pm - 3:30pm, Room C 315: Marlène GUILLON (MRE, Université de Montpellier), "Efficience des centers de santé primaire en milieu rural en Mongolie".
• Friday November 16, 2pm - 3:30pm: Harro MAAS (University of Lausanne, Walras Pareto Center), "Mental Accounting Matters, and it is a Practice: Reflections from History".