Seminars

Thursday, February 6, 2025, C 414, 1:30-2:30 p.m., Roberto IPPOLLITI (U., Universita’ degli Studi del Piemonte Orientale “Amedeo Avogadro,” Department of Law, Political, Social and Economic Sciences) will present "Financial constraints, institutional quality and import trade flows: an empirical investigation on the internationalization process of Italian SMEs"
Abstract:This work investigates the role of local institutions in the internationalization process of SMEs, considering the Italian manufacturing industry and SMEs' import trade flows between 2015 and 2019. In detail, we test the hypothesis of whether courts' ability to enforce contracts can amplify uncertainty on the GVC, discouraging foreign suppliers from performing international transactions. We interpret these expectations in terms of financial constraints, imagining that the quality of a legal system limits firms' access to local financial resources, which are essential to guarantee such operations. The proposed hypothesis is assessed considering alternative explanations that might characterize importers: absence of ex-ante business networks on the GVC (i), expected bankruptcy risks (ii) and asymmetric information (iii). Results are consistent with several robustness tests and, according to the collected evidence, we cannot reject the hypothesis that judicial quality might represent an institutional barrier to local SMEs, preventing their internationalization process.

Doctoral Seminar. Tuesday, February 4, 2025, from 12:30 p.m. to 1:30 p.m. in C 318: presentation of work by Issa Djadallah, Issa Bichara, and Marie Bidan.

Doctoral Seminar Tuesday, March 4, 2025, from 12:30 p.m. to 1:30 p.m. in C 318: presentation of work by Sara MUSTAFAZADE, followed by Sarodja NAMINZO 

Thursday, April 3, 2025, C 414, 1:30-2:30 p.m., Jean-Philippe SERBERA (DS of Management -ESC Pau) presented "Utility Blockchain Adoption in Oligopolistic Markets."

Doctoral Seminar Tuesday, May 6, 2025, from 12:30 p.m. to 1:30 p.m. in C 318: presentation of work by Imtynan KHALIFEH

Doctoral Seminar Tuesday, May 13, 2025, from 12:30 p.m. to 1:30 p.m. in C 318: Sofia PATSALI on the topic "Preparing for your interview to become an assistant professor."

Thursday, May 15, 2025, C 414, 1:30-2:30 p.m., Flora BELLONE (University of Côte d’Azur, GREDEG) will present “Tax avoidance by small multinationals as a bad side effect of anti-tax avoidance policy.”

Doctoral Seminar Tuesday, June 3, 2025, from 12:30 p.m. to 1:30 p.m. in C 318: presentation of work by Akoula KOUADIO and Faical GADO

Doctoral Seminar Tuesday, October 21, 2025, from 12:30 p.m. to 1:30 p.m. in C 417: presentation of work by Sara MUSTAFAZADE

Doctoral SeminarTuesday, November 4, 2025, from 12:30 p.m. to 1:30 p.m. in C 417: presentation of work byGabin MORILLON

Thursday, November 27, 2025, C 414, 1:30-2:30 p.m., Matthieu CASSOU (Irdes) will present "Per capita or per procedure? Impact of a change in payment for multi-professional health centers in France," co-authored with Damien BRICARD, Carine Franc, and Julien Mousquès.

Thursday, December 4, 2025, C 414, 1:30-2:30 p.m., Axel GAUTIER (HEC Liège) will present "Innovation and Startup Acquisition," co-authored with Marc BOURREAU.
Abstract: In this paper, we consider two platforms that compete for the development of a new product to integrate into their ecosystems. The new product can be developed either in-house by the platforms or by an independent startup active only in the technology market. The presence of the startup affects the platforms' R&D efforts through an insurance effect, which reduces the cost of failure in innovation, and a competition effect, which diminishes the returns to innovation. The magnitude of these effects depends on the attitude of the competition authorities towards the acquisition of the startup by one of the platforms. We show that allowing acquisitions stimulates platform innovation, but at the cost of a more concentrated market structure. We also compare the funding of the startup by independent venture capitalists or by the platforms themselves, and investigate how the merger regime influences the direction of the startup’s innovation.

SPECIAL SCHEDULE. Tuesday, January 30, 2024, C 316, 1:30-2:30 p.m., 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, 2:00-3:30 p.m., 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 various internal organizations of 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 p.m., Thomas PODER (University of Montreal, School of Public Health), "Comparison of Four Approaches in Eliciting Health State Utilities with SF-6Dv2"

Thursday, April 25, 2024, C418, 2:00-3:30 p.m., Stéphane LHUILLERY (NEOMA Business School, Reims & BETA, Strasbourg) "Biotech or bioeconomy: six of one and half a dozen of the other?"

Thursday, May 16, 2024, C418, 2:00–3:30 p.m., Damien BRICARD(MC, IRDES), “Territorial efficiency of healthcare spending for the elderly: the role of local healthcare provision” 

Thursday, May 30, 2024, C418, 2:00–3:30 p.m., Antoine MARSAUDON(IRDES), "Health status and use of healthcare services by undocumented immigrants."

Doctoral Seminar. Tuesday, October 22, 2024, from 12:30 p.m. to 1:30 p.m. in C 318, Marie DAOU will present the entire process leading to qualification as a teacher-researcher.

Doctoral Seminar. Tuesday, December 3, 2024, from 12:30 p.m. to 1:30 p.m. in C 318, Gabin MORILLON will present the use of Mon Espace Santé.

Thursday, December 5, 2024, C 144, 1:30-2:30 p.m., Etienne FARVAQUE(University of Lille) will present "Multi-speed revenue-smoothing across European regions"
Abstract: We analyze the dynamics of revenue smoothing within the European Union at the regional (NUTS2) level, spanning the period from 2000 to 2020. We investigate the extent of revenue smoothing while introducing demographic variations as an explicit channel of risk sharing in the union. Furthermore, we distinguish the diverse sources of household revenues, measuring their respective contributions to revenue smoothing. Our findings shed light on the importance of the different channels of revenue smoothing, revealing in particular how they differ between the core and the periphery of the union and how they have evolved since the 2008 crisis. While the euro area regions smooth shocks by 50%, the European Union ones get a lower smoothing degree, only equal to 33%.

Thursday, November 23, 2023, C, 2:00-3:30 p.m., Michele PEZZONI (University of Nice Côte d'Azur), "Research independence: Drivers and impact on PhD students' careers."
Abstract: Drawing 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, 2:00-3:30 p.m., Christos CONSTANTATOS (University of Macedonia), "On Emissions v. Output Taxes and the Optimality of the Regulator's Commitment to a Tax Rate when Consumers Are Environmentally Conscious"

Thursday, May 18–Friday, May 19, 2023,no seminar: Workshop on ordoliberalism (organized by Marie Daou and Alain Marciano)

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

[POSTPONED] Thursday, April 20, 2023, C418, 2:00-3:30 p.m., Antoine MARSAUDON(IRDES) presents an article entitled "Healthcare utilization patterns of undocumented immigrants living in France. " [POSTPONED]

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

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

[POSTPONED] Thursday, January 19, 2023,Carole TREIBICH, University of Grenoble Alpes, "Disentangling peer effects in transportation mode choice: the example of active commuting" (co-authored with Mathieu Lambotte, Sandrine Mathy, and Anna Risch). A previous version of the paper is availablehere.
Abstract:We investigate the role of peer effects at the workplace 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 Alpes 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.

[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 2:00 p.m. to 3:00 p.m. in C417,Florian PELGRIN(EDHEC), “Identifying structural shocks with the Max-Share approach” (co-authored with Alain Guay and Stéphane Surprenant)
• Thursday, October 13, and Friday, October 14, 2022,no seminar:  7th AFED conference, Centre Saint-Charles, Montpellier (organized by Marie Daou and Alain Marciano) 
• Friday, September 30, 2022, at 10 a.m.,Nancy-Nice-Montpellier Seminar, [[Online]],Jeanne POULAIN, University of 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 10:30 a.m.,Nancy-Nice-Montpellier Seminar,Eve-Angéline LAMBERT, University of Lorraine and BETA (CNRS) presents "Frivolous Lawsuits, Settlement, and Deterrence: Experimental Evidence."
• On Friday, June 10, 2022, from 2:00 p.m. to 3:30 p.m. in C316,Rafael PINHO de MORAIS(Rio de Janeiro State University, UERJ) will present an article entitled "Social Finance for Sustainable Development and theADUBA.ORG Project."
• Friday, May 20, 2022, from 2:00 p.m. to 3:30 p.m. 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 career?" co-authored withMatthieu Cassou(Irdes) andJulien Mousques (Irdes).
• Friday, May 6, 2022, 2 p.m., C415,Josephine AIKPITANYI (SSS/IRSS, University of Leuven),“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 remains 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 reveals instances where, even with the provision of financial assistance and other initiatives to facilitate healthcare service utilization, women continued not to utilize 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, 10 a.m.,Nancy-Nice-Montpellier Seminar, [[Online]],Christophe CHARLIER, (Université Côte d’Azur and GREDEG), “Waltz with unilateralism. Reflections on carbon border adjustment mechanism.”
• Friday, April 22, 2022, 2 p.m. in C 316, Yacine LEFOUILI (TSE, University of Toulouse 1 Capitole) will present an article entitled "Mergers and Demand-Enhancing Innovation" (in collaboration with Marc Bourreau and Bruno Jullien).
• 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, University of Rennes), 2 p.m., "Multimarket Contact and Platform Competition: Reassessing the Mutual Forbearance Hypothesis," [[Link to the paper]] in collaboration with Eric DARMON, Thomas LE TEXIER, and Zhiwen LI.
• 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 affects pricing behavior 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 sufficiently high. Finally, we show that a single-market platform competing with a multi-market 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 insight into how antitrust authorities should review conglomerate mergers and assess the effects of diversification strategies of digital platforms. 
• Friday, January 14, 2022, 2 p.m.:Thibault SCHREPEL, (University of Amsterdam/Stanford), "Adding Blockchains to Antitrusts." Thisseminar revisited his latest book, "Blockchain + Antitrust."
• Abstract: "Blockchain + Antitrust 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, 10 a.m.,Mehdi AYOUNI (BETA Nancy), "Credence goods, consumer feedback, and (in)efficiency."
• 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 may or may not solve the problem. After visiting the expert, each consumer reveals the treatment received and its outcome, i.e. whether it solved her problem. Each consumer receives feedback from all previous consumers and uses it to update her belief about the expert's ability 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 arises 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 2, 2021, Joint Nancy-Nice Seminar, 1:00 p.m. (online),Alain MARCIANOpresented an article 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 p.m.,Giampaolo GARZARELLI, "Should I say or Should I GO? State Formation Through Internal Exit"(La Sapienza University), (with Lyndal KEETON, University of the Witwatersrand, Johannesburg)
• Friday, October 15, 2021, 2 p.m.,Michel ROLAND (CREATE, Laval University, Quebec, Canada) "Net Neutrality and Universal Service Obligations" co-authored with Axel Gautier (LCII, HEC Liege, University of Liege) and Jean-Christophe Poudou (MRE)
• Thursday, October 7, 2021, Joint Nancy-Nice Seminar, 1:00 p.m. (online),Sarah VAN DRIESSCHEpresented a paper entitled "Poor and rich addressing climate change: An experiment."
• Friday, October 8, 2021, 9:00 a.m., Faculty of Law and Political Science in Lecture Hall Cor online: Humanities and Social Sciences Seminar,Marlène GUILLON "Trust, conspiracy theories, and preventive behaviors in response to COVID-19"
• [See the full program]
• [See the Pôle SHS website]
• Friday, September 24, 2021, from 2:00 p.m. to 3:30 p.m. in room C418,Roman MESTRE(with Rémy Odry, EconomiX), "Monetary Policy and Business Cycle Synchronization in Europe"
• Wednesday, February 24, and Thursday, February 25, 2021,Webinar  WINIR-sponsored event Repugnant Behaviors organized by Alain MARCIANO 
• Friday, November 6, 2020, at 2 p.m.,Webinar: Hospinnomics & Montpellier Research Economics: Technical workshop on medicines.
• Revealed Preference of Decision-Makers for Priority Setting in Health Technology Assessment: Evidence from the French National Health Authority Committees.Pauline KERGALL, Erwan AUTIN,Marlène GUILLON, Valérie CLEMENT.
• 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 2:00 p.m. to 3:30 p.m. in C 415: David GINDIS, University of Hertfordshire, Organization, 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 2:00 p.m. to 3:30 p.m. in C 415, Pierre-Henri MORAND, University of Avignon, LBNC, will present 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, University of Paris 2, CRED, "Public Law Enforcement Under Ambiguity," co-authored with B. Chopard.
• Friday, May 17, 2019, from 2:00 p.m. to 3:30 p.m. in C 315:Mehrdad VAHABI(Paris 13 Nord University) will present a paper entitled "A Positive Theory of the Predatory State."
• Friday, March 22, 2019, from 2:00 p.m. to 3:30 p.m., Room C 415:Wilfried SAND-ZANTMAN(TSE, University of Toulouse 1 Capitole) "The Ownership of Data," co-authored 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 by allowing the rights to be traded ex-post and discuss how this impacts both efficiency and rent sharing.
• Friday, February 8, 2019, from 2:00 p.m. to 3:30 p.m. in Room C 415:Enrico COLOMBATTO(University of Turin),"How to apply the key notions of anarcho-capitalism to today's world" (The two keys to liberal thought and their relevance today).
• Friday, January 25, 2019, from 2:00 p.m. to 3:30 p.m.:Stéphane GONZALEZ(GATE-LSE, Jean Monnet University, 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, from 2:00 p.m. to 3:30 p.m.Laurent LINNEMER, "Partial exclusivity" inC315Download the article
• Thursday, February 8, from 2:00 p.m. to 3:30 p.m.:Bruno JULLIEN, "Privacy Protection and Consumer Retention" Download the article
• Thursday, March 29, from 2:00 p.m. to 3:30 p.m. in C 215: David MARTIMORT, (PSE, EHESS), "Precaution, Information, and Time-Consistency: Some Preliminary Thoughts on the Precautionary Principle" (paper co-authored with Louise Guillouet, Columbia).
• Friday, April 6, from 2:00 p.m. to 3:30 p.m.:Pierre-Yves GEOFFARD, (PSE, CNRS), "Striving now to shirk later? Intertemporal moral hazard in car insurance (paper co-authored with Alexandre Godzinski)."
• Thursday, May 3, from 2:00 p.m. to 3:30 p.m., Room C 318:Benoît MULKAY(MRE, UM) "How does competition affect the innovation behavior of French firms?"
• Thursday, May 24, from 2:00 p.m. to 3:30 p.m., Room C415:Yann GIRAUD(THEMA, University of Cergy), "Economics and Engineering: Institutions, Practices, and Cultures."
• Thursday, June 7, from 2:00 p.m. to 3:30 p.m., Room C315,Marc DUBOIS(MRE, UM), "Competitive Imbalance of Heterogeneous Teams in Closed Leagues and Dominance Criteria" with Jean-Pascal Gayant (University of Le Mans) and Nicolas Le Pape (University of Caen Basse-Normandie)Download the article
• Friday, September 28, from 2:00 p.m. to 3:30 p.m., Room C315:Lionel THOMAS(CRESE, University of Franche-Comté, Besançon), "Optimal payment system for hospitals under adverse selection, moral hazard, and limited liability," co-authored with François Maréchal.
• Friday, October 19, from 2:00 p.m. to 3:30 p.m., Room C 315:Marlène GUILLON(MRE, University of Montpellier), "Efficiency of primary health centers in rural areas in Mongolia."
• Friday, November 16, from 2:00 p.m. to 3:30 p.m.:Harro MAAS(University of Lausanne, Walras Pareto Center), "Mental Accounting Matters, and it is a Practice: Reflections from History."