ECONOMIE COMPORTEMENTALE

  Organisation : Noémi Berlin et Olivier Renault

À VENIR

JEUDI 25 AVRIL 2024
Emmanuel Petit (BSE, U. de Bordeaux) :
JEUDI 30 MAI 2024
Ludovic Julien :

ARCHIVES

JEUDI 04 AVRIL 2024
Béatrice Bellini : L'Eco-score comme affichage environnemental pour favoriser l’intention de payer un surprix pour un produit textile éco-responsable

Co auteur : Anthony Chung (ESCE)

Abstract : L’industrie textile est l’une des industries les plus polluantes au monde, et est responsable de 20 % de la pollution d’eau potable, 10 % des émissions de gaz à effet de serre et à l’origine d’une quantité importante de déchets. Cependant, le rapport de Forbes de 2019 révèle que, même si 52 % des consommateurs souhaitent que l'industrie de la mode adopte des pratiques plus durables, seuls 29 % seraient prêts à payer plus cher (un surprix responsable) pour des versions des mêmes articles fabriquées de manière plus durable. Bien que des recherches aient étudié les facteurs influençant l’intention de payer un surprix pour des produits alimentaires (Anselmsson, Johansson et Persson, 2007 ; Loureiro, McCluskey et Mittelhammer, 2002 ; Steenkamp, Van Heerde et Geyskens, 2010) ou dans le secteur des services hôteliers (González-Rodríguez, Díaz-Fernández et Font, 2020), aucun article ne traite de l’intention de payer un surprix dans le secteur du textile. A l’ère où les grandes enseignes de fast fashion explosent encore telles que Shein (croissance de 100 % entre 2021 et 2022) de par leurs prix très faibles, il s’avère crucial d’étudier les facteurs qui encouragent les consommateurs à payer un surprix pour un produit textile plus écologique. Nous proposons dans ce papier d’étudier plus particulièrement (1) dans quelle mesure un affichage environnemental, traduit par un Eco-score, influence l’intention de payer un surprix ; et (2) quel(s) niveau(x) de score d’affichage (éco-score A à E) entraîne(nt) une plus grande intention de payer un surprix comparativement à l’absence d’affichage. L’objectif de cet article est de prouver empiriquement que la généralisation d’un affichage environnemental pour les vêtements favorise l’intention de payer un surprix. Pour répondre à cette question, nous mobilisons la littérature sur la théorie du signal (e.g. Boulding et Kirmani, 1993 ; Nabec et al., 2022) et la Value Belief Norm (VBN) (e.g. Bertrandias, Cazes-Valette et Gurviez, 2021). Une collecte de données quantitatives sous la forme d’une expérimentation met au jour les rôles médiateurs de la culpabilité, la perception de l’image verte et les pratiques environnementales de l’entreprise sur la relation entre l’affichage environnemental et l’intention de payer un surprix.

JEUDI 21 MARS 2024
Ina Taneva (Université D'Edimbourg) : Information, Higher-Order Reasoning and Contingent Thinking

Co-écrit avec Brian Rogers.
Abstract: The assumption of rationality and higher-order reasoning about rationality underpins many models of strategic behavior. We investigate the degree to which this assumption holds in a simple incomplete information game and how that depends on the particular informational environment of the game. The project aims to provide a simple framework for identifying higher-order rationality in incomplete information games and test the implications of different types of information structures on the players’ displayed orders of rationality. We have run a lab experiment and collected data from 115 participants across three treatments, holding the basic game fixed and varying the information structure, where information structures across treatments are ranked in terms of contingent thinking difficulty. We are able to obtain within-subject comparisons of the degree to which more difficult information structures impact the levels of rationality of players.

JEUDI 29 FÉVRIER 2024
Claire Rimbaud (U. Dauphine) : Playing Dumb to Look Green

Co-auteurs: Greg Kubitz et Alice Soldà.

Résumé : This paper investigates whether individuals use information complexity as an excuse to remain ignorant so as to behave more selfishly. We study this question in a context where individuals face a trade-off between their monetary payoff and their pro-environmental preferences. We propose that individuals use information complexity as an excuse to make self-serving mistakes, which allow them to behave more selfishly without compromising their pro-environmental image. To test this idea, we conducted an online experiment in which we varied (i) the complexity of the information regarding the environmental impact of a donation and (ii) whether there is a trade-off between participants' selfish motives and pro-environmental preferences. In line with our hypothesis, we found that participants make more mistakes when information is complex, but even more so when there is a trade-off between their monetary payoff and their pro-environmental preferences. Our findings suggest that pro-environmental individuals do 'play dumb' when doing so gives them an excuse to behave more selfishly without compromising their image

JEUDI 08 FÉVRIER 2024
Denis Charles (SCOR) : Behavioral drivers of individuals' Term Life Insurance Demand: evidence from a Discrete Choice Experiment

Co-auteures : Magali Dumontet, Johanna Etner, Meglena Jeleva

Abstract : In the term life insurance market, individuals pay a premium covering their death. Insurers secure a certain amount of money that will be paid to beneficiary(ies) in case of death of the policyholder. One contract can differ from another in many ways: the level of private information asked to applicants, the presence of riders in the contract or how the claim is paid. Understanding how individuals' demand is influenced by those possibilities is not straightforward. This research question is approached through a Discrete Choice Experiment on a sample representative of the French population. This method permits to estimate individuals’ behavioral characteristics that influence (1) the term life insurance purchasing decision and (2) Willingness to Pay for each feature of the term life insurance contract. The study is valuable for insurers who want to gain insights into consumers' life insurance purchase behavior, especially for professionals who are involved in product development and marketing.

JEUDI 25 JANVIER 2024
Florent Dubois (Université de Turin) : A test for recognising bias in educational contexts

Co-auteurs: Pietro Biroli, Marina Della Giusta

Abstract: Bias, both conscious and unconscious, perpetuates inequalities within educational settings, impacting teachers and students alike and it is important therefore to establish the extent to which teachers can recognise it so they can activate mitigation. We develop an image-based bias recognition test (IBRT) in which we ask teachers to rate the presence of stereotypes in 20 randomly selected images from a pool of 100 drawn from educational catalogues used in textbooks and systematically relate their ratings and comments to established measures of both implicit bias, the Implicit Association Test (IAT) and explicit bias as declared in and self-reported social values from the European Social Survey (ESS).

JEUDI 21 DÉCEMBRE 2023
Moustapha Sarr : Social norms, parents' food beliefs and choices: an experiment

Co écrit avec Noémi Berlin et Tarek Jaber Lopez
Abstract: In a lab-in-the-field experiment, we investigate the influence of social norms on parents’ beliefs regarding the nutritional quality of food items and their subsequent food choices. We use a 3x2 between-subject experimental design, where we vary two factors: 1-the information provided (control vs. descriptive norm vs. an opinion) and 2-the recipient of the food decisions made by parents (for their own child vs. for another random child). A total of 300 parents report their beliefs about the nutritional score of food items twice and create two sets of food baskets: in a first stage, they respond without any specific information, whereas in a second stage they receive specific information depending on the treatment to which they are assigned. Using difference-in-difference estimation, we find that only the descriptive norm significantly reduces parents' overestimation rate of items' nutritional quality. "Opinion" significantly improves the nutritional quality of both, the parent's and child’s baskets. In contrast, the descriptive social norm only significantly improves the nutritional quality of parent’s food baskets.

Vincent Lenglin (Université Catholique de Lille) : How Do We Apply Self-Protection to Others?

Co écrit avec Fabrice Le Lec et Rémi Suchon

Abstract: We explore how individuals apply self-protection strategies to both themselves and charitable organizations, focusing on their willingness to pay to reduce the probability of the worst outcome by 10 percentage points across five different probability levels: 0.1, 0.2, 0.5, 0.8, and 1.0. This research, building on Le Lec et al.'s working paper and utilizing Exley's 2016 method, involves four experimental scenarios. Two of these scenarios measure the personal cost individuals are willing to incur to decrease these probabilities by 10 points, either for themselves or for a charity. The other two scenarios investigate the costs individuals are willing to impose on a charity to reduce these probabilities by 10 points, affecting either the charity itself or the individuals. Our very preliminary findings reveal a tendency for individuals to assign higher costs to charities, regardless of whether the risk reduction benefits themselves or the charity. Additionally, we observe a significant impact of the initial probability of experiencing the worst outcome on the willingness to pay, suggesting that the probability weighting function plays a crucial role. However, this propensity to pay or to impose costs appears to be only marginally influenced by the experimental conditions.

JEUDI 23 NOVEMBRE 2023
Fatou Fall (LEDa-DIAL, Université Paris-Dauphine-PSL) : Does others’ health count for peanuts? Health, market returns, and pro-sociality

Authors : Gashaw T. Abate(IFPRI) , Tanguy Bernard (BSE , Université de Bordeaux) , Joshua Deutschmann (Development Innovation Lab, University of Chicago) , Fatou Fall (LEDa-DIAL, Université Paris-Dauphine-PSL)
Abstract : Why would farmers invest in technologies that protect the health of their consumers if there are no market rewards associated with food safety? We work with a sample of small-scale groundnut farmers in Senegal, where aflatoxin contamination is a major health concern. We rely on a lab-in-the-field experiment where we elicit their willingness to pay (WTP) for aflatoxins detection in groundnut powder dedicated to their own consumption, donation to local children, or sales at a premium. We find lower WTP for donation, albeit limited to farmers with less than medial reported level of altruism. In turn, a randomly allocated information treatment on the health consequences of aflatoxins increases overall WTP for donated groundnuts and eliminates the effect of altruism.

JEUDI 09 NOVEMBRE 2023
Pauline Gandré : Communication on macroeconomic disaster risk: an experiment with finance professionals

co-écrit avec Brice Corgnet and Camille Cornand

Résumé: 

Since Barro (2006), the macro-finance literature has shown that accounting for rare macroeconomic disasters helps explain various long-lasting empirical puzzles in financial asset markets through the critical role of disaster risk perceptions. However, individual macroeconomic disaster risk perceptions and their consequences for financial investment have never been directly measured at the microeconomic level.

To fill this gap and investigate whether communication on macroeconomic disaster risk can affect individual perceptions and financial investment decisions, we ran an online experiment on 345 French finance and macroeconomics professionals. We randomly assigned participants to three distinct informational treatments about the past frequency of macroeconomic disasters in a given historical sample (low-precision treatment, high-precision treatment, and salient treatment). We asked participants to estimate this frequency prior and posterior to the treatment and to allocate a sum of money between a risk-free asset and a risky asset whose returns depend on the possibility of a macroeconomic disaster.

We find that, on average, participants significantly overestimate the past frequency of macroeconomic disasters before information provision. At the intensive margin, participants decrease their frequency estimate and uncertainty and increase investment in the risky asset following the treatments. At the extensive margin, the high-precision treatment increases the probability of updating the prior relative to the two other treatments. We also investigate the role of individual variables such as gender, financial literacy score, confidence in prior estimate, and sector of activity.

JEUDI 19 OCTOBRE 2023
Sabina Teyssier (INRAE, GAEL) : Beef or fish at the restaurant: information about CO2 emissions and social influence

Abstract: We investigate individuals’ food choices at the restaurant with information about the environmental impact of the meals. We ask whether information about CO2 emissions of the main meal on a restaurant menu alters the choice of guests between beef and sea trout under high or low social influence of other guests around the table. We followed a 2 x 2 design differentiated by the information given or not and the high or low social influence. For guests with the information, they could read on the menu that consuming beef participates more to climate change than consuming sea trout; guests without information had only the meals presented on the menu. For guests with the high social influence, they were allowed to discuss before making their choice of the main meal whereas for guests with the low social influence, they had to choose their main meal without communication with other people around the table. We also asked guests to reply to a short questionnaire about their meal preferences and their expectations regarding other guests’ food choice of the main meal, i.e. the social norm. Experiments were run at the Living lab of the Institut Paul Bocuse in Lyon, France, between April and June 2022. In total, 486 guests participated. The results show that the guests’ normative beliefs about the choice of fish as being socially acceptable increase when they receive the information about CO2 emissions which in turn significantly affects the choice of fish. The fish is slightly more chosen when the guests receive the environmental information and are allowed to discuss before ordering, but this effect is not significant. 

JEUDI 05 OCTOBRE 2023
Aurélie Bonein (Université de Rennes 1, CREM) :
JEUDI 25 MAI 2023
Thomas Buser (Université d'Amsterdam, Tinbergen Institute) : Competitiveness and negative reciprocity are strong predictors of political preferences

Abstract: I analyze Dutch panel data that contains rich information on voting, political opinions, and personality traits. I show that “adversarial” economic preferences – competitiveness and negative reciprocity – but also “prosocial” preferences including trust and altruism are strong predictors of political preferences, with predictive power similar to household income. Past studies have shown that standard personality traits are reliably linked to political preferences. I replicate these associations and show that competitiveness and social preferences predict voting independently from – and often with larger effect sizes than – these other traits. The complex Dutch party landscape allows me to go further than a simple left-right comparison to show that associations between individual traits and political preferences are non-linear along the left-right spectrum. Competitiveness predicts voting for center-right, economically liberal parties whereas social preferences are stronger predictors for voting for the populist far right. Put differently, competitiveness predicts voting for parties that are economically conservative whereas negative reciprocity and low pro-sociality predict voting for parties that are socially conservative.

JEUDI 11 MAI 2023
Brice Corgnet (EM Lyon Business School) :
JEUDI 13 AVRIL 2023
(Salle 301-302)
Claire Mollier : Gender, competitiveness, and reaction to defeat
JEUDI 09 MARS 2023
(ANNULÉ)
Aurélie Bonein (Centre de Recherche en Economie et Management CREM) : Depletion of Willpower and Contribution in a Public Good Game

Co-écrit avec Laurent Denant-Boèmont

Abstract:
We investigate how ego depletion might impact cooperation levels for individuals. To this end, we propose a theoretical model in which an individual contributes to a public good in a VCM (Voluntary Contribution Mechanism) game after having been exposed to ego depletion. This model first aims at specifying the main parameters of the depletion function at the individual level and, second, to provide a theoretical relationship between individual characteristics of the depletion function and the contribution level. We use this model to build an economic experiment where participants enter a VCM game after having been exposed to ego depletion. Our experimental treatments vary in the degree of ego depletion to isolate the effect of this latter on contribution. First experimental results highlights the impact of self control in the level of contribution in a one-shot public good game. In particular, we observe a strong and negative relationship between ego-depletion and the level of cooperation while the initial level of willpower fails to explain the level of contribution.

MARDI 07 MARS 2023
(En distanciel de 16h à 17h)
Emmanuelle Augeraud Veron (Université de Bordeaux, BSE) : Pressions Anthropiques et Mutations Génétiques
JEUDI 16 FÉVRIER 2023
Nina Rapoport (Paris 1/PSE) : Gender Identity and Competition : A Virtual Reality Experiment

Abstract:
The study of gender differences in competitiveness has been a widely explored topic in experimental economics, with a focus on its contribution to the gender wage gap. Recent research in psychology has employed virtual reality (VR) to manipulate individuals' embodiment in bodies with different characteristics, including gender. This has been shown to alter the perception of the self, with participants who underwent a 'gender swap' via VR identifying more with the opposite gender and exhibiting self-attribution of traits stereotypically associated with that gender, such as competitiveness. To test whether these self-reported results on attitudes extend to behavior, I examine the impact of such a virtual “gender swap” on selection into competitive environments in the lab. Although the VR intervention impacted several secondary outcomes, including overconfidence, it did not have a significant effect on the gender gap in tournament selection. The results have implications for the study of embodiment interventions and gender differences in competition.

JEUDI 02 FÉVRIER 2023
(Salle 101)
Carole Treibich (Laboratoire d'Economie Appliquée de Grenoble GAEL) : Disentangling peer effects in transportation mode choice: the example of active commuting

Coécrit avec Mathieu Lambotte, Anna Risch et Sandrine Mathy (GAEL)

Résumé : We investigate the role of peer effects in 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 Alps in February 2020. We apply linear and non-linear models of peer effects on active modal choice, untangling the role of conformism and strategic complementarity in social influence. We show that given our data, a linear local-average specification is the preferred empirical model of peer effects and we estimate strong and significant endogenous peer effects.

JEUDI 26 JANVIER 2023
(Horaire exceptionnel 10h30 -11h30)
Charlotte Saucet (Panthéon-Sorbonne) : Motivated Skepticism

Résumé : We experimentally study how individuals read strategically-transmitted information when they have preferences over what they will learn. Subjects play disclosure games in which Receivers should interpret messages skeptically. We vary whether the state that Senders communicate about is ego-relevant or neutral for Receivers, and whether skeptical beliefs are aligned or not with what Receivers prefer believing. Compared to neutral settings, skepticism is significantly lower when it is self-threatening, and not enhanced when it is self-serving. These results shed light on a new channel that individuals can use to protect their beliefs in communication situation: they exercise skepticism in a motivated way, that is, in a way that depends on the desirability of the conclusions that skeptical inferences lead to.

JEUDI 15 DÉCEMBRE 2022
Magali Dumontet :
JEUDI 17 NOVEMBRE 2022
Fabrice Le Lec (Lille Economics and Management (UMR CNRS 9221)) : An experimental investigation of preventive behavior

Co-auteurs : Vincent Lenglin (Anthropo-Lab, Université Catholique de Lille), Joel Santos (IESEG, EDHEC)

JEUDI 10 NOVEMBRE 2022
Helena Fornwagner (University of Exeter, United Kingdom) : Predictably competitive? What faces can tell us about competitive behavior

Co auteurs : Loukas Balafoutas et Brit Grosskopf (University of Exeter, United Kingdom)

JEUDI 20 OCTOBRE 2022
Workshop on social behaviour and discrimination
JEUDI 06 OCTOBRE 2022
(11h, salle G110 et en visio)
Denis Charles (CRIEF) : Information disclosure and mortgage insurance choice under substandard risk
JEUDI 07 AVRIL 2022
Loukas Balafoutas (University of Innsbruck) : Conflict in the pool: A field experiment
JEUDI 24 MARS 2022
Marie Pierre Dargnies (Université Paris Dauphine) : Trust in an expert depending on the expert's gender and the individual's characteristics: An experiment
JEUDI 10 MARS 2022
(11h-12h)
Alexandra Baier and Tarek Jaber-Lopez : Just saying sorry : an experiment on ostracism
JEUDI 24 FÉVRIER 2022
(11h-12h)
Andrea Guido : (Im)Moral suasion in collective action problems: evidence from a long-term experiment
JEUDI 10 FÉVRIER 2022
(11h-12h)
Paolo Crosetto : Labels vs incentives: testing nutritional policies in the lab
JEUDI 27 JANVIER 2022
(11h-12h)
Fabio Galeotti : Information Acquisition and Social Norm Information
JEUDI 16 DÉCEMBRE 2021
(11h-12h)
Maria José Montoya Villalobos : Ambiguity attitudes and pro-environmental behavior: an experiment
JEUDI 18 NOVEMBRE 2021
Sarah Zaccagni (University of Copenhagen, Department of Economics and CEBI (Center for Economic Behavior and Inequality)) : The impact of gender composition and formation rule on teams' performance: evidence from an RCT in Italian high-schools
JEUDI 28 OCTOBRE 2021
François Langot (Laboratoire du GAINS, Université du Mans; Senior member of the Institut Universitaire de France; Associated Professor at Paris School of Economics; Manager of the Macroeconomic Observatory (Cepremap & ENS-Paris)) : Preferences and Covid-19 Vaccination Intentions
JEUDI 17 JUIN 2021
(11h en visio)
Manuel Munoz-Herrera (Social Science Division and Center for Behavioral and Institutional Design, New York University Abu Dhabi) : Social norm change and the erosion of unity
JEUDI 03 JUIN 2021
(11h en visio)
Anna Bernard (Católica Lisbon School of Business & Economics, Lisbonne) : Trust in State Capacity and Support for Redistribution
JEUDI 20 MAI 2021
(11h en visio)
Emmanuel Kemel (Hec Paris, CNRS) : An econometric estimation of Prospect Theory for Natural Ambiguity

en collaboration avec Sofiia Mun (Paris School of Economics)

JEUDI 29 AVRIL 2021
(11h (webseminar))
Sébastien MASSONI (BETA - Université de Lorraine) : Judicial Decision under Ambiguity and Predictive Justiceg

en collaboration avec Vincent Teixeira

JEUDI 15 AVRIL 2021
(En visio à partir de 11h)
Hela MAAFI (CES-Université Paris 1 et LED, Université Paris 8) : The Evolution of Ambiguity Attitudes through Learning
JEUDI 18 MARS 2021
(via Teams à partir de 11h)
Wanda MIMRA (IÉSEG School of Management & LEM, UMR-CNRS 9221) : Incentives for Quality under Selective Monitoring: An Experiment

co-écrit avec Pierre Fleckinger et Christian Waibel.

JEUDI 04 MARS 2021
(via Teams à partir de 11h)
Loukas Balafoutas (Department of Public Finance , University of Innsbruck) : Ostracism and Theft in Heterogenous groups: an experiment
JEUDI 18 FÉVRIER 2021
(via Teams à partir de 11h)
Elisabeth Gsottbauer (Institute of Public Finance, University of Innsbruck) : Discrimination and Immigration: Field Experimental Evidence from Austria
JEUDI 04 FÉVRIER 2021
(via Teams à partir de 11h)
Théo Besson (Laboratoire Parisien de Psychologie Sociale, SPSE, Université Paris Nanterre) : L'effet des labels alimentaires sur les croyances et les comportements de consommation.
JEUDI 21 JANVIER 2021
(via Teams à partir de 11h)
Thibault Gajdos (Laboratoire de psychologie cognitive, CNRS, Aix Marseille Université) : An integrated theory of deciding and acting
JEUDI 07 JANVIER 2021
(via Teams à partir de 11h)
Olivier L'Haridon (CREM, Université de Rennes) : Beliefs and risk perceptions about COVID-19: evidence from two successive French representative surveys during lockdown

écrit en collaboration avec Arthur Attema, Jocelyn Raude, Valérie Seror, The COCONEL Group

JEUDI 03 DÉCEMBRE 2020
(via Teams à partir de 11h)
Alexandre Cambo (EconomiX, IFPEN) : Comportements d’achats des véhicules bas-carbone : une évaluation des freins à leur diffusion via un DCE
JEUDI 19 NOVEMBRE 2020
(via Teams à partir de 11h)
Tarek Jaber-Lopez (EconomiX, Université Paris Nanterre) : The effect of worship: a field experiment on how religious messages affect social behavior

co-écrit avec Loukas Balafoutas, Mehdi Feizi, et Björn Vollan.

JEUDI 05 NOVEMBRE 2020
(via teams à partir de 11h)
Mamadou GUEYE (Université Paris Dauphine) : Information on Pro-environmental Behavior : An Experimental Investigation of waste sorting behavior

co-écrit avec Noémi Berlin

JEUDI 15 OCTOBRE 2020
(11h, Salle G404)
Olivier Renault (EconomiX, Université Paris Nanterre) : Dynamic Decision Making when Ambiguity Attitudes Depend on Past Experience

co-écrit avec Johanna Etner et Meglena Jeleva

JEUDI 01 OCTOBRE 2020
(Salle séminaire 2 bâtiment Max weber)
Tristan Roger (DRM Finance, Universié Paris-Dauphine) : Number sense, trading decisions and mispricing: An experiment

co-écrit avec Patrick Roger et Marc Willinger

JEUDI 05 MARS 2020
Raphaële Préget (INRA, LAMETA) : Nudging and Subsidizing for the Adoption of SmartMeters: A Choice Experiment with French Farmers

co-écrit avec B. Ouvrard, A. Reynaud et L.Tuffery

JEUDI 13 FÉVRIER 2020
(11h00, salle G614)
Oulmann Zerhouni (LAPPS, Université Paris Nanterre) : Au Shaker, et à la cuillère : comment la représentation de l'alcool dans les médias modifie les attitudes envers l'alcool
JEUDI 28 NOVEMBRE 2019
(11h00, en salle G402)
Marie-Pierre DARGNIES (Université Paris Dauphine) : Do we follow the recommendations of experts? An experiment
JEUDI 14 NOVEMBRE 2019
Aurore Pélissier (LEDI - Université Bourgogne Franche Comté) : It is written in our genes! What we would like to know?
JEUDI 24 OCTOBRE 2019
Mamadou Gueye (PSL - LEDa - Université Paris Dauphine) : Social Preferences and Coordination : An Experiment

co-écrit avec Raphael Soubeyran et Nicolas Querou

JEUDI 10 OCTOBRE 2019
Florent Fremigacci (EconomiX) : Diving into troubled waters : Performance management in the French Public Employment Service

Co-écrit avec Fabienne Llense et Jekaterina Dmitrijeva

JEUDI 26 SEPTEMBRE 2019
Apolline Niérat (CREAM, Université Rouen Normandie) : Recycling: contributing to the stock of environmental quality
JEUDI 19 SEPTEMBRE 2019
(11h00 - G502 (Bât. Allais))
Marion Dupoux (Université de Gotenborg - Suède) : Cooperation in heterogeneous nonlinear social dilemmas
JEUDI 27 JUIN 2019
(de 11h00 à 12h15)
Elisabeth Tovar : Profit vs. morality: how fair is labour market discrimination? Results from questionnaire-experimental evidence
JEUDI 13 JUIN 2019
Stefano Palminteri (Laboratoire de Neurosciences Cognitives (INSERM, ENS) ) : The construction and deconstruction of irrational preferences through range-adapting reinforcement learning
JEUDI 09 MAI 2019
(G107)
Remi Yin (PSE) : Betting against yourself for weight-loss: a model and an experiment
JEUDI 18 AVRIL 2019
Natalie Rigal (Clipsyd, Université Paris Nanterre) : Approche transactionnelle et expérimentale de la construction des comportements alimentaires durant l'enfance
JEUDI 04 AVRIL 2019
(11h salle 614)
Wanda Mimra (IESEG Business School) : A Franc Less for a Pound More: (Price) Discrimination and the Value of Privacy

Price discrimination based on consumers' personal data has become common practice in many markets. We analyze the willingness to share personal data when this data is used for pricing in subsequent markets. In a laboratory experiment, participants can sell a bundle of personal data. Participants are categorized based on the content of their personal data and receive category-dependent payoffs in a subsequent stage. The experimental variations change category-dependent the payoff structure. We find no effect of subsequent price discrimination on the general willingness to sell personal data. A significant change in the price of personal data is only observed under strong negative price discrimination. Furthermore, we find important gender differences in data selling price adjustments and the role of underlying privacy concerns.

JEUDI 21 MARS 2019
(10h30, Salle G614)
Fanny Claise (EconomiX) / Charles Davenne (EconomiX) : L’estimation des consentements à payer des agriculteurs pour un changement de pratiques agricoles / Assurance « standard » ou pot commun? Une étude expérimentale
JEUDI 14 FÉVRIER 2019
Nina Zerra (Fondation Médéric Alzheimer) : Raising LTC risk awareness and its financial planning : a randomized controlled experiment
JEUDI 31 JANVIER 2019
(11h00, salle G614)
Antoine Nebout (ALISS UR1303, INRA, University Paris-Saclay) : Hunger Games II: Does Hunger Affect Risk Preferences?

co-écrit avec Lydia Ashton (University of Wisconsin-Madison. Wisconsin Institute for Discovery) et Emmanuel Kemel (HEC Business School Paris & GREGHEC, CNRS)

Classic economic theory focuses on static and stable preferences. However, there is growing evidence that cognitive, emotional and visceral states (e.g. stress, hunger) can mediate behavioral biases and shape preferences (DellaVigna, 2009). In particular, Symmonds & al. (2010) and Levy & al. (2013) provide evidence that risk attitudes fluctuate with metabolic states. In this paper, we follow this stream of research and propose an experimental design with a specific hunger manipulation mechanism and an original risk attitude elicitation tool that allows parametric estimation of the components of Prospect Theory (PT) by using a convex budget line (CBL) allocation methodology (Choi & al., 2007).

Participants (N=107, Xlab Berkeley) were required to fast for at least three hours before the experiment and completed a high-protein shake tasting activity before/after (randomly assigned) the risk attitude elicitation questionnaire. Our results suggest a limited impact of hunger on the utility function and loss aversion parameters. However, we find that hungry (fasting) participants display significantly more risk aversion (curvature of the utility function) and probability distortion (inverse S shape of the probability weighting function) than the satiated participants. These results are consistent with and extend the existing empirical evidence on satiation and risk attitudes and feed the debate on the impact of hunger on economic decision

JEUDI 17 JANVIER 2019
(salle 107)
Giuseppe Attanasi (GREDEG, Université de Nice) : Disclosure of Belief-Dependent Preferences in a Trust Game

co-écrit avec Pierpaolo Battigalli (Bocconi University and IGIER, Milan) & Rosemarie Nagel (ICREA, Universitat Pompeu Fabra, Barcelona GSE)

JEUDI 29 NOVEMBRE 2018
(G614-A)
Romeo Fontaine (INED) : Aide informelle et demande d'assurance dépendance
JEUDI 15 NOVEMBRE 2018
(G614)
Lisette Ibanez (LAMETA, INRA) : What did you do before? Moral (in)consistency in pro-environmental choice
JEUDI 08 NOVEMBRE 2018
(10h - 12h15, G614)
Marie Pierre Dargnies (Université Paris Dauphine) | Léontine Goldzahl (Edhec Business School) : Speed and information in financial trading: Experimental design | Health Insurance decision: a theoretical and experimental investigation

- de 10h00 à 11h00

Marie Pierre Dargnies (Université Paris Dauphine) présentera un protocole expérimental sur le thème :

"Speed and information in financial trading: Experimental design"

- de 11h00 à 12h15

Léontine Goldzahl (Edhec Business School) présentera un article intitule:

"Health Insurance decision: a theoretical and experimental investigation"

avec David Crainich (CNRS, IESEF School of Management), , Florence Jusot (Université Paris Dauphine, PSL), Doriane Mignon (Université Paris Dauphine, PSL)

JEUDI 18 OCTOBRE 2018
(G614)
Béatrice Boulu-Reshef (CES, Université Paris 1) : Signaling Trustworthiness with Impact Investments: An Experimental Study

Béatrice Boulu-Reshef, Graciela Kuechle, Luise Rohland

Entrepreneurs may differentiate their ventures and attract investments by advertising that their firm produces positive externalities for society. Such signaling of entrepreneurs’ trustworthiness may be a prevalent practice in these investment opportunities which are casually referred to as “impact investment’’ by practitioners. This paper investigates this possible signaling by studying the interplay of altruistic, fiscal, and reputational motives that characterizes these investments in a laboratory experiment. In the experiment, the investor may transfer money to the entrepreneur, who may then invest some, all or none of this money onto a conventional investment opportunity or an impact investment opportunity involving a spillover, and then decide whether or not to transfer some of the funds back. Entrepreneurs choose a type of investment and their choice is visible to the investors. The results are that the choice alone of an impact project does not increase investors’ transfers to impact investments but a higher spillover does as long as the tax from possible gains is not too high. Pro-social entrepreneurs do not announce higher rates of spillovers. In the presence of tax, entrepreneurs internalize that a too high spillover could scare away investors. The experiment shows that the presence of impact investments helps investors coordinate onto different investment types. It identifies the mechanisms behind investors believing that socially-oriented entrepreneurs will be more trustworthy. Specifically, as investors’ transfers react to the effective societal impact and not to the mere project type, making that quantitative information visible allows investors to differentiate between investment opportunities.

JEUDI 04 OCTOBRE 2018
(G614)
Carole Treibich (GAEL, Université Grenoble Alpes) : Risk preferences and HIV/AIDS: Evidence from Senegalese female sex workers

We investigate the role of preferences for risk on health and sexual behaviours of 805 female sex workers in Senegal, of whom 441 were surveyed twice at a two-year interval. Risk preferences were measured using simple incentivised risk elicitation tasks as well as domain specific risk-taking scales. We find that the experimental measure was poorly correlated with self-reported measures. We further find that risk preferences were highly stable across domains and fairly stable over time. Our main result indicates that risk preferences measured in the lab are a main predictor of sex workers' health and behaviours. We find that risk averse sex workers demand more preventive services and are less likely to engage in risky sex and, as a result, are less likely to be infected with sexually transmitted infections, including HIV/AIDS. Hence, our results conrm the role of risk preferences in the spread of HIV/AIDS epidemic.

JEUDI 14 JUIN 2018
(11h30)
Vincent de Gardelle (CES, CNRS, Université Paris 1) : Confidence as a common currency for learning
JEUDI 31 MAI 2018
Bertrand Chopard (LIRAES, Université Paris Descartes) : Public enforcement of law and ambiguity
JEUDI 24 MAI 2018
(à 11h)
Jonathan Sicsic (Université Paris-Descartes) : Choice certainty and deliberative thinking in discrete choice experiments. A theoretical and empirical investigation

En collaboration avec D.A. Regier et V. Watson

JEUDI 19 AVRIL 2018
Justine Jouxtel (PSE, Paris 1) : Voluntary Contribution of Time: time-based incentives in a VCM experiment
JEUDI 05 AVRIL 2018
Patricia Crifo (EconomiX) : Wages and CSR: entrenchment or ethics?

Co-écrit avec MA Diaye et S. Pekovic

JEUDI 08 MARS 2018
Frédéric Isel (MoDyCo, Université Paris Nanterre) : L'apport de la neuroimagerie dans l'étude du processus de prise de décision en situation d'incertitude
JEUDI 01 FÉVRIER 2018
Pascale Bazoche (SMART-LERECO, INRA) et Sylvaine Poret (ALISS, INRA) : What do trout eat : acceptance of insects in animal feed
JEUDI 18 JANVIER 2018
Jean-François Verlhiac (LAPPS, UFR SPSE, Université Paris Nanterre) : Do we really have to be afraid of a threat in order to act? The mediating role of fear in the persuasive effect of the vividness and framing of a message on personal motivation and the effectiveness of a diabetes screening program
JEUDI 07 DÉCEMBRE 2017
(11h00)
Elias Bouacida (doctorant à PSE, ATER à Université Paris Nanterre) : Pay-for-Certainty, a Methodology and an Experiment to Assess Indifference and Incompleteness
JEUDI 23 NOVEMBRE 2017
(10h00)
Edouard Civel : Perception et Fiabilité des Labels verts
JEUDI 09 NOVEMBRE 2017
(11h00 en salle 614)
Kate Farrow (EconomiX) : Designing more effective norm interventions: The role of valence.
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