Research
"On fait la science avec des faits, comme on fait une maison avec des pierres ; mais une accumulation de faits n’est pas plus une science qu’un tas de pierres n’est une maison." Henri Poincaré, 1908, 'La science et l'hypothèse', Flammarion (ed. 1917), p.168.
Works in Progress
Galbiati R., Henry E., Jacquemet N., Lobeck M. How Laws Affect the Perception of Norms: Empirical Evidence from the Lockdown. CEPR Discussion Paper n°15119. September 2020. [free download]
Additional content. Executive summary / Résumé non technique. || Coverage by Vox.eu
Galbiati R., Henry E., Jacquemet N. Learning to Cooperate in the Shadow of the Law. Revised in June 2020 [slides]
[Release notes] Revised version of Sc Po Economics DP n°2019-06, supersedes "Learning, Spillovers and Persistence: Institutions and the Dynamics of Cooperation", CEPR DP n°12128.
Hergueux J., Jacquemet N., Luchini S., Shogren J.F., Leveraging the Honor Code for Nature: Public Good Contributions under Oath, Revised in October 2020.
[Release notes] revised version of PSE WP n°2016-22.
Jacquemet N., Luchini S., Shogren J.F., Watson V. Discrete Choice under Oaths. CES WP n° 2019.07, April 2019 [slides]
[Release notes] An earlier version previously circulated under the title: "Using Commitment to Improve Choice Experiment Survey Responses".
Fortin B., Jacquemet N., Shearer B. Labour Supply, Service Intensity and contract choice: Theory and Evidence on Physicians, Revised in June 2020 [Slides]
[Release notes] Revised version of CRREP WP n°2019-05, IZA DP n°5188, CIRANO WP n°2010s-40 and CIRPEE WP n°10-34.
Additional content. Executive summary / Résumé non technique || Coverage by Au fil des évenements, Contact-ULaval.
[Release note] An earlier version previously circulated as How Wages Affect Corruption Behavior: an Experimental Investigation of Delegation Consequences, GATE WP n°2005-06.
Published papers
(a list of selected publications is available here)
Jacquemet N., James A., Luchini S., Murphy J., Shogren J.F. Do Truth-Telling Oaths Improve Honesty in Crowd-Working?, PloS ONE, forthcoming. [free download]
[Release notes] Supersedes "Lying and shirking under oath", Economic Science Institute WP n°278
Replication material. Experimental instructions.
Jacquemet N., Luchini S., Malézieux A., Shogren J.F. (2020). Who’ll stop lying under oath? Empirical evidence from Tax Evasion Games, European Economic Review, Vol. 20, pp. 103369 (lead article). [free download] [slides]
[Release notes] Revised version of TARC Discussion Paper n°027-19.
Replication material. Experimental Instructions [French] || Data and programs.
Additional content. Résumé non technique.
Jacquemet N., Luchini S., Malézieux A., Shogren J.F. (2019). A psychometric investigation of the personality traits underlying individual tax morale. The B.E. Journal of Economic Analysis and Policy, Vol. 19(3) [free download]
[Release notes] Also available as TARC Discussion Paper n°024-19.
Replication material. Screen shots of the experiment decision screens.
Edo A., Jacquemet. N., Yannelis C. (2019). Language Skills and Homophilous Hiring Discrimination: Evidence from Gender- and Racially-Differentiated Applications. Review of Economics of the Household, Vol. 17(1), pp. 349–376 [free download] [slides]
[Release notes] Revised version of CES WP n°13-58.
Replication material. Translated resumes || Original resumes in french.
Additional content. Video: #OnVautMieuxQueCa, Talk at CEPREMAP || Executive summary / Résumé non technique || Coverage by The Economist, Atlantico.fr, Alternatives Economiques, Les Echos.fr, Le Monde (1), A.M.A.R.E., Emploi-Parlonsnet, Le Parisien.fr, Stylist, Le Monde (2), BBC.
Jacquemet N., Luchini S., Rosaz J., Shogren J.F. (2019). Truth-Telling under Oath. Management Science, Vol. 65 (1), pp. 426-438 [free download] [slides]
[Release notes] Revised and extended version of CES WP n°2015-68.
Replication material. Experimental instructions.
Additional content. TEDx talk.
Galbiati R., Henry E., Jacquemet N. (2018). Dynamic effects of enforcement on cooperation. Proceedings of the National Academy of Sciences, Vol. 115 (49), pp. 12425-12428 [free download].
Additional content. Executive summary / Résumé non technique.
Jacquemet N., Luchini S., Shogren J.F., Zylbersztejn A. (2018). Coordination with Communication under Oath. Experimental Economics, Vol. 21 (3), pp. 627-649 [free download] [slides]
[Release notes] Revised and augmented version of GREQAM WP n°2011-49.
Replication material. Experimental instructions. Supplementary Material. Neutral Announcements vs Promises.
Additional content. TEDx talk || Executive summary / Résumé non technique || Coverage by Le Monde.
Goussé, M., Jacquemet N., Robin J-M. (2017). Marriage, Labor Supply, and Home Production. Econometrica, Vol. 85 (6), pp. 1873-1919 [free download] [slides]
[Release notes] Revised version of CIRPEE WP n°2015-68.
Goussé, M., Jacquemet N., Robin J-M. (2017). Household Labour Supply and the Marriage Market in the UK, 1991-2008. Labour Economics, Vol. 41, pp. 131-149 [free download] [slides]
[Release notes] Revised and augmented version of CeMMAP WP n°07-13, untitled Assortative Matching and Search with Labor Supply and Home Production, superseding Marriage with Labour supply, CES WP n°2011-50.
Additional content. Executive summary [1] [2] / Résumé non technique.
Jacquemet N., James A., Luchini S., Shogren J.F. (2017). Referenda under Oath. Environmental & Resource Economics, Vol. 65(3), pp. 479-504 [free download] [slides]
[Release notes] Revised and augmented version of GREQAM WP n°2010-15.
Replication material Experimental instructions.
Additional content. TEDx talk || Executive summary / Résumé non technique.
Le Lec F., Alexopoulos T., Boulu-Reshef B., Fayant M-P, Zenasni F., Lubart T., Jacquemet N. (2017). Courtship behavior: “The Out-of-my-league effect”. Behavioral and Brain Sciences, Vol. 40, e32 [free download].
Hanaki N., Jacquemet N., Luchini S., Zylbersztejn A. (2016). Fluid intelligence and cognitive reflection in a strategic environment: evidence from dominance-solvable games. Frontiers in Psychology, Vol. 8, Article 1188 [free download] [slides].
Additional content. Executive summary / Résumé non technique.
Hanaki N., Jacquemet N., Luchini S., Zylbersztejn A. (2015). Cognitive ability and the effect of strategic uncertainty. Theory and Decision, Vol. 81(1), pp. 101-122 [free download]
[Release notes] Also available as GATE WP n°2015-29, revised version of AMSE n°2014-58; an earlier version previously circulated as Bounded rationality and strategic uncertainty in a simple dominance solvable game, University of Western Australia WP n°13-14.
Additional content. Executive summary [1] [2] / Résumé non technique.
Hergueux J., Jacquemet N. (2015). Social Preferences in the online laboratory: A randomized Experiment. Experimental Economics, Vol. 18(2), pp. 252-283 [free download] [Slides]
[Release notes] Revised and augmented version of CES WP n°2012-70.
Supplementary Material. Results from companion treatments.
Additional content. Talk at Berkman Center || Executive summary / Résumé non technique.
Jacquemet N., Zylbersztejn A. (2014). What drives failure to maximize payoffs in the lab? A test of the inequality aversion hypothesis. Review of Economic Design, Vol. 18(4), pp. 243-264 [free download]
[Release notes] Revised and augmented version of CES WP n°2011-36.
Replication material. Experimental instructions.
Jacquemet N., Zylbersztejn A. (2013). Learning, words and actions: experimental evidence on coordination-improving information. The B.E. Journal of Theoretical Economics, Vol. 13(1), Contributions pp. 215-247 [free download] [slides]
[Release notes] Revised version of CES WP n°2010-64.
Replication material. Experimental instructions.
Jacquemet N., Koessler F. (2013). Using or Hiding Private Information? An Experimental Study of Zero-Sum Repeated Games with Incomplete Information. Games and Economic Behavior, Vol. 78(1), pp. 103-120 [free download] [slides]
[Release notes] Revised version of CES WP n°2011-02.
Replication material. Experimental instructions. Supplementary material. Additional statistical analysis.
Additional content. Executive summary / Résumé non technique.
Jacquemet N., Joule R-V., Luchini S., Shogren J.F. (2013). Preference Elicitation under Oath. Journal of Environmental Economics and Management, Vol. 65(1), pp. 110–132 [free download] [slides]
[Release notes] Revised and augmented version of CES WP n°2009-43.
Additional content. TEDx talk || Résumé non technique || Coverage by Economic Logic.
Jacquemet N., Yannelis C. (2012). Indiscriminate Discrimination: A Correspondence Test for Ethnic Homophily in the Chicago Labor Market. Labour Economics, Vol. 19(6), pp. 824-832 [free download] [slides]
[Release notes] Revised version of CES WP n°2011-13.
Replication material. Name survey || Resumes || Data file.
Additional content. Executive summary.
Jacquemet N., Joule R-V., Luchini S., Shogren J.F. (2011). Do people always pay less than they say? Testbed laboratory experiments with IV and HG values. Journal of Public Economic Theory, Vol. 13(5), pp. 857-882 [free download]
[Release notes] Earlier version: GREQAM WP n°2009-44; part of this paper previously circulated as Do French students really bid sincerely?, GREQAM WP n°2008-12.
Replication material. Experimental instructions || Opt-out decision screen.
Additional content. Résumé non technique.
Jacquemet N., James A., Luchini S., Shogren J.F. (2011). Social psychology and environmental economics: a new look at ex ante corrections of biased preference evaluation. Environmental & Resource Economics, Vol. 48(3), pp. 411-433 [free download]
[Release notes] Earlier version: CES WP n°2010-16.
Replication material. Instructions for the HG experiment || Instructions for the IV Experiment || Quizz used in Part 1 || HG Decision Screen || Cheap talk script for the IV experiment || Cheap talk script for the HG experiment.
Jacquemet N., Joule R-V., Luchini S., Shogren J.F. (2009). Earned Wealth, Engaged Bidders? Evidence from a second price auction. Economics Letters, Vol. 105(1), pp. 36-38 [free download]
[Release notes] Earlier version: GREQAM WP n°2008-13.
Replication material. Experimental instructions.
Dumont E., Fortin B., Jacquemet N., Shearer B. (2008). Physicians' Multitasking and Incentives: Empirical Evidence from a Natural Experiment. Journal of Health Economics, Vol. 27(6), pp. 1436-1450 [free download]
[Release notes] Earlier versions: IZA DP n°3229 and CIRPEE WP n°07-45.
Additional content. Résumé non technique.
Fortin B., Jacquemet N., Shearer B. (2008). Policy Analysis in the health-services market: accounting for quality and quantity. Annales d’Economie et de Statistiques, Vol.91-92, pp. 287-313 [free download] [Slides in french]
[Résumé] Cet article propose un cadre à la fois empirique et théorique d'évaluation des réformes des modes de rémunération des médecins. L'accent est mis sur la nécessité de prendre en compte simultanément la qualité et la quantité des services médicaux offerts. L'introduction de la qualité modifie profondément l'analyse tant théorique qu'empirique du comportement d'offre de travail, et donc les méthodes d'évaluation. L'endogéniété du niveau de qualité engendre en particulier des non-linéarités dans la contrainte budgétaire, dans la mesure où le rendement marginal d'une heure de travail dépend de la qualité des actes fournis. A titre d'illustration, ce cadre d'analyse est appliqué à un exemple récent, la réforme du mode de rémunération des médecins spécialistes survenue au Québec (Canada) en 1999. Avant cette date, la plupart des médecins spécialistes du Québec étaient soumis à un système de rémunération à l'acte. En 1999, un système de rémunération mixte est introduit, offrant aux médecins un salaire de base (à la journée ou à la demie-journée), indépendant du volume d'actes fourni, ainsi qu'un taux de rémunération à l'acte réduit. Les médecins sont en outre laissés libres de choisir leur mode de rémunération. Les effets théoriques de cette réforme sur la quantité comme la qualité des actes fournis sont dérivés de variations locales des paramètres de rémunération. En présence de telles non-linéarités de la contrainte budgétaire, nous proposons un modèle empirique consistant à discrétiser l'ensemble de choix.
[Release notes] Earlier version: CIRPEE WP n°08-07.
Jacquemet N., Rullière J-L. Vialle, I. (2008). Monitoring optimistic agents. Journal of Economic Psychology, Vol. 29(5), pp. 698-714 [free download]
Replication material. Experimental instructions.
Gabuthy Y., Jacquemet N., Marchand N. (2008). Does Resorting to Online Dispute Resolution Promote Agreements? Experimental Evidence. European Economic Review, Vol. 52(2), pp. 259-282 [free download]
Replication material. Experimental instructions.
Papers in french
D. Fougère, N. Jacquemet. (2019). Inférence causale et évaluation d’impact, Economie et Statistiques, n°510-511-512 [free download] [english version].
[Abstract: Causal Inference and Impact Evaluation] This paper describes, in a non-technical way, the main impact evaluation methods, both experimental and quasi-experimental, and the statistical model underlying them. In the first part, we provide a brief survey of the papers making use of those methods that have been published by the journal Economie et Statistique / Economics and Statistics over the past fifteen years. In the second part, some of the most important methodological advances to have recently been put forward in this field of research are presented. To finish, we focus not only on the need to pay particular attention to the accuracy of the estimated effects, but also on the requirement to replicate evaluations, carried out by experimentation or quasi-experimentation, in order to distinguish false positives from proven effects.
Jacquemet N., Luchini S., Malézieux A., Shogren J.F. (2017). L'évasion fiscale est-elle un trait de personnalité ? Une évaluation empirique des déterminants psychologiques de la « morale fiscale ». Revue Economique, Vol. 68(5), pp. 809-828 [free download].
[Abstract: Is Tax Evasion a Personality Trait?] Despite an increasing interest in the non-monetary determinants of tax behaviors (also known as tax morale), the recent literature offers few empirical elements on the link between moral personality characters and tax evasion propensity. However, such measures are necessary to understand the transmission channels of policies targeted at fighting against tax evasion. To fill this gap, this paper reports a lab experiment allowing to observe participants’ behaviors of income declaration and psychological measures from the psychometric literature: norm-submission, affective empathy, cognitive empathy, propensity to feel guilt and shame. These measures are combined through a Principal Component Analysis to extract independent factors. Results show that the decision to evade as well as its intensity are very highly related to affective empathy, cognitive empathy and public dimension of morality (measured by norm submission and propensity to feel shame). The propensity to feel guiltiness is, however, without significant effects. More importantly, the explanatory power of these individual morality measures is rather weak. This result challenges the assumption of an intrinsical tax morale and highlights the importance of the institutional context to understand evasion behaviors.
Additional content. Video: Xerfi Canal.
Loheac Y., Alia H., Bazart C., Ali Bchir M., Blondel S., Bonescu M., Bornier A., Brouard J., Chappe N., Cochard F., Flage A., Galeotti F., Hollandts X., Hopfensitz A., Jacquemet N., Le Lec F., Lefebvre M., Leplat M., Mantilla C., Mateu G., Péron G., Peterle E., Petit E., Raiber E., Rosaz J., Rozan A., Tisserand J-C., Villeval M-C, Willinger M., Zylbersztejn A., Sutan A. (2017). Mise en place d'une expérience avec le grand public : entre recherche, vulgarisation et pédagogie. Revue Economique, Vol. 68(5), pp. 941-953 [free download].
[Abstract: Methodological Considerations on Implementing a Participative Experiment] We present the implementation of an economic experiment conducted simultaneously in 11 French cities, with over 2700 participants, during four uninterrupted hours, during a popular-science event held in September 2015. Our goal is both to provide a roadmap for a possible replication and to discuss how the discipline can be used in new fields (science popularization, popular education, public communication).
Additional content. Video: Nuitdeschercheurs.
Jacquemet N., Joule R-V., Luchini S., Malézieux A. (2016). Engagement et incitations : Comportements économiques sous serment. L’actualité Economique, Vol. 92(1-2), pp. 315-349 [free download] [Slides]
[Release notes] Revised version of BETA WP n°2014-17.
Jacquemet N., L’Haridon O., Vialle I. (2014). Marché du travail, évaluation et économie expérimentale. Revue Française d’Economie, XXIX (1), pp. 189-226 [free download].
Edo A., Jacquemet. N. (2014). Discrimination à l'embauche selon l'origine et le genre : défiance indifférenciée ou ciblée sur certains groupes? Economie et Statistiques, n°464-465-466, pp.155-172 [free download] [Transparents].
Gabuthy Y., Jacquemet N. (2013). Analyse économique du droit et méthode expérimentale. Economie et Prévision, n°202-203, pp.121-145 [free download]
[Abstract: Experimental Law and Economics] We summarise the main contributions of experimental economics to the field of law and economics. Laboratory experiments are designed to replicate a microeconomic environment and to observe the behaviour of real people interacting in that environment. Theoretical predictions can then be compared with observed behaviour to assess their empirical relevance. We present a set of illustrations derived from this comparison. We review four streams of research in experimental law and economics: the Coase theorem, competition policy, the efficiency of dispute resolution mechanisms, and criminal behaviour.
Ferey, S., Gabuthy Y., Jacquemet N. (2013). L'apport de l'économie expérimentale dans l'élaboration des politiques publiques. Revue Française d’Economie, Vol. XXVIII (2), pp.155-194 [free download].
Gabuthy Y., Jacquemet N. (2007). Une évaluation expérimentale des modes électroniques de résolution des litiges Revue Economique, Vol. 58(6), pp.1309-1330 [free download] [English version].
[Abstract: An Experimental Evaluation of Online Dispute Resolution] The extensive development of the Internet and electronic commerce has resulted in the emergence of electronic methods of dispute resolution. The aim of this paper is to experimentally evaluate the economic performance of an innovative procedure, automated negotiation, which integrates technology as an active agent in the processing of conflicts. The parties’ proposals are received and evaluated by computer software, which introduces a convergence mechanism into the negotiation process and determines the terms of an agreement according to a pre-defined rule. The results show that the parties are incentivized to strategically exploit this convergence mechanism in order to increase their gains, and that this greatly limits the effectiveness of the process. The threat of disagreement, however, associated with an increase in the degree of conflict between the parties, seems to limit this perverse effect, incentivizing the parties towards conciliation. The implications of these results allow us to discuss the potential role of public regulation and reputation mechanisms in the virtual world.]
Jacquemet N., Rullière J-L., Vialle I. (2007) Contrôle des activités illégales en présence d’un biais d’optimisme Revue Economique, Vol. 58(3), pp.555-564 [free download].
[Abstract: Monitoring Illegal Activities with Optimistic Bias] Although expensive, monitoring is the most efficient mean to repress a criminal activity. This is typically included in economic models of crime thanks to a probability of detection, and only based on risk aversion. According to recent results in psychology literature, the perception of this probability can however be specific to each individual. This paper experimentally investigates the existence of such errors in probabilities forecasts, often labelled “optimism bias”. The experiment relies on choices between a no risky (legal) activity and an illegal activity – randomly penalized by a fine. The experimental treatments assess whether the way the monitoring policy is announced can affect the optimism bias. The results provide a guide into costless devices to undermine illegal activities, grounded on an idiosyncratic perception of risk.
Jacquemet N. (2006). Microéconomie de la corruption Revue Française d’Economie, Vol. XX (4), pp. 118-159 [free download] [Transparents]
Book chapters
Edo A., Jacquemet. N. (2017) La discrimination dans l’accès à l’emploi, in Repenser le modèle social: 8 nouvelles questions d'économie, P. Askenazy, D. Cohen et C. Senik (ed.), Albin-Michel.
Dumont, E., Fortin B., Jacquemet N., Shearer B. (2012). Rémunération mixte et comportement professionnel des médecins, in Le Québec économique 2011. Un bilan de santé du Québec, L. Godbout, M. Joanis et N. de Mercellis-Warin (ed.), Presses de l’Université Laval. [find the book] [download the chapter]
Jacquemet. N. (2013) Discriminations à l’embauche : quelle ampleur, quelles solutions? in Regards croisés sur l’économie, octobre 2013 Vol. 1 (13), pp. 49-63, La découverte.
Gabuthy Y., Jacquemet N. (2009). Economie expérimentale et droit, in Analyse économique du droit, Deffains B. et Langlais E. (ed.), De Boeck Universités, Collection « Ouvertures ».