Seminar: Cyril Hédoin, June 11th, 2014, GREQAM (Aix-en-Provence, France)

On June 11th, Cyril Hédoin (University of Reims Champagne-Ardenne, France) is invited in the Economic philosophy seminar organised by GREQAM (to 4.30 to 6.30 pm, meetings room, Campus Ferry, Aix-en-Provence). The title of his presentation will be “Against the Eliminativist View of Institutions in Economics: Rule-Following and Game Theory“.

Abstract: This paper argues that most game-theoretic accounts of institutions in economics are eliminativist: they reduce institutions to behavioral patterns the players are incentivized to implement. However, because institutions do not explain the behavior of the agents, they can be eliminated as a concept from the scientific explanation. An alternative account linking institutions to rule-following behavior in a game-theoretic framework is developed. Institutions are defined as epistemic games where the players have a common prior over the state space. I show that the assumptions of common prior and of a commonly known state space in an epistemic game are the same as to assume that the members of a community have a common understanding of a situation. This common understanding has a strong similarity with Ludwig Wittgenstein’s concept of lebensform.

Keywords: Institutions, Rule-following, Epistemic game theory, Common Understanding, Wittgenstein.

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Seminar: Lara Buchak, June 11th, 2014, CPNSS-LSE (London, United Kingdom)

On June 11th, Lara Buchak (UC Berkeley) is invited in the Choice Group seminar organised by the Centre for Philosophy of Natural and Social Science at London School of Economics (from 5.30 to 7.00 pm, LAK.2.06, 2nd floor of the Lakatos Building, Portugal Street). The title of his presentation will be announced very soon.

http://cpnssevents.org/events/lara-buchak-uc-berkeley-philosophy/

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Seminar: Nicole Hassoun, June 11th, 2014, EthiEco (Paris France)

On June 11th, Nicole Hassoun(SUNY Binghamton) is invited in the Paris Seminar Ethics and Economics (EthiEco) (from 6.00 to 8.00 pm, Maison de la Recherche, 28 rue Serpente, Paris, 6e, room S001). The title of her presentation will be announced very soon.

https://sites.google.com/site/seminaireethieco/home/seminaire-ethieco-2014

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Seminar: Wlodek Rabinowicz, June 10th, 2014, CPNSS-LSE (London, United Kingdom)

On June 10th, Wlodek Rabinowicz (Lund University) is invited in the Popper Seminar organised by the Centre for Philosophy of Natural and Social Science at London School of Economics (from 2.00 pm, LAK.2.06, 2nd floor of the Lakatos Building, Portugal Street). The title of his presentation will be “From Values to Probabilities“.

Abstract: Setting off from the Fitting-Attitude analysis of value (FA-analysis), according to which to be valuable is to be a fitting object of a pro-attitude, I proposed some years ago an account of value relations which makes room both for incommensurability in value and for potential vagueness in value comparisons (Rabinowicz 2008). In my talk, I will shortly recapitulate this account, but I will then move on to suggest that one might adopt an analysis of probability that is structurally similar to the FA-analysis of value. Indeed, many probability theorists at least from Poisson onwards did adopt an analysis of this kind. This makes it possible to formally model probability relations in essentially the same way as I have modelled value relations. One of the implications of the model is that we get a new account of Keynesian incommensurable probabilities and of potential vagueness in probability comparisons.

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Seminar: Rouslan Koumakhov, May 16th, 2014, EconomiX (Paris, France)

On May 16th, Rouslan Koumakhov (Reims Management School) will present one of his works in the Conventions seminar organised by Economix (from 3.00 pm to 5.00, Université de Paris Ouest Nanterre La Défense, G building, room 413 A). The title of his presentation will be Identification sociale et crise financière .

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Seminar: Brian Hill, May 15th, 2014, IHPST (Paris, France)

On May 15th, Brian Hill (GREG-HEC & IHPST) will present one of his works in the seminar of the team Décision, Rationalité, Interaction (IHPST) (from 2.00 to 4.00 pm, seminar room of the department of cognitive studies of École Normale Supérieure, 29 rue d’Ulm, 75005 Paris). The title of his presentation will be Dynamic Choice: A Problem for Imprecise Probabilities or Imprecise Probabilists?.

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Seminar: Antoinette Baujard, May 14th, 2014, PHARE (Paris, France)

On May 14th, Antoinette Baujard (University Jean Monnet, Saint Etienne, GATE L-SE) is invited in Les après-midi de Philosophie et Economie seminar organised by PHARE (from 5.30 to 7.30 pm, Maison des Sciences Économiques, Paris, room 116). The title of her presentation will be “Sen is not a capability theorist”, joint work with Muriel Gilardone (Université de Caen Basse-Normandie, CREM).

Seminar organised by Elodie Bertrand, Jean Dellemotte, Sophie Jallais and Philippe Poinsot.

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Seminar: Malgorzata Dereniowska, May 14th, 2014, GREQAM (Aix-en-Provence, France)

On May 14th, Malgorzata Dereniowska (GREQAM, Aix-Marseille University) will present one of his works in the Economic philosophy seminar organised by GREQAM (to 4.30 to 6.30 pm, room Braudel, Campus Ferry, Aix-en-Provence). The title of her presentation will be “What Value Does Nature Have? Environmental Ethics and Public Decision Making“.

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Seminar: Christian Walter & Jean-Pierre Zigrand, May 13th, 2014, CPNSS-LSE (London, United Kingdom)

On May 13th, Christian Walter (Associate Professor of Finance, University Paris 1 Panthéon-Sorbonne and Director of the Ethics and Finance Chair, Catholic University of Paris) and Jean-Pierre Zigrand (Associate Professor of Finance, LSE and Director of the Systemic Risk Centre, LSE) are invited in the Forum for European Philosophy organised by the Centre for Philosophy of Natural and Social Science at London School of Economics (from 6.00 to 8.00 pm, Wolfson Theatre, New Academic Building, LSE). Chair: Alex Voorhoeve(Associate Professor, Department of Philosophy, Logic and Scientific Method, LSE). The title of the discussion will be “Ethics Matters in Financial Theory“.

Abstract: Is financial management a question of mathematics or a question of ethics? Are the tools of financial modelling ethically neutral? Christian Walter will argue that in the context of finance any preference in mathematics is also a preference in ethics and will discuss his ideas with financial economist Jean- Pierre Zigrand and philosopher Alex Voorhoeve.

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Working Paper: Cyril Hédoin, “Epistemic Basis for Collective Intentions In Games”

Cyril Hédoin (Université Reims – Champagne-Ardennes) has recently published online a working paper entitled “Epistemic Basis for Collective Intentions In Games“.

Abstract: Economists and philosophers have generally tackled the so-called “collective action problem” in two different ways. While the former have made a systematic use of formal tools such as game theory, philosophers interested in social ontology have rather approached this subject by emphasizing the role of collective intentionality in the emergence of cooperation. This article seeks to build a bridge between these two approaches by offering a formalization of collective intentions in a game-theoretic framework. Starting with John Searle’s non reductionist account of collective intentions, I define a collective intention as a public event where players intend to implement an outcome or a set of outcomes in a game. On this basis, I define the concept of collective intention equilibrium and discuss its formal properties. In particular, I show that under some epistemic conditions, a collective intention equilibrium implement a correlated equilibrium. The fact that agents share a common cultural ground is highly favorable for the development of collaboration in a game, i.e. cooperation on the basis of a collective intention.

Keywords: Collective intentions – Epistemic game theory – Correlated equilibrium – Collective intention equilibrium – Collaboration

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