Chapitre 4. Justice as Fairness : Rawls
Transcription
Chapitre 4. Justice as Fairness : Rawls
John Rawls 1921-2002 Chapitre 4. Justice as Fairness : Rawls Références Arnsperger, C., Van Parijs, P. (2003) Ethique économique et sociale, Paris, La Découverte, Repères n°300, chapitre 4 Freeman, S. (2008) Original Position, Stanford Encyclopedia of Philosophy, http://plato.stanford.edu/entries/original-position/#VeiIgn Kymlicka, W. (2003) Les Théories de la justice : une introduction, Paris, La Découverte, chapitre 2 Wenar, L (2008) “John Rawls”, Stanford Encyclopedia of Philosophy, http://plato.stanford.edu/entries/rawls/ Richardson, H. (2005), “John Rawls”, Internet Encyclopedia of Philosophy, http://www.iep.utm.edu/rawls/ Le "libéralisme égalitaire" de John Rawls A. Démarche et méthode B. Le contenu de la "Justice as Fairness" C. Critiques et débats D. Expériences - voile d'ignorance et maximin - adhésion à la justice procédurale A. La démarche rawlsienne Objectifs Selon Rawls, la philosophie politique a 4 grands rôles 1. Rôle pratique : trouver les fondements d'un contrat social raisonné entre les membres d'une société potentiellement tiraillé par ma mésentente et menacée de divisions (cf. Hobbes et son Léviathan ou Rousseau et son Contrat Social) 2. Aider les citoyens à s'orienter au sein de leur société, en décrivant la façon dont l'ordre social se constitue 3. Tester les limites de la mise en œuvre des utopies politiques : la philosophie politique doit s'attacher à décrire des arrangements politiques réalisables, mais dans ce cadre elle doit décrire le meilleur ordre social possible 4. Permettre la réconciliation des citoyens avec l'organisation politique et sociale dans laquelle ils vivent : elle n'est pas uniquement marquée par la domination, la cruauté, les préjugés, la corruption et l'irrationalité. Elle obéit à une certaine forme de rationalité. Concernant sa propre œuvre, Rawls se donne deux grands objectifs Apaiser le conflit entre égalité et liberté au sein des théories de la justice Décrire les limites moralement acceptables de la tolérance civile et internationale "Justice as fairness", une éthique alternative à l'utilitarisme "Perhaps I can explain my aim in this book as follow. During much of modern moral philosophy the predominant systematic theory has been some form of utilitarianism. (…) Those who criticized [the great utilitarians] … pointed out the obscurities of the principle of utility and noted the apparent incongruities between its many of its implications and our moral sentiments. But they failed, I believe, to construct a workable and systematic a moral conception to oppose it. (…) What I have attempted to do is to generalize and carry to a higher order of abstraction the traditional theory of the social contract as represented by Locke, Rousseau, and Kant." John Rawls, A Theory of Justice, 1971, pp. xvii-xviii "Justice as fairness" : une éthique retravaillée tout au long de son oeuvre A Theory of Justice (1971), Cambridge (Mass.), Harvard University Press. Political Liberalism (1993), New York, Columbia University Press. The Law of Peoples (1999), Cambridge (Mass.), Harvard University Press. Justice as Fairness : A Restatement (2001), Cambridge (Mass), Harvard University Press. Rawls contre l'utilitarisme (A Theory of Justice, 1971) Rawls adresse 3 critiques fondamentales à l'utilitarisme 1. L'utilitarisme classique est indifférent à la distribution des satisfactions individuelles. "The striking feature of the utilitarian view of justice is that it does not matter, except indirectly, how this sums of satisfactions is distributed among individuals any more than it matters, except indirectly, how one man distributed his satisfactions over time." (p.23) 2. La justice sociale dépend de l'appréciation du bien-être à l'échelle de la société : l'éthique sociale utilitariste adopte le point de vue d'un observateur bienveillant et impartial mais imaginaire et distinct des membres de la société. Il ne prend pas au sérieux les différences intrinsèques entre les individus. "[The utilitarist] view of social cooperation is the consequence of extending to society the principle of choice for one man, and then, to make this extension work, conflating all persons into one through the imaginative acts of the impartial sympathetic observer. Utilitarianism does not take seriously the distinction between persons." (p. 24) Rawls contre l'utilitarisme (A Theory of Justice, 1971) 3. Argument des préférences perverses : l'utilitarisme se donne comme objectif la maximisation des désirs des individus, sans exception. "In utilitarianism the satisfaction of any desire has some value in itself witch must be taken into account in deciding what is right. (…) In justice as fairness (…) [t]he principles of right, and so of justice, put limits on which satisfactions have value (…) Hence in justice as fairness one does not take men's propensities and inclinations as given, whatever they are, and then seek the best way to fulfil them. Rather, their desires and aspirations are restricted from the outset by the principles of justice which specify the boundaries that men's systems of ends must respect." (pp.27-28) Comme antidote, Rawls propose une éthique sociale déontologique (c'est-à-dire procédurale), où le juste n'est plus nécessairement confondu avec le bon "(…) Utilitarianism is a teleological theory whereas justice as fairness is not. By definition, then, the latter is a deontological theory, one that (…) does not interpret the right as maximizing the good. (…) Justice as fairness is deontological (…) [f]or (...) there is no reason to think that just institutions will maximize the good." (pp. 26-7) "Justice as fairness" : la méthode du voile d'ignorance Rawls s'inscrit dans la tradition contractualiste de Locke, Rousseau et Kant : ces philosophes ont recours à une position originelle fictive pour détailler les principes souhaitables pour fonder le contrat social (l'organisation légitime de la société) Rawls argumente que l'éthique déontologique qu'il propose est celle qui serait choisie par tout individu libre, moral et rationnel placé sous voile d'ignorance ignorant de sa position sociale, la qualité de ses biens premiers naturels (intelligence, force...) sa conception particulière de la vie bonne ses caractéristiques psychologiques (empathie, égoïsme...) mais conservant ses connaissances générales de la nature humaine et adhérant à l'idée d'égalité intrinsèque et d'égale liberté des êtres humains Parce que l'individu sous voile d'ignorance doit déterminer l'organisation d'une société où il sera inséré sans connaître son propre statut, il est sous contrainte d'impartialité et formulera des principes d'organisation équitables. "Justice as fairness" : la méthode du voile d'ignorance "In justice as fairness the original position of equality corresponds to the state of nature in the traditional theory of the social contract. (…) Among the essential features of this situation is that no one knows his place in society, his class position or social status, nor does any one knows his fortune in the distribution of natural assets and capabilities, his intelligence, strength, and the like. I shall even assume that the parties do not know their conceptions of the good or their special psychological propensities. The principles of justice are chosen behind a veil of ignorance." (Rawls, 1999, p.11) B. Le contenu de la "Justice as fairness" 1. Les biens premiers Les biens premiers, étalon de mesure de la vie bonne Définition : les biens premiers sont les moyens généraux nécessaires (et pas seulement désirés) pour se forger une conception de la vie complète et d'en poursuivre la réalisation "[The primary] goods are things citizens need as free and equal persons living a complete life : they are not things it is simply rational to want or desire, or to prefer or even to crave." (Justice as Fairness, 2001, pp.57-8) La liste des biens premiers n'est pas établie de manière relative ou subjective : elle dépend du contexte socio-historique mais aussi d'une conception normative et universelle de la dignité humaine "(…) the account of primary goods does not rest solely on psychological, social, or historical facts. (…) [I]t does so only together with a political conception of the person as free and equal, endowed with the moral powers, and capable of being a fully cooperative member of the society. This normative conception is necessary to identify the appropriate list of primary goods." (Justice as Fairness, 2001, p.58) Principe d'égale liberté Principe d'égalité des opportunités Les biens premiers chez John Rawls Biens premiers naturels (par exemple, intelligence, vigueur, talents) : ne dépendent pas de l'organisation institutionnelle et ne doivent pas être compensés par elle Biens premiers sociaux : dépendent de l'organisation institutionnelle, dont la légitimité dépend de leur répartition (BS1) Basic rights and liberties : freedom of thought and liberty of conscience (…). These rights and liberties are essential institutional conditions required for the adequate development and full and informed exercise of the two moral powers. (BS2) Freedom of movement and free choice of occupation against a background of diverse opportunities, which opportunities allow the pursuit of a variety of ends and give effect to decisions to revise and alter them. (BS3) Powers and prerogatives of offices and positions of authority and responsibility. (BS4) Income and wealth, understood as all-purpose means (having an exchange value) generally needed to achieve a wide range of ends whatever they may be. (BS5) The social bases of self-respect, understood as those aspects of basic institutions normally essential if citizens are to have a lively sense of their worth as persons and to be able to advance their ends with self-confidence. Rawls, Justice as Fairness : A Restatement (2001), pp.58-9 2. Deux (trois) principes et une clause lexicographique Une distribution équitable des biens premiers sociaux respecte 1. Deux (trois) principes de justice (I) "Each person has the same indefeasible claim to a fully adequate scheme of equal basic liberties, which scheme is compatible with the same scheme of liberties for all. Principe d'égalité des libertés fondamentales : respect d'une liste déterminée de libertés fondamentales (les biens premiers BS1 et BS2) au niveau le plus élevé qui puisse être garanti de manière égale à tous une liberté fondamentale peut être restreinte ou régulée au nom d'une autre liberté fondamentale (Arnsperger et Van Parijs, 2001, p.59) Une distribution équitable des biens premiers sociaux respecte 1. Deux (trois) principes de justice (I) "Each person has the same indefeasible claim to a fully adequate scheme of equal basic liberties, which scheme is compatible with the same scheme of liberties for all. Social and economic inequalities are to satisfy two conditions : (IIa) first, they are to be attached to offices and positions open to all under conditions of fair equality of opportunity ; Principe d'égalité des opportunités : Pas de garantie de la même probabilité d'accès aux positions sociales mesurées à l'aune des biens premiers sociaux BS3, BS4 et BS5 Mais garantie d'une même opportunité d'accès compte tenu - des différentes conceptions individuelles de la vie bonne - des différentes dotations en biens premiers naturels (talents) : l'approche rawlsienne n'entend pas compenser les inégalités "naturelles" Une distribution équitable des biens premiers sociaux respecte 1. Deux (trois) principes de justice (I) "Each person has the same indefeasible claim to a fully adequate scheme of equal basic liberties, which scheme is compatible with the same scheme of liberties for all. Social and economic inequalities are to satisfy two conditions : (IIa) first, they are to be attached to offices and positions open to all under conditions of fair equality of opportunity ; (IIb) and second, they are to be to the greatest benefit of the least-advantaged members of society (the difference principle)." Principe de différence (ou maximin) Sous la contrainte des deux autres principes, il impose de choisir, parmi tous les arrangements institutionnels envisageables et réalisables, celui qui rend aussi élevé que possible l'espérance d'un indice composite des biens premiers sociaux des plus défavorisés (dont l'identité peut varier d'un arrangement à un autre). Une distribution équitable des biens premiers sociaux respecte 1. Deux (trois) principes de justice (I) "Each person has the same indefeasible claim to a fully adequate scheme of equal basic liberties, which scheme is compatible with the same scheme of liberties for all. Social and economic inequalities are to satisfy two conditions : (IIa) first, they are to be attached to offices and positions open to all under conditions of fair equality of opportunity ; (IIb) and second, they are to be to the greatest benefit of the least-advantaged members of society (the difference principle)." 2. Clause lexicographique : principe I > principe IIa > principe IIb Rawls cherche à concilier liberté et égalité L'égalité des opportunités et le principe de différence en faveur des plus défavorisés sont subordonnés au respect égal des libertés de base ; Le principe de différence en faveur des plus défavorisés est subordonné au principe d'égalité des opportunités. Illustrations Si les 3 états sociaux respectent identiquement les principes d'égalité des libertés fondamentales et d'égalité des opportunités, le principe de différence établit que : Comparaison graphique des critères d'équité (Atkinson et Stiglitz, 1980) Indice des opportunités de l'individu 2 A Groupes sociaux États sociaux I II III A 9 9 9 B 50 5 30 C 10 11 12 B C D Le principe de différence n'est pas Un principe égalitariste Un principe utilitariste maximisateur Un principe de priorité aux pauvres 45° Principe de Pareto Principe utilitariste Principe égalitariste Maximin C Indice des opportunités de l'individu 1 entre A et C B D C. Critiques et débats 1. Critiques du voile d'ignorance rawlsien Une position originelle psychologiquement impossible Le voile d'ignorance rawlsien est trop épais : comment choisir les principes fondateurs de l'organisation d'une société sans connaître ses propres valeurs ? Réponse : le voile d'ignorance est une position originelle fictive où ne sont conservés que les éléments moralement indispensables à la formulation des principes organisateurs d'une société juste. Dire que les êtres humains doivent être libres et également considérés par la société suffit pour ce faire sans qu'il soit nécessaire de chercher à connaître leurs croyances et valeurs. Critique conséquentialiste Il n'y a aucune assurance que les principes découlant de l'éthique rawlsienne conduisent à une quelconque maximisation du bien-être de la population. Bien plus, si l'on ne possède pas de conception d'un bien ultime (quelle que soit la définition de celui-ci), on ne peut pas se mettre d'accord pour mettre en place des institutions permettant d'atteindre ce bien 2. Harsanyi et le principe de différence Selon le principe de différence, il faut choisir l'arrangement institutionnel qui maximise les opportunités associées à la pire des situations sociales possibles. Selon Harsanyi (1975) Jan Harsanyi (1920-2000) Le choix du principe de différence (maximin) par des individus placés dans la position originelle correspond à un cas particulier où les individus ont une aversion au risque infinie. Le principe de différence ne peut être choisi que par un individu paranoïaque qui chercherait à limiter les dommages si c'était son pire ennemi qui choisissait sa position sociale. Un individu possédant une aversion au risque non infinie devrait choisir un principe maximisant, non la situation du plus défavorisé, mais l'utilité espérée moyenne (= celle que recevrait un individu pris au hasard dans la population) La réponse de Rawls (1987) : probabilités difficiles à estimer ; les individus s'intéressent surtout au minimum vital ; maximum = pb 3. Le principe de différence vs. le "maximin" des économistes Lorsqu'ils comparent des états sociaux, les économistes utilisent souvent le maximin comme un critère alternatif (ou complémentaire) au critère utilitariste cardinal de la somme des utilités. Cela n'est pas cohérent avec l'approche de Rawls Parce que le principe de différence a un sens dans une perspective procédurale (déontologique) : il n'est pertinent que pour évaluer le caractère équitable ou non d'ensembles institutionnels et ne s'applique pas à un moindre niveau de généralité Parce que le principe de différence s'applique à la situation de l'individu le plus défavorisé appréciée à l'aune des biens premiers sociaux – et non d'une métrique du bien-être utilitariste subjective. Comment identifier les plus défavorisés ? Indice multidimensionnel permettant d'agréger les biens premiers sociaux (libertés fondamentales + opportunités sociales) Si les libertés et les opportunités sont égales (principes I et IIa respectés), alors les plus défavorisés sont ceux qui disposent du niveau de revenu le plus faible 3. Le principe de différence vs. le "maximin" des économistes "This conception is understood to apply to the basic structure of society : hat is, to its major institutions (…) and how they fit together into one system. (…) But the maximin criterion is not meant to apply to small-scale situations. (…) Maximin is a macro not a micro principle" (Rawls, AER, 1974, p.142) "The two principles of justice assess the basic structure according to how it regulated citizen's shares of primary goods, these shares being specified in terms of an appropriate index. Note that primary goods are given by reference to objective features of citizen's social circumstances, features open to public view : their secured institutional rights and liberties, their available fair opportunities, their (reasonable) expectations of income and wealth seen from their social position, and so on. (…) In a well-ordered society where all citizen's equal basic rights and liberties and fair opportunities are secure, the least advantaged are those belonging to the income class with the lowest expectations." Rawls, Justice as Fairness, 2001, p.59 4. Rawls et l'inégalité de biens premiers naturels Dans une société démocratique Les citoyens doivent se considérer également libres et égaux en dignité Pourtant des inégalités sociales existent : les opportunités des individus sont affectées par leur famille, leur classe d'origine, leurs biens premiers naturels et par la chance Les 3 principes de la justice comme équité sont ceux à la lumière desquels des personnes morales libres et égales peuvent tolérer que leurs relations soient affectées par la fortune sociale et la loterie naturelle Dans la justice comme équité Le principe de différence ne s'applique pas aux biens premiers naturels : il ne s'agit pas de compenser les individus les moins biens dotés par la nature L'arrangement institutionnel le plus juste peut moralement découler des différences naturelles et de naissance entre individus à condition que l'inégalité qui en résulte favorise les moins biens lotis sachant que les handicaps en termes de biens premiers naturels peuvent être (et sont souvent) à l'origine de biens premiers sociaux de moindre qualité 4. Rawls et l'inégalité de biens premiers naturels "Thus at first sight the distribution of natural assets and unequal lifeexpectations threatens the relations between free and equal moral persons. But provided the maximin criterion is satisfied, these relations may be preserved : inequalities are to everyone's advantage and those able to gain from their good fortune do so in ways agreeable to those less favored" John Rawls, "Some Reason for the Maximin Criterion", AER 1974, p.145 D. Expérience (1) Les personnes valorisent-elles la justice procédurale ? Anand P. (2001) Procedural fairness in economic and social choice: evidence from a survey of voters. Journal of Economic Psychology 22 : 247-270. 5 claims for procedural fairness 1. Resource allocation conflicts are such that no exclusively outcome-based resolution is available (cf. Sen and the paretian liberal impossibility theorem, 1979). 2. Outcome uncertainty may be so pervasive that processes are all we can monitor or control (cf. legal system with high uncertainty). 3. Fair processes might bring about efficient outcomes (cf. Rawls, 1971). 4. We may wish to impose limits on the discretion of those in positions of power. 5. Situations may exist in which the treatment process has a (dis)utility that is interpreted as being (un)fair : agency matters ! Hypothesis 1. People reject random choosing when facing unequal outcomes (...) Hypothesis 3. Sensitivities to fair process are often linked to inequalities between interacting agents (be they individuals within firms, markets or other non-market institutions designed to support co-operation) Hypothesis 4. Actions (verbal insults for example) that may have no apparent impact on a person's expected wealth levels can be deeply disturbing to someone who sees them as threatening to their status as a person. (…) Hypothesis 5. There is a relation between fairness perception and insulting treatment of someone. Hypothesis 1 People reject random choosing when facing unequal outcomes Question 1 Two adults arrive at casualty with a life-threatening condition that does not affect their ability to make decisions. The doctor explains that there are resources only to treat one patient and then proposes that she will decide which one is to be treated by tossing a coin. a) If you were one of these patients, would you think that a doctor's choice based on a coin toss was a fair way of choosing which patient to treat? b) Do you think it is fair if patients could decide who will benefit from the treatment ? Question 2 You work for a small firm and your boss considers how to distribute a one-off Christmas bonus of £1000 between his five employees, including yourself. S/he considers two options: (A) Conduct a lottery between the between the five of you and give £1000 to the winner. (B) Give £200 to each of you. a) S/he then decides to conduct the lottery (option A). Is this fair ? b) Workers vote for or against the lottery. Is this fair ? Results People thing that random choice is unfair But the unfairness of it is lower when it is imposed ! "It could be that in an unfair situation, people would rather not have control on themselves" (Anand, 2001, p. 257) Résultats – promo 15-16 Question 1 Very Fair Fair Unfair Very Unfair A 2 3 10 10 B 0 3 7 15 A 0 1 14 10 B 5 15 4 1 Question 3 Santé : même résultat que chez Anand : le tirage au sort est injuste et d'autant plus que les personnes concernées doivent prendre part à la décision. Différence avec Anand : tirage au sort accepté dans le cas 'travail' Hypothesis 3 Sensitivities to fair process are often linked to inequalities between interacting agents (be they individuals within firms, markets or other non-market institutions designed to support co-operation) Question 5 A company is selling time-shares in holiday homes to clients who are ordinary people on holiday. It takes potential customers to a hotel where it makes a presentation lasting one hour during which free glasses of wine and salted nuts are distributed liberally to the audience. By the end of the presentation, Fred is feeling somewhat merry and signs up for a one week time-share costing £500 per year for the next five years. He regrets it later. Do you think the process by which the sale was made was fair? a) if Fred is a company representative himself b) if Fred is one of the holiday-maker Question 6 The managing director of a small company finds that an employee has made a serious error of judgement and she asks her to resign immediately. How fair is the managing director's request? a) if the employee is the head of finance b) if the employee is a young manager Results The greater the inequality between the agents, the less the processes are judged acceptable Résultats promo 15-16 Q5 Q6 Very Fair Fair Unfair Very Unfair A 5 15 4 1 B 0 1 14 10 A 2 14 8 1 B 1 7 14 3 Même résultat que chez Anand Hypothesis 4 Actions (verbal insults for example) that may have no apparent impact on a person's expected wealth levels can be deeply disturbing to someone who sees them as threatening to their status as a person. In economic contexts, we believe that requests for certain kinds of information, sensible as they may seem from an efficiency view-point, can be threatening in just this way (and are therefore resisted by policy-makers). Question 7 Do you think it is fair for insurance companies to require a medical test when determining whether a person is to be given life insurance? a) if the test is a genetic test b) if the test is a blood sample exam Question 8 Do you think it is fair for an employer to require a written test when determining whether a person is to be given a job? a) if the test is a personality test b) if the test is a skills test Results Requests for information that is either more revealing and possibly more damaging to the person's sense of value as an agent are perceived as being less fair Résultats promo 15-16 Q7 Q8 Very Fair Fair Unfair Very Unfair A 0 1 9 15 B 1 2 12 10 A 0 9 14 2 B 6 17 2 0 On retrouve le fait que les demandes d'information moins personnelles (prise de sang vs. test génétique / test de compétences vs. de personnalité) sont vécues comme plus justes. Par contre, toutes ces demandes sont vécues comme plus injustes, globalement, que pour les répondants d'Anand. Hypothesis 5 There is a relation between fairness perception and insulting treatment of someone In the ultimatum game, contrary to what game theory suggests, equal splits are often proposed and unequal splits with payoffs for both parties are regarded as insulting and avoided or rejected by those who are averse to actions that could be taken as signals of disrespect Question 9 You are in an ultimatum game in which you are one of the two players who has to divide 100€ given to you by an experimenter. The other player must suggest a division of the money and you can accept the proposed division, whatever it is or reject it. If you accept the proposed division then that is what you will both get. If you reject the proposed division, neither of you will receive anything. Question 9 What would you do? □ Accept the proposal (division is 90€ for your opponent and 10€ for you) □ Reject the proposal (division is nothing for both of you) □ Do not know a) If your opponent doesn't justify her proposal : "take it of leave it" b) Your opponent makes the following point : this may not be an equal split but it is the only logical thing to do responsibility, if there is any, lies with the designer of the situation, not the proposer. S/he believes you would do the same under similar circumstances and that such a response would be entirely understandable. Question 10 John's work is not up to scratch so his manager gives him a warning. At the end of the month, there are many complaints about his rudeness to customers and other members of staff and he is given, in person and in writing, the contractual period of notice to leave. Is the manner of John's sacking fair? a) if the warning was writen and oral, with a face-to-face discussion of the problems and possible remedies b) if the warning was only written Results Strong preference for the active involvment of the individual in an area where norms are neither strong nor, one suspects, uniform Résultats promo 15-16 Q9 Accepter (%) Rejeter (%) A 24 76 B 20 80 Même résultat que chez Anand (mais différence non significative...) Résultats promo 15-16 Q10 A B Very Fair Fair Unfair Very Unfair 13 11 1 0 0 7 13 5 Même résultats que chez Anand Conclusions People often have good reason to be "morally productive" There is a strong lay resistance to the use of random choosing as a fair process... but, apparently, not because it removes control (voice) (?) The processes which imply involvement, even through representatives, are strongly preferred to what might be called 'closed' choice mechanisms in which the decision problem is completely defined and the preferences are inferred by some indirect method A sense of due process has value in curtailing possible abuse of discretion within hierarchical groups Treatment showing less than appropriate regard for a person as an agent is regarded as unfair D. Expérience (2) Les personnes choisissent-elles toujours le maximin lorsqu'elles sont placées en situation d'impartialité ? John H. Beck School of Business Administration Gonzaga University, Spokane Tableau des gains A B C D E F G H I J K L M N O Impair Pair $25.00 $23.05 $21.20 $19.45 $17.80 $16.25 $14.80 $13.45 $12.20 $11.05 $10.00 $9.05 $8.20 $7.45 $7.08 $0 $1.15 $2.20 $3.15 $4.00 $4.75 $5.40 $5.95 $6.40 $6.75 $7.00 $7.15 $7.20 $7.15 $7.08 Partie 1 You must choose which row in the table -- A, B, C, etc. -- will be used to determine your payoff. Your payoff will be determined by the roll of a (virtual http://de.virtuworld.net/ ) die at the end of the period (one roll for everybody). If the die shows 1, 3 or 5 you will receive the amount in the column headed "odd"; if the die shows 2, 4 or 6, you will receive the amount in the column headed "even." Payoffs will be made privately so you will know only your own payoff. Partie 2 You must choose which row in the table -- A, B, C, etc. will be used to determine the payoff for everyone in class. Before throwing the die to determine individual payoffs, one of these forms will be drawn at random; the row designated on that form will be used to determine individual payoffs for all students in the class. The die will then be (virtually) rolled separately for each individual in the class. Payoffs will be made publicly so everyone knows how much everyone else receives. If the die shows 1, 3 or 5, you will receive the amount in the column headed "odd"; if the die shows 2,4 or 6, you will receive the amount in the column headed "even." You are not allowed to make any transfers of part of your payoff to other students in the class after the experiment is concluded. Partie 3 The entire group must unanimously agree on which row in the table -- A, B, C, etc. -- will be used to determine the payoffs for everyone in the class. If the group does not reach unanimous agreement within 15 minutes, the payoffs from Part C will be zero. The die will then be (virtually) rolled separately for each individual in the class. Payoffs will be made publicly so everyone knows how much everyone else receives. If the die shows 1, 3 or 5, you will receive the amount in the column headed "odd"; if the die shows 2,4 or 6, you will receive the amount in the column headed "even." You are not allowed to make any transfers of part of your payoff to other students in the class after the experiment is concluded.