{"title":"The dynamic cost of ex post incentive compatibility in repeated games of private information","authors":"David A. Miller","doi":"10.2139/ssrn.469521","DOIUrl":"https://doi.org/10.2139/ssrn.469521","url":null,"abstract":"In a repeated game with private information, a perfect public equilibrium (PPE) can break down if communication is not necessarily simultaneous or if players can “spy” on each others’ information. An ex post perfect public equilibrium (EPPPE) is a PPE that is ex post incentive compatible in each stage game; unlike PPE, EPPPE is robust under to any communication protocol, and to spying. However, robustness comes at a cost to the players: in many games, efficient payoffs in the corresponding static mechanism design problem cannot be supported as average payoffs in an EPPPE, even when players are patient. In two- player repeated allocation games, an optimal EPPPE never employs a (static) efficient outcome function in any stage game. Instead, the players always prefer to give up some static efficiency by sometimes allocating to the player with the lower valuation. Under independent valuations, optimal equilibria are often stationary, but when valuations are globally interdependent, optimal equilibria are never stationary. Applied to the problem of collusion with hidden costs, these results yield new insights into the phenomenon of price wars in collusive equilibria.","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129085342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coalition Strategies and Reduction of GHG Emissions","authors":"Vihang M Patel","doi":"10.2139/SSRN.663645","DOIUrl":"https://doi.org/10.2139/SSRN.663645","url":null,"abstract":"The Flexible Mechanisms articulated in the Kyoto Protocol provide a robust framework for emission reduction issue in a manner that is not just economically efficient, but is also pro-growth for trade. In the presence of liquid or illiquid markets, to attain higher value from the emission trading, we have shown that coalition strategies provide a pertinent alternative to production optimization measures which may not be feasible at times. The whole game is analyzed taking a resource based view of the strategic factor markets. We have also illustrated the measures needed to provide stability to the coalitions and hence the coalition strategies.","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116304496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bayesianism without learning","authors":"D. Samet","doi":"10.1006/REEC.1999.0186","DOIUrl":"https://doi.org/10.1006/REEC.1999.0186","url":null,"abstract":"According to the standard definition, a Bayesian agent is one who forms his posterior belief by conditioning his prior belief on what he has learned, that is, on facts of which he has become certain. Here it is shown that Bayesianism can be described without assuming that the agent acquires any certain information; an agent is Bayesian if his prior, when conditioned on his posterior belief, agrees with the latter. This condition is shown to characterize Bayesian models.","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"321 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"119275173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Dynamic Tiebout Theory of Voluntary versus Involuntary Provision of Public Goods","authors":"G. Glomm, Roger Lagunoff","doi":"10.1111/1467-937X.00102","DOIUrl":"https://doi.org/10.1111/1467-937X.00102","url":null,"abstract":"This paper considers a dynamic model of Tiebout-like migration between communities that utilize distinct allocation procedures for public goods. At issue is whether voluntary or compulsory procedures are more likely to prevail over time. We model infinitely lived individuals who make repeated, sequential location decisions over one of two communities. Each community uses a distinct mechanism for allocating public goods. The first is one in which contributions are given voluntarily by the citizenry of the community. The second is a compulsory scheme by which individuals are taxed proportionately to wealth with the tax determined by a majority vote. Opportunities to accumulate wealth exist via accumulation of public capital. The Markov Perfect equilibria of the dynamic game are studied. Our main result shows that when accumulated wealth converges to a steady state, individuals' locational choices eventually ``select\" the involuntary provision mechanism. This holds despite the fact that unanimous location in the voluntary provision community may in many cases remain as a Nash equilibrium of the static game each period. We also describe conditions under which voluntary provision survives. These conditions require that accumulation of capital fails to decrease wealth dispersion over time. The results are shown to be consistent with findings relating inequality to school choice.","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133288384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Model of Bargaining with the Possibility of Arbitration","authors":"Paola Manzini, M. Mariotti","doi":"10.2139/SSRN.57949","DOIUrl":"https://doi.org/10.2139/SSRN.57949","url":null,"abstract":"We consider an alternating offer bargaining model in which the players may agree to call in an arbitrator in case of disagreement. The main message of our study is that the mere presence of an arbitrator - who can only become active with the consent of both parties - in the background of negotiations may entirely drive their outcome. We discuss the implications of this result both for theories of arbitration and for the interpretation of cooperative bargainining solutions.","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129014787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Loss Aversion in a Multi-Period Model","authors":"Jonathan Shalev","doi":"10.1016/S0165-4896(96)00832-3","DOIUrl":"https://doi.org/10.1016/S0165-4896(96)00832-3","url":null,"abstract":"","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"119797052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EFFICIENCY AND VOLUNTARY IMPLEMENTATION IN MARKETS WITH REPEATED PAIRWISE BARGAINING","authors":"M. Jackson, T. Palfrey","doi":"10.2307/2999620","DOIUrl":"https://doi.org/10.2307/2999620","url":null,"abstract":"We examine a simple bargaining setting, where heterogeneous buyers and sellers are repeatedly matched with each other. We begin by characterizing efficiency in such a dynamic setting, and discuss how it differs from efficiency in a centralized static setting. We then study the allocations which can result in equilibrium when the matched buyers and sellers bargain through some extensive game form. We take an implementation approach, characterizing the possible allocation rules which result as the extensive game form is varied. We are particularly concerned with the impact of making trade voluntary: imposing individual rationality {sl on and off} the equilibrium path. No buyer or seller consumates an agreement which leaves them worse off than the discounted expected value of their future rematching in the market. Finally, we compare and contrast the efficient allocations with those that could ever arise as the equlibria of some voluntary negotiation procedure.","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133760374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Settlement Negotiations with Two-Sided Asymmetric Information: Model Duality, Information Distribution and Efficiency","authors":"A. Daughety, Jennifer F. Reinganum","doi":"10.1016/0144-8188(94)90044-2","DOIUrl":"https://doi.org/10.1016/0144-8188(94)90044-2","url":null,"abstract":"","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118654573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Algebraic Geometry of Perfect and Sequential Equilibrium","authors":"L. Blume, W. Zame","doi":"10.2307/2951732","DOIUrl":"https://doi.org/10.2307/2951732","url":null,"abstract":"Two of the most important refinements of the Nash equilibrium concept for extensive form games with perfect recall are Selten's (1975) {it perfect equilibrium/} and Kreps and Wilson's (1982) more inclusive {it sequential equilibrium/}. These two equilibrium refinements are motivated in very different ways. Nonetheless, as Kreps and Wilson (1982, Section 7) point out, the two concepts lead to similar prescriptions for equilibrium play. For each particular game form, every perfect equilibrium is sequential. Moreover, for almost all assignments of payoffs to outcomes, almost all sequential equilibrium strategy profiles are perfect equilibrium profiles, and all sequential equilibrium outcomes are perfect equilibrium outcomes. par We establish a stronger result: For almost all assignments of payoffs to outcomes, the sets of sequential and perfect equilibrium strategy profiles are identical. In other words, for almost all games each strategy profile which can be supported by beliefs satisfying the rationality requirement of sequential equilibrium can actually be supported by beliefs satisfying the stronger rationality requirement of perfect equilibrium. par We obtain this result by exploiting the algebraic/geometric structure of these equilibrium correspondences, following from the fact that they are {em semi-algebraic sets/}; i.e., they are defined by finite systems of polynomial inequalities. That the perfect and sequential","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127759309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Monotonicity of Optimal Policies in a Zero Sum Game: A Flow Control Model","authors":"E. Altman","doi":"10.1007/978-1-4612-0245-5_15","DOIUrl":"https://doi.org/10.1007/978-1-4612-0245-5_15","url":null,"abstract":"","PeriodicalId":280771,"journal":{"name":"Game Theory and Information","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130771210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}