Research on Altruism and Love
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Evolutionary Game Theory: ESS, Convergence Stability, and NIS
Evolutionary Ecology Research, 2009, 11: 489–515 Evolutionary game theory: ESS, convergence stability, and NIS Joseph Apaloo1, Joel S. Brown2 and Thomas L. Vincent3 1Department of Mathematics, Statistics and Computer Science, St. Francis Xavier University, Antigonish, Nova Scotia, Canada, 2Department of Biological Sciences, University of Illinois, Chicago, Illinois, USA and 3Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona, USA ABSTRACT Question: How are the three main stability concepts from evolutionary game theory – evolutionarily stable strategy (ESS), convergence stability, and neighbourhood invader strategy (NIS) – related to each other? Do they form a basis for the many other definitions proposed in the literature? Mathematical methods: Ecological and evolutionary dynamics of population sizes and heritable strategies respectively, and adaptive and NIS landscapes. Results: Only six of the eight combinations of ESS, convergence stability, and NIS are possible. An ESS that is NIS must also be convergence stable; and a non-ESS, non-NIS cannot be convergence stable. A simple example shows how a single model can easily generate solutions with all six combinations of stability properties and explains in part the proliferation of jargon, terminology, and apparent complexity that has appeared in the literature. A tabulation of most of the evolutionary stability acronyms, definitions, and terminologies is provided for comparison. Key conclusions: The tabulated list of definitions related to evolutionary stability are variants or combinations of the three main stability concepts. Keywords: adaptive landscape, convergence stability, Darwinian dynamics, evolutionary game stabilities, evolutionarily stable strategy, neighbourhood invader strategy, strategy dynamics. INTRODUCTION Evolutionary game theory has and continues to make great strides. -
In the Light of Evolution VIII: Darwinian Thinking in the Social Sciences Brian Skyrmsa,1, John C
FROM THE ACADEMY: COLLOQUIUM INTRODUCTION COLLOQUIUM INTRODUCTION In the light of evolution VIII: Darwinian thinking in the social sciences Brian Skyrmsa,1, John C. Aviseb,1, and Francisco J. Ayalab,1 norms are seen as a society’s way of coor- aDepartment of Logic and Philosophy of Science and bDepartment of Ecology and dinating on one of these equilibria. This, Evolutionary Biology, University of California, Irvine, CA 92697 rather than enforcement of out-of-equilibrium behavior, is seen as the function of these Darwinian thinking in the social sciences was Evolutionary game theory was initially norms. Fairness norms, however, may involve inaugurated by Darwin himself in The De- seen by some social scientists as just a way interpersonal comparisons of utility. This is scent of Man and Selection in Relation to to provide a low rationality foundation for true of egalitarian norms, and of the norms Sex high rationality equilibrium concepts. A Nash of proportionality suggested by Aristotle. In (8, 9). Despite various misappropriations ’ of the Darwinian label, true Darwinian think- equilibrium is a rest point of a large class of Binmore s account, the standards for such ing continued in the social sciences. However, adaptive dynamics. If the dynamics converges interpersonal comparisons themselves evolve. toarestpoint,itconvergestoNash.Thismay Komarova(22),inanarticlethatcould with the advent of evolutionary game theory Social Dynamics (10) there has been an explosion of Darwin- nothappeninallgames,butitmayhappen equally well be in ,discusses ian analysis in the social sciences. And it has in large classes of games, depending on the the speed evolution of complex phenotypes in led to reciprocal contributions from the social dynamics in question. -
Proquest Dissertations
Sons of Barabbas or Sons of Descartes? An evolutionary game-theoretic view of psychopathy by Lloyd D. Balbuena A thesis submitted to the Faculty of Graduate Studies and Postdoctoral Affairs in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Cognitive Science Carleton University Ottawa, Ontario ©2010, Lloyd D. Balbuena Library and Archives Bibliotheque et 1*1 Canada Archives Canada Published Heritage Direction du Branch Patrimoine de I'edition 395 Wellington Street 395, rue Wellington OttawaONK1A0N4 OttawaONK1A0N4 Canada Canada Your file Votre reference ISBN: 978-0-494-79631-3 Our file Notre reference ISBN: 978-0-494-79631-3 NOTICE: AVIS: The author has granted a non L'auteur a accorde une licence non exclusive exclusive license allowing Library and permettant a la Bibliotheque et Archives Archives Canada to reproduce, Canada de reproduire, publier, archiver, publish, archive, preserve, conserve, sauvegarder, conserver, transmettre au public communicate to the public by par telecommunication ou par I'lnternet, preter, telecommunication or on the Internet, distribuer et vendre des theses partout dans le loan, distribute and sell theses monde, a des fins commerciales ou autres, sur worldwide, for commercial or non support microforme, papier, electronique et/ou commercial purposes, in microform, autres formats. paper, electronic and/or any other formats. The author retains copyright L'auteur conserve la propriete du droit d'auteur ownership and moral rights in this et des droits moraux qui protege cette these. Ni thesis. Neither the thesis nor la these ni des extraits substantiels de celle-ci substantial extracts from it may be ne doivent etre imprimes ou autrement printed or otherwise reproduced reproduits sans son autorisation. -
On the Behavior of Strategies in Hawk-Dove Game
Journal of Game Theory 2016, 5(1): 9-15 DOI: 10.5923/j.jgt.20160501.02 On the Behavior of Strategies in Hawk-Dove Game Essam EL-Seidy Department of Mathematics, Faculty of Science, Ain Shams University, Cairo, Egypt Abstract The emergence of cooperative behavior in human and animal societies is one of the fundamental problems in biology and social sciences. In this article, we study the evolution of cooperative behavior in the hawk dove game. There are some mechanisms like kin selection, group selection, direct and indirect reciprocity can evolve the cooperation when it works alone. Here we combine two mechanisms together in one population. The transformed matrices for each combination are determined. Some properties of cooperation like risk-dominant (RD) and advantageous (AD) are studied. The property of evolutionary stable (ESS) for strategies used in this article is discussed. Keywords Hawk-dove game, Evolutionary game dynamics, of evolutionary stable strategies (ESS), Kin selection, Direct and Indirect reciprocity, Group selection difference between both games has a rather profound effect 1. Introduction on the success of both strategies. In particular, whilst by the Prisoner’s Dilemma spatial structure often facilitates Game theory provides a quantitative framework for cooperation this is often not the case in the hawk–dove game analyzing the behavior of rational players. The theory of ([14]). iterated games in particular provides a systematic framework The Hawk-Dove game ([18]), also known as the snowdrift to explore the players' relationship in a long-term. It has been game or the chicken game, is used to study a variety of topics, an important tool in the behavioral and biological sciences from the evolution of cooperation to nuclear brinkmanship and it has been often invoked by economists, political ([8], [22]). -
Feminism & Philosophy Vol.5 No.1
APA Newsletters Volume 05, Number 1 Fall 2005 NEWSLETTER ON FEMINISM AND PHILOSOPHY FROM THE EDITOR, SALLY J. SCHOLZ NEWS FROM THE COMMITTEE ON THE STATUS OF WOMEN, ROSEMARIE TONG ARTICLES MARILYN FISCHER “Feminism and the Art of Interpretation: Or, Reading the First Wave to Think about the Second and Third Waves” JENNIFER PURVIS “A ‘Time’ for Change: Negotiating the Space of a Third Wave Political Moment” LAURIE CALHOUN “Feminism is a Humanism” LOUISE ANTONY “When is Philosophy Feminist?” ANN FERGUSON “Is Feminist Philosophy Still Philosophy?” OFELIA SCHUTTE “Feminist Ethics and Transnational Injustice: Two Methodological Suggestions” JEFFREY A. GAUTHIER “Feminism and Philosophy: Getting It and Getting It Right” SARA BEARDSWORTH “A French Feminism” © 2005 by The American Philosophical Association ISSN: 1067-9464 BOOK REVIEWS Robin Fiore and Hilde Lindemann Nelson: Recognition, Responsibility, and Rights: Feminist Ethics and Social Theory REVIEWED BY CHRISTINE M. KOGGEL Diana Tietjens Meyers: Being Yourself: Essays on Identity, Action, and Social Life REVIEWED BY CHERYL L. HUGHES Beth Kiyoko Jamieson: Real Choices: Feminism, Freedom, and the Limits of the Law REVIEWED BY ZAHRA MEGHANI Alan Soble: The Philosophy of Sex: Contemporary Readings REVIEWED BY KATHRYN J. NORLOCK Penny Florence: Sexed Universals in Contemporary Art REVIEWED BY TANYA M. LOUGHEAD CONTRIBUTORS ANNOUNCEMENTS APA NEWSLETTER ON Feminism and Philosophy Sally J. Scholz, Editor Fall 2005 Volume 05, Number 1 objective claims, Beardsworth demonstrates Kristeva’s ROM THE DITOR “maternal feminine” as “an experience that binds experience F E to experience” and refuses to be “turned into an abstraction.” Both reconfigure the ground of moral theory by highlighting the cultural bias or particularity encompassed in claims of Feminism, like philosophy, can be done in a variety of different objectivity or universality. -
Bargaining with Neighbors: Is Justice Contagious? (1999)
Journal of Philosophy, Inc. Bargaining with Neighbors: Is Justice Contagious? Author(s): Jason Alexander and Brian Skyrms Source: The Journal of Philosophy, Vol. 96, No. 11 (Nov., 1999), pp. 588-598 Published by: Journal of Philosophy, Inc. Stable URL: http://www.jstor.org/stable/2564625 Accessed: 12-05-2016 19:03 UTC Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at http://about.jstor.org/terms JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Journal of Philosophy, Inc. is collaborating with JSTOR to digitize, preserve and extend access to The Journal of Philosophy This content downloaded from 128.91.58.254 on Thu, 12 May 2016 19:03:20 UTC All use subject to http://about.jstor.org/terms 588 THEJOURNAL OF PHILOSOPHY BARGAINING WITH NEIGHBORS: IS JUSTICE CONTAGIOUS ? What is justice? The question is llarder to answer in some cases than in others. We focus on the easiest case of dis- tributive justice. Two individuals are to decide how to dis- tribute a windfall of a certain amount of money. Neither is especially entitled, or especially needy, or especially anything their positions are entirely symmetric. Their utilities derived from the dis- tribution may be taken, for all intents and purposes, simply as the amount of money received. -
Bulletin of the Santayana No
Overheard in Seville bulletin of the Santayana No. 1 Fall 1983 OVERHEARD IN SEVILLE Bulletin of the Santayana Society NO. 1 FALL 1983 CONTENTS Table of Contents i Illustration ......... ... .......... ii Santayana^s Idea of the Tragic . .......... 1 On Grue and Bleen . 12 Announcement of Annual Meeting ........ 17 Bibliographic Update . 18 The Santayana Edition . 20 Edited for the Santayana Society by Angus Kerr-Lawson, Department of Pure Mathematics, University of Waterloo, Waterloo, Ontario, Canada N2L-3T2, and by Herman J. Saatkamp Jr., Department of Philosophy, University of Tampa, Tampa, Florida 33606. All communications should be sent to one of the editors. The bulletin will appear annually; it is formatted and composed for typesetting with Waterloo Script, and is printed by Graphic Services, University of Waterloo. 226 Ethicei Pan IV* punk, qui alter! injuriam fecit, eandcm civi indignari non dko, quia non Odio perdta ad perdendum civem, fed pietate mota ewi- dem punit. PROPOSITIO LH. Acquiefcentia in fe ipfo ex Ratione ortri pteft, et w fokf m- quicfcentia, qua ex Ratione oritur, fumma eft, qua pteft dari. DIMOMITIATIO, Acquiefcentia in fe ipfo eft Lsetitia orta ex eo, quod homo fe ipfum fuamque agendi potentiam contemplatur (per %$. JfeSt. Defn.). At vera hominis agendi potentia feu virtua eft ipia Ratio (per Prop. 3. p. $.), quam homo dare et diftinde contemplatur (per Prop. 40. et 43. p. a.); Ergo Acquiefcentia in fe ipfo ex Ratione oritur. Deinde nihil homo, dum fe ipfum contemplatur, clave et diftin&e, five adequate percipit, nifi ea, qua; ex ipfiui agendi po tentia fequuntur (per Befin. a. p. 3.), hoc eft (per Prof. -
Emergence of Cooperation and Evolutionary Stability in Finite
letters to nature populations may decrease cooperation and lead to more frequent 10. Clutton-Brock, T. H. et al. Selfish sentinels in cooperative mammals. Science 284, 1640–1644 (1999). escalations of conflicts in situations in which cooperation persists in 11. Seyfarth, R. M. & Cheney, D. L. Grooming alliances and reciprocal altruism in vervet monkeys. Nature 308, 541–543 (1984). well-mixed populations. Thus, spatial structure may not be as 12. Milinski, M. Tit for tat in sticklebacks and the evolution of cooperation. Nature 325, 433–435 (1987). universally beneficial for cooperation as previously thought. A 13. Milinski, M., Lu¨thi, J. H., Eggler, R. & Parker, G. A. Cooperation under predation risk: experiments on costs and benefits. Proc. R. Soc. Lond. B 264, 831–837 (1997). 14. Turner, P. E. & Chao, L. Prisoner’s dilemma in an RNA virus. Nature 398, 441–443 (1999). Methods 15. Heinsohn, R. & Parker, C. Complex cooperative strategies in group-territorial African lions. Science Spatial structure 269, 1260–1262 (1995). In our spatially structured populations, individuals are confined to sites on regular 16. Clutton-Brock, T. Breeding together: kin selection and mutualism in cooperative vertebrates. Science 100 £ 100 lattices with periodic boundary conditions, and interact with their neighbours. 296, 69–72 (2002). We used square lattices with N ¼ 4 and N ¼ 8 neighbours, hexagonal lattices (N ¼ 6) and 17. Hofbauer, J. & Sigmund, K. Evolutionary Games and Population Dynamics (Cambridge Univ. Press, triangular lattices (N ¼ 3). Whenever a site x is updated, a neighbour y is drawn at random Cambridge, UK, 1998). among all N neighbours; the chosen neighbour takes over site x with probability 18. -
ON ZERMELO's THEOREM Rabah Amir Igor V. Evstigneev (Communicated by Alberto A. Pinto) 1. in This Note We Generalize the Follow
Journal of Dynamics and Games doi:10.3934/10.3934/jdg.2017011 c American Institute of Mathematical Sciences ON ZERMELO'S THEOREM Rabah Amir∗ Department of Economics, University of Iowa Iowa City, IA 52242-1994, USA Igor V. Evstigneev Department of Economics, University of Manchester Oxford Road, Manchester, M13 9PL, UK (Communicated by Alberto A. Pinto) Abstract. A famous result in game theory known as Zermelo's theorem says that \in chess either White can force a win, or Black can force a win, or both sides can force at least a draw". The present paper extends this result to the class of all finite-stage two-player games of complete information with alternating moves. It is shown that in any such game either the first player has a winning strategy, or the second player has a winning strategy, or both have unbeatable strategies. 1. In this note we generalize the following proposition usually referred to in the modern game-theoretic literature as Zermelo's theorem (see the paper by Zermelo [9] and its discussion and further references in Schwalbe and Walker [8]). Theorem 1. In chess either White has a winning strategy, or Black has a winning strategy, or both have strategies guaranteeing at least a draw. The main result of this paper is as follows. Theorem 2. In any finite-stage two-player game with alternating moves, either (i) player 1 has a winning strategy, or (ii) player 2 has a winning strategy, or (iii) both have unbeatable strategies. We emphasize that in this theorem we speak of any finite-stage two-player game with alternating moves, with any action sets and any real-valued payoff functions, so that the formulation of the result has a maximum level of generality.1 The notions of unbeatable and winning strategies are defined in the general context as follows. -
Building a Champion Level Computer Poker Player
University of Alberta Library Release Form Name of Author: Michael Bradley Johanson Title of Thesis: Robust Strategies and Counter-Strategies: Building a Champion Level Computer Poker Player Degree: Master of Science Year this Degree Granted: 2007 Permission is hereby granted to the University of Alberta Library to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatever without the author’s prior written permission. Michael Bradley Johanson Date: Too much chaos, nothing gets finished. Too much order, nothing gets started. — Hexar’s Corollary University of Alberta ROBUST STRATEGIES AND COUNTER-STRATEGIES: BUILDING A CHAMPION LEVEL COMPUTER POKER PLAYER by Michael Bradley Johanson A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science. Department of Computing Science Edmonton, Alberta Fall 2007 University of Alberta Faculty of Graduate Studies and Research The undersigned certify that they have read, and recommend to the Faculty of Graduate Studies and Research for acceptance, a thesis entitled Robust Strategies and Counter-Strategies: Building a Champion Level Computer Poker Player submitted by Michael Bradley Johanson in partial fulfillment of the requirements for the degree of Master of Science. Michael Bowling Supervisor Duane Szafron Michael Carbonaro External Examiner Date: To my family: my parents Brad and Sue Johanson, and my brother, Jeff Johanson. -
Game Values and Equilibria for Undetermined Sentences of Dependence Logic
Game values and equilibria for undetermined sentences of Dependence Logic MSc Thesis (Afstudeerscriptie) written by Pietro Galliani (born December 22, 1983 in Bologna, Italy) under the supervision of Prof Dr Jouko V¨a¨an¨anen, and submitted to the Board of Examiners in partial fulfillment of the requirements for the degree of MSc in Logic at the Universiteit van Amsterdam. Date of the public defense: Members of the Thesis Committee: September 12, 2008 Prof Dr Jouko V¨a¨an¨anen Prof Dr Piet Rodenburg Prof Dr Ulle Endriss Prof Dr Peter van Emde Boas Contents 1 Introduction.............................. 1 2 Game-theoretical semantics and Independence-Friendly logic .. 2 2.1 Preliminaries ......................... 2 2.2 Game-theoretic semantics for first-order logic . 4 2.3 Games of Imperfect Information, IF-Logic, and DF-Logic 8 2.4 AcompositionalsemanticsforIFLogic . 13 2.5 Dependence atomic formulas and Dependence Logic . 19 2.6 Independenceatomicformulas . 20 2.7 Infinitarydependenceformulas . 21 3 Behavioral strategies for undetermined formulas . ... 23 3.1 BehavioralstrategiesandGamevalues . 23 3.2 Theminimaxtheorem .................... 26 3.3 Anexample.......................... 31 3.4 Infinitemodels ........................ 32 3.5 Therangeofthevaluefunction . 34 4 Probabilistic Dependence Logic and its semantics . .. 41 4.1 Thegame Hµ(φ)....................... 41 4.2 Thevalueoffirst-orderformulas . 57 4.3 ThevalueofDependenceformulas . 60 4.4 Thevaluesofconjunctions. 64 4.5 Approximate Functional Dependency in Database Theory 67 5 Extensions............................... 69 5.1 Game-theoreticnegation. 69 5.2 Linearimplication ...................... 74 5.3 Dynamic Probabilistic Dependence Logic . 76 1 Abstract Logics of imperfect information, such as IF-Logic or Dependence Logic, admit a game-theoretic semantics: every formula φ corresponds to a game H(φ) between a Verifier and a Falsifier, and the formula is true [false] if and only if the Verifier [Falsifier] has a winning strategy. -
Varying Domain Representations in Hagl Extending the Expressiveness of a DSL for Experimental Game Theory
Varying Domain Representations in Hagl Extending the Expressiveness of a DSL for Experimental Game Theory Eric Walkingshaw and Martin Erwig School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA Abstract. Experimental game theory is an increasingly important re- search tool in many fields, providing insight into strategic behavior through simulation and experimentation on game theoretic models. Un- fortunately, despite relying heavily on automation, this approach has not been well supported by tools. Here we present our continuing work on Hagl, a domain-specific language embedded in Haskell, intended to dras- tically reduce the development time of such experiments and support a highly explorative research style. In this paper we present a fundamental redesign of the underlying game representation in Hagl. These changes allow us to better utilize do- main knowledge by allowing different classes of games to be represented differently, exploiting existing domain representations and algorithms. In particular, we show how this supports analytical extensions to Hagl, and makes strategies for state-based games vastly simpler and more efficient. 1 Introduction Game theory has traditionally been used as an analytical framework. A game is a formal model of a strategic situation in which players interact by making moves, eventually achieving a payoff in which each player is awarded a value based on the outcome of the game. Classical game theorists have derived many ways of solving such situations, by mathematically computing “optimal” strategies of play, usually centered around notions of stability or equilibrium [1]. The derivation of these optimal strategies, however, almost always assumes perfectly rational play by all players—an assumption which rarely holds in prac- tice.