Download or read book Group Size Effect on Cooperation in One Shot Social Dilemmas II Curvilinear Effect written by Valerio Capraro and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a world in which many pressing global issues require large scale cooperation, understanding the group size effect on cooperative behavior is a topic of central importance. Yet, the nature of this effect remains largely unknown, with lab experiments insisting that it is either positive or negative or null, and field experiments suggesting that it is instead curvilinear. Here we shed light on this apparent contradiction by considering a novel class of public goods games inspired to the realistic scenario in which the natural output limits of the public good imply that the benefit of cooperation increases fast for early contributions and then decelerates. We report on a large lab experiment providing evidence that, in this case, group size has a curvilinear effect on cooperation, according to which intermediate-size groups cooperate more than smaller groups and more than larger groups. In doing so, our findings help fill the gap between lab experiments and field experiments and suggest concrete ways to promote large scale cooperation among people.
Download or read book Group Size Effect on Cooperation in One Shot Social Dilemmas written by Helene Barcelo and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social dilemmas are central to human society. Depletion of natural resources, climate protection, security of energy supply, and workplace collaborations are all examples of social dilemmas. Since cooperative behaviour in a social dilemma is individually costly, Nash equilibrium predicts that humans should not cooperate. Yet experimental studies show that people do cooperate even in anonymous one-shot interactions. In spite of the large number of participants in many modern social dilemmas, little is known about the effect of group size on cooperation. Does larger group size favour or prevent cooperation? We address this problem both experimentally and theoretically. Experimentally, we find that there is no general answer: it depends on the strategic situation. Specifically, we find that larger groups are more cooperative in the Public Goods game, but less cooperative in the N-person Prisoner's dilemma. Theoretically, we show that this behaviour is not consistent with either the Fehr & Schmidt model or (a one-parameter version of) the Charness & Rabin model, but it is consistent with the cooperative equilibrium model introduced by the second author.
Download or read book Social Dilemmas and Cooperation written by Ulrich Schulz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: A social dilemma is a game which at first glance has only inefficient solutions. If efficient solutions are to be achieved, some kind of cooperation among the players is required. This book asks two basic questions, closely intertwined with each other: 1. How is cooperation possible among rational players in such a social dilemma? Which changes in the social context of a social dilemma situation are necessary in order for players to rationally choose the cooperative option? 2. How do real players actually behave in social dilemma situations? Do they behave "rationally" at all? Or, conversely, what kind of reasoning, attitudes, emotions, etc. shape the behavior of real players in social dilemmas? What kind of interventions, what kind of internal mechanisms within a real group may change players' willingness to cooperate? These two general questions mark the broad spectrum of the problem which has been, over the last three decades, investigated in various disciplines, and which has brought many new ideas and new observations into the study of the old question of social order in a world of born egoists. Accordingly, this volume contains contributions by biologists, sociologists, political scientists, economists, mathematicians, psychologists, and philosophers.
Download or read book Game Theoretical Models in Biology written by Mark Broom and published by CRC Press. This book was released on 2013-03-27 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the major topics of evolutionary game theory, Game-Theoretical Models in Biology presents both abstract and practical mathematical models of real biological situations. It discusses the static aspects of game theory in a mathematically rigorous way that is appealing to mathematicians. In addition, the authors explore many applications of game theory to biology, making the text useful to biologists as well. The book describes a wide range of topics in evolutionary games, including matrix games, replicator dynamics, the hawk-dove game, and the prisoner’s dilemma. It covers the evolutionarily stable strategy, a key concept in biological games, and offers in-depth details of the mathematical models. Most chapters illustrate how to use MATLAB® to solve various games. Important biological phenomena, such as the sex ratio of so many species being close to a half, the evolution of cooperative behavior, and the existence of adornments (for example, the peacock’s tail), have been explained using ideas underpinned by game theoretical modeling. Suitable for readers studying and working at the interface of mathematics and the life sciences, this book shows how evolutionary game theory is used in the modeling of these diverse biological phenomena.
Download or read book The Critical Mass in Collective Action written by Gerald Marwell and published by Cambridge University Press. This book was released on 1993-03-26 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of collective action is that each group member wants other members to make necessary sacrifices while he or she 'free rides', reaping the benefits of collective action without doing the work. Therefore, no one does the work and the common interest is not realized. This book analyses the social pressure whereby groups solve the problem of collective action.
Download or read book Social Dilemmas written by Samuel S Komorita and published by Routledge. This book was released on 2019-04-16 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing real-world examples, Komorita and Parks illustrate both the theoretical and the ecological relevance of social dilemmas, focusing on "exchange theory" to explain how conflicts are resolved. This book is appropriate for students of psychology, political science, and sociology.
Download or read book Experimental Social Dilemmas written by H. A. M. Wilke and published by Peter Lang Gmbh, Internationaler Verlag Der Wissenschaften. This book was released on 1986 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the papers on social dilemmas were presented at a conference on social dilemmas that was held at the University of Groningen in the spring of 1984. Social dilemmas are interpersonal situations that are characterized by a conflict between private and collective interest, i.e. in attempting to further their private interests, participants may end up worser off than if they had abandonned self-interest and worked for the good of the community. The chapters in this book describe efforts made by social psychologists, sociologists, and political scientists to advance our understanding of the psychological processes that influence people's behavior in social dilemmas. It is assumed that understanding of these processes can help our search for solutions.
Download or read book Cooperative Behavior in Social Dilemmas written by Yeow Siah Cha and published by . This book was released on 1996 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Social Dilemmas written by Paul A. M. Van Lange and published by Oxford University Press. This book was released on 2014 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a psychological overview of research on human cooperation, while discussing evolutionary and cultural perspectives, along with applications in the management, environment, national security, and health.
Download or read book The Evolution of Cooperation written by Robert Axelrod and published by Basic Books. This book was released on 2009-04-29 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: A famed political scientist's classic argument for a more cooperative world We assume that, in a world ruled by natural selection, selfishness pays. So why cooperate? In The Evolution of Cooperation, political scientist Robert Axelrod seeks to answer this question. In 1980, he organized the famed Computer Prisoners Dilemma Tournament, which sought to find the optimal strategy for survival in a particular game. Over and over, the simplest strategy, a cooperative program called Tit for Tat, shut out the competition. In other words, cooperation, not unfettered competition, turns out to be our best chance for survival. A vital book for leaders and decision makers, The Evolution of Cooperation reveals how cooperative principles help us think better about everything from military strategy, to political elections, to family dynamics.
Download or read book Group Size Effects and Critical Mass in Public Goods Games written by María Pereda and published by . This book was released on 2019 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding whether the size of the interacting group has an effect on cooperative behavior has been a major topic of debate since the seminal works on cooperation in the 1960s. Half a century later, scholars have yet to reach a consensus, with some arguing that cooperation is harder in larger groups, while others that cooperation is easier in larger groups, and yet others that cooperation attains its maximum in intermediate size groups. Here we add to this field of work by reporting a two-treatment empirical study where subjects play a Public Goods Game with a Critical Mass, such that the return for full cooperation increases linearly for early contributions and then stabilizes after a critical mass is reached (the two treatments differ only on the critical mass). We choose this game for two reasons: it has been argued that it approximates real-life social dilemmas; previous work suggests that, in this case, group size might have an inverted-U effect on cooperation, where the pick of cooperation is reached around the critical mass. Our main innovation with respect to previous experiments is that we implement a within-subject design, such that the same subject plays in groups of different size (from 5 to 40 subjects). Groups are formed at random at every round and there is no feedback. This allows us to explore if and how subjects change their choice as a function of the size of the group. We report three main results, which partially contrast what has been suggested by previous work: in our setting (i) the critical mass has no effect on cooperation; (ii) group size has a positive effect on cooperation; (iii) the most chosen option (played by about 50% of the subjects) is All Defection, followed by All Cooperation (about 10% of the subjects), whereas the rest have a slight trend to switch preferentially from defection to cooperation as the group size increases.
Download or read book The Effect of Group Decision Making on Cooperation in Social Dilemmas written by Timothy Hopthrow and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A robust finding in social dilemma research is an increase in individual cooperative choice following group discussion about the dilemma. To elaborate the idea that this effect arises from the development of within-group consensus, groups of six made explicit group decisions about their subsequent individual choice. Perceived demonstrability of cooperativeness in the dilemma was manipulated through changes both to instructions and the incentives of the dilemma. As demonstrability decreased, so did the proportion of groups deciding to cooperate, leading to a reduction in the group discussion effect. Social decision scheme analysis supported the demonstrability-group decision hypothesis. The interaction between demonstrability, individual opinions and group process is proposed to explain the group discussion effect
Download or read book The Calculus of Selfishness written by Karl Sigmund and published by Princeton University Press. This book was released on 2016-05-31 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume looks at social dilemmas where cooperative motivations are subverted and self-interest becomes self-defeating. Sigmund, a pioneer in evolutionary game theory, uses simple and well-known game theory models to examine the foundations of collective action and the effects of reciprocity and reputation.
Download or read book People and Forests written by Clark C. Gibson and published by MIT Press. This book was released on 2000 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: People and Forests explores the complex interactions between local communities and their forests, focusing on the rules by which communities govern and manage their forest resources.
Download or read book Game Theory and Experimental Games written by Andrew M. Colman and published by Elsevier. This book was released on 2016-06-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Game Theory and Experimental Games: The Study of Strategic Interaction focuses on the development of game theory, taking into consideration empirical research, theoretical formulations, and research procedures involved. The book proceeds with a discussion on the theory of one-person games. The individual decision that a player makes in these kinds of games is noted as influential as to the outcome of these games. This discussion is followed by a presentation of pure coordination games and minimal situation. The ability of players to anticipate the choices of others to achieve a mutually beneficial outcome is emphasized. A favorable social situation is also influential in these kinds of games. The text moves forward by presenting studies on various kinds of competitive games. The research studies presented are coupled with empirical evidence and discussion designed to support the claims that are pointed out. The book also discusses several kinds of approaches in the study of games. Voting as a way to resolve multi-person games is also emphasized, including voting procedures, the preferences of voters, and voting strategies. The book is a valuable source of data for readers and scholars who are interested in the exploration of game theories.
Download or read book New Issues and Paradigms in Research on Social Dilemmas written by Anders Biel and published by Springer Science & Business Media. This book was released on 2007-11-30 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readers need look no further if they seeking an edited volume compiled to present the latest developments in the field of social dilemma research. Social dilemmas are situations when there is a conflict between self-interest and collective interest. This work examines under what circumstances people make decisions that are in line with the collective interest as well as investigating what can increase the likelihood of cooperation. Three man sections mirror the different levels of analysis: individual, group, and societal.
Download or read book The Drama of the Commons written by National Research Council and published by National Academies Press. This book was released on 2002-02-15 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "tragedy of the commons" is a central concept in human ecology and the study of the environment. It has had tremendous value for stimulating research, but it only describes the reality of human-environment interactions in special situations. Research over the past thirty years has helped clarify how human motivations, rules governing access to resources, the structure of social organizations, and the resource systems themselves interact to determine whether or not the many dramas of the commons end happily. In this book, leaders in the field review the evidence from several disciplines and many lines of research and present a state-of-the-art assessment. They summarize lessons learned and identify the major challenges facing any system of governance for resource management. They also highlight the major challenges for the next decade: making knowledge development more systematic; understanding institutions dynamically; considering a broader range of resources (such as global and technological commons); and taking into account the effects of social and historical context. This book will be a valuable and accessible introduction to the field for students and a resource for advanced researchers.
