Taking a quick look at game theory, rational egoism and the evolution of fairness.

The existence of cooperative labor relations within leading firms in South Korea, amid unfavorable national-level economic and political institutions, merits study by comparative political economists. Late industrializing Korea lacks the conditions that sustain cooperative labor relations in other nonliberal capitalist countries like Germany and Japan. More relevant, therefore, are debates over the emergence and practice of “high performance work systems” in the unfavorable environments of advanced liberal and developing country capitalism. As a successful late industrializing country that combines both advanced (...) and developing capitalism characteristics, Korea represents a useful testing ground for ideas about HPWS. This article will examine cooperation in four leading Korean firms and use the findings to advance key HPWS debates about the possibilities of participation and the conditions under which cooperation can emerge and be sustained. (shrink)

The common narrations in the main hadith books in the tradition of Ahl as-Sunnah and Shia are an essential subject of examination in determining the relations within and between sects. In the significant part of these narrations, the two madhhabs differ by attributing different meanings to the common hadiths. It is understood that Shia's practices such as walaya, the necessity of the imam, being innocent and muhaddath of the imams are proven especially in the common hadiths related to the principles (...) of faith. Aside from who is right, the meaning and wording differences in the common narrations could provide an understanding of the differences and formation processes between and within the sects. For example, the hadith of firâsah, one of the common narrations, has been discussed. An independent study concludes that the hadith of firâsah found a place in the Ahl al-Sunnah, especially in the Sufi tradition and did not pass on to the Ahl al-Sunnah from the Shia. This article has examined the common narrators of whether the hadith passed from Ahl al-Sunnah to Shia and has focused on whether there is an intellectual interaction. It has been determined that the meaning attributed to the understanding of firâsah by the Sufis among the Ahl al-Sunnah is similar to the imams' characteristic of being muhaddath in Shia. It has also been determined that the Shia made some additions to the hadith of firâsah and reached different conclusions from the Ahl as-sunnah. In addition, it has been seen that Ithnâashariya used the hadith of firâsah as evidence against other groups to confirm its justification in the sectarian divisions of the Shia. (shrink)

This paper brings the intellectual tools of cognitive science to bear on resolving the “paradox of the active user” [Interfacing Thought: Cognitive Aspects of Human–Computer Interaction, Cambridge, MIT Press, MA, USA]—the persistent use of inefficient procedures in interactive tasks by experienced or even expert users when demonstrably more efficient procedures exist. The goal of this paper is to understand the roots of this paradox by finding regularities in these inefficient procedures. We examine three very different data sets. For each data (...) set, we first satisfy ourselves that the preferred procedures used by some subjects are indeed less efficient than the recommended procedures. We then amass evidence, for each set, and conclude that when a preferred procedure is used instead of a more efficient, recommended procedure, the preferred procedure tends to have two major characteristics: (1) the preferred procedure is a well‐practiced, generic procedure that is applicable either within the same task environment in different contexts or across different task environments, and (2) the preferred procedure is composed of interactive components that bring fast, incremental feedback on the external problem states. The support amassed for these characteristics leads to a new understanding of the paradox. In interactive tasks, people are biased towards the use of general procedures that start with interactive actions. These actions require much less cognitive effort as each action results in an immediate change to the external display that, in turn, cues the next action. Unfortunately for the users, the bias to use interactive unit tasks leads to a path that requires more effort in the long run. Our data suggest that interactive behavior is composed of a series of distributed choices; that is, people seldom make a once‐and‐for‐all decision on procedures. This series of biased selection of interactive unit tasks often leads to a stable suboptimal level of performance. (shrink)

As human consumption is one of the key contributors to environmental problems, it is increasingly urgent to promote sustainable consumption. Drawing on the agentic-communal model of power, this research explores how the psychological feeling of power influences consumers’ preference for green products. We show that low power increases consumers’ preference for green products compared to high power. Importantly, we identify two factors moderating the main effect of power on green consumption. Specifically, we find that the effect of power on green (...) consumption is more salient among those with high green consumption values. In addition, the effects of power are dynamic as a function of power distance belief, such that low power promotes green consumption in the low-PDB context while high power promotes green consumption in the high-PDB context. Taken together, these findings provide novel insights into understanding green consumption from the perspectives of social power, green values, and PDB. Besides contributing to the literature, the findings have significant implications for marketers and policy-makers in promoting green campaigns, bridging the attitude-behavior gap, and building a more sustainable society. (shrink)

Search can be found in almost every cognitive activity, ranging across vision, memory retrieval, problem solving, decision making, foraging, and social interaction. Because of its ubiquity, research on search has a tendency to fragment into multiple areas of cognitive science. The proposed topic aims at providing integrative discussion of the central role of search from multiple perspectives. We focus on controlled search processes, which require a goal, uncertainty about the nature, location, or acquisition method of the objects to be searched (...) for, and a method for sampling through the search environment. While this definition of search is general and applicable to different domains, the specific mechanisms in the search process will likely differ. The goal of this issue is to compare and contrast how these search processes are similar and differ in different cognitive activities, with the goal of understanding the general nature of search in terms of the three characteristics stated above. We expect that given its cross-domain nature, the topic on search will be of broad interest to cognitive scientists, including psychologists, behavioral ecologists, computer scientists, neuroscientists, linguists, and sociologists. (shrink)

The object of the research is the processing of Yakut folk songs stored in the fund of the first Yakut composer M.N. Zhirkov in the National Library of the Republic of Sakha. The subject of the study is the manuscript "100 Yakut songs". Some of them were published in the collections "Sakha Yryalara" and "Yakut folk Songs". Special attention in the comparative aspect is paid to the already published samples, in particular, in the music collections of A.V. Scriabin and F.G. (...) Kornilov. The article examines the internal content of the treatments of the songs included in the manuscript "100 Yakut songs", expert reviews, testimonies of contemporaries. The article for the first time raises the problem of co-authorship of tunes and completed treatments, some of which are folk tunes. Samples characterized by a developed melodic structure are considered as the result of the melodic creativity of amateur authors, as well as the impact of musical professionalism of the European type. As a result of the analysis of M.N. Zhirkov's handwritten heritage, it was found that many treatments of Yakut folk songs were performed by him in collaboration with Moscow composers G.I. Litinsky and G.G. Lobachev. Also, for the first time, a comparative analysis of the corpus of song treatments from M.N. Zhirkov's manuscript "100 Yakut songs", which is stored in the collections of the National Library of the RS, was carried out. (shrink)

The subject of the study is the research work of M.N. Zhirkov, which became the first monographic study of the musical culture of the Yakuts. The object of the study is the problems of musicology first posed by the author of this study. The article discusses such aspects as the difficult fate of the manuscript of M.N. Zhirkov's research, which was unpublished for a long time, and at the first publication was not published in its full form, in addition, the (...) experience of a new reprint of this work in the 9th volume of M.N. Zhirkov's "Collected Works". Special attention is paid to those areas of his work that at that time were in the circle of the most pressing theoretical problems of musical culture of the peoples of the former Soviet Union. The main conclusions of the study are the author's generalizations of the fundamental results of M.N. Zhirkov's work, which at the time of writing this work were advanced not only in terms of the level of development of Russian musicology, but now look quite modern in their relevance and fundamental nature. A special contribution of the author to the topic under development is the analysis of those parts of the study that were not published in the first publication of 1981. The novelty of the study lies in the fact that for the first time attention is drawn to the original full text of the original version of the "Yakut folk Music" by M.N.Zhirkov. The article summarizes the author's experience of the new edition of this unique work. (shrink)

The article is devoted to the life and work of the first Even composer P.M. Starostin in the context of the development of national composition schools of the East. The purpose of the study is to review the life and work of the Even composer P.M. Starostin. The object of the study is the professional musical art of the Even people, the subject of the study is the creative heritage of the first Even composer. The research is based on comparative (...) and typological methods, taking into account the theoretical developments of Russian musicologists in the field of studying the patterns of development of young national composer schools. The main conclusions include the following. The formation of the first Even composer P.M. Starostin took place within the framework of the Yakut national School of composition. The main source of P.M. Starostin's creativity was the rich Even folklore: epic tales, ritual genres, song lyrics. The creative heritage of P.M. Starostin is distinguished by originality and genre originality: from large forms – operas and cantatas to chamber-vocal works and compositions for children. The geography of the spread of young national composer schools has advanced to the north-east of Russia, where the Yakut National Composer School is currently functioning quite actively. The Yakut National School of Composition is already becoming a new center itself, on the periphery of which the prerequisites for the formation of national composition schools of the small peoples of the North living in the Arctic zone are being formed. The experience of reviewing the work of the first Even composer P.M. Starostin, considered by us in the article, marks this process. The novelty of the research lies in the fact that for the first time data on the life and work of the Even composer P.M. Starostin are introduced into scientific circulation. Until now, his name has remained virtually unknown to musicology. Such a review is being conducted for the first time. (shrink)

The article is devoted to an important area of scientific research related to the history and culture of Yakutia. Written monuments of historical and cultural heritage, along with material ones, occupy their permanent place. The solution to the problem of their preservation and interpretation is inextricably linked with publishing activities – modern technical capabilities increase its effectiveness. In the article we study the existing experience in this field by the example of the publication of Russian cursive sources of the XVII (...) century about the history of Yakutia, as well as cultural heritage. The object of the study is the historical and cultural heritage of Yakutia. The subject of the study ate the samples in various forms. The research summarized the experience of publishing historical and cultural heritage monuments on the example of Russian cursive documents of the XVII century about Yakutia, as well as the works of the first Yakut composer M.N. Zhirkov. Since they are of great value as samples of archival documents reflecting regional specifics, we have carried out work to determine their historical significance for the culture of Yakutia. In this article, based on an assessment of the internal content of the collections considered as examples and the quality of their publication, recommendations have been developed to improve further work in this direction. Undoubtedly, further work should be continued to identify such written monuments that require special storage and interpretation, have great historical and cultural value for the Yakut people, as well as transfer to modern media of this information, taking into account the necessary publication rules. For the first time, the question of creating a pan-Yakut electronic database of written monuments of historical and cultural heritage of Yakutia was raised. (shrink)

This paper focuses on the relation of heuristic search and level of intelligence in cognitive computation systems. The paper begins with a review of the fundamental properties of a cognitive computation system, which is defined generally as a control system that generates goal-directed actions in response to environmental inputs and constraints. An important property of cognitive computations is the need to process local cues in symbol structures to access and integrate distal knowledge to generate a response. To deal with uncertainties (...) involved in this local-to-distal processing, the system needs to perform heuristic search to locate and integrate the right set of distal structures. The level of intelligence of the system depends critically on the efficiency of the heuristic search process. It is argued that, for a bounded rationality system, the level of intelligence does not depend on how much search it needs to do to accomplish a task. Rather, the level of intelligence depends on how much search it does not need to do to achieve the same level of performance. Examples were discussed to illustrate this idea. The first two examples show how machines that play games like tic-tac-toe and chess rely heavily on the efficiency of the heuristic search algorithm to achieve better performance, demonstrating the relation of heuristic search and intelligence in a bounded rationality system. The second example shows how humans adapt to different information ecologies to perform information search on the Internet and how their performance improves over time, demonstrating how heuristic search can be improved in an adaptive rationality system. The two examples demonstrate how better search control knowledge and representations of task environment can improve the efficiency of heuristic search, thereby improving the intelligence of the system. (shrink)

The practice of mathematical word problem is ubiquitous and thought to impact academic achievement. However, the underlying neural mechanisms are still poorly understood. In this study, we investigate how lexical consistency of word problem description is modulated in adults' brain responses during word problem solution. Using functional magnetic resonance imaging methods, we examined compare word problems that included relational statements, such as “A dumpling costs 9 dollars. A wonton is 2 dollars less than a dumpling. How much does a wonton (...) cost?” and manipulated lexical consistency and problem operation. We found a consistency by operation interaction in the widespread fronto-insular-parietal activations, including the anterior insula, dorsoanterior cingulate cortex, middle frontal gyrus, and intraparietal sulcus, such that inconsistent problems engaged stronger activations than consistent problems for addition, whereas the consistency effect was inverse for subtraction. Critically, these results were more salient in the less successful problem solvers than their more successful peers. Our study is the first to demonstrate that lexical consistency effects on arithmetic neural networks are modulated during reading word problem that required distinct arithmetic operations. More broadly, our study has strong potentials to add linkage between neuroscience and education by remediating deficits and enhance instruction design in the school curriculum. (shrink)

Before the advent of fibrinolytic therapy as a gold standard method of care for cases of acute ischemic stroke in Romania, issues regarding legal medicine aspects involved in this area of medical expertise were already presented and, in the majority of cases, the doctors seem to be unprepared for these situations. The present research illustrates some of the cases in which these aspects were involved, that adressed a clinical center having 6 years of professional experience in the application of fibrinolytic (...) treatment for stroke. The following cases report either situations in which the afore mentioned therapy was not rightfully administrated or legal aspects regarding the obtainment of informed consent. Obtaining informed consent is a mandatory procedure, which takes time, to the detriment of application of fibrinolytic treatment. (shrink)

This volume presents the lecture notes of short courses given by three leading experts in mathematical logic at the 2012 Asian Initiative for Infinity Logic Summer School. The major topics cover set-theoretic forcing, higher recursion theory, and applications of set theory to C*-algebra. This volume offers a wide spectrum of ideas and techniques introduced in contemporary research in the field of mathematical logic to students, researchers and mathematicians.

This volume is based on the talks given at the Workshop on Infinity and Truth held at the Institute for Mathematical Sciences, National University of Singapore, from 25 to 29 July 2011. The chapters are by leading experts in mathematical and philosophical logic that examine various aspects of the foundations of mathematics. The theme of the volume focuses on two basic foundational questions: (i) What is the nature of mathematical truth and how does one resolve questions that are formally unsolvable (...) within the Zermelo Fraenkel Set Theory with the Axiom of Choice, and (ii) Do the discoveries in mathematics provide evidence favoring one philosophical view over others? These issues are discussed from the vantage point of recent progresses in foundational studies. The final chapter features questions proposed by the participants of the Workshop that will drive foundational research. The wide range of topics covered here will be of benefit to students, researchers and mathematicians interested in the foundations of mathematics. (shrink)

Constraints and dependencies among the elements of embodied cognition form patterns or microstrategies of interactive behavior. Hard constraints determine which microstrategies are possible. Soft constraints determine which of the possible microstrategies are most likely to be selected. When selection is non‐deliberate or automatic the least effort microstrategy is chosen. In calculating the effort required to execute a microstrategy each of the three types of operations, memory retrieval, perception, and action, are given equal weight; that is, perceptual‐motor activity does not have (...) a privileged status with respect to memory. Soft constraints can work contrary to the designer's intentions by making the access of perfect knowledge in‐the‐world more effortful than the access of imperfect knowledge in‐the‐head. These implications of soft constraints are tested in two experiments. In experiment 1 we varied the perceptual‐motor effort of accessing knowledge in‐the‐world as well as the effort of retrieving items from memory. In experiment 2 we replicated one of the experiment 1 conditions to collect eye movement data. The results suggest that milliseconds matter. Soft constraints lead to a reliance on knowledge in‐the‐head even when the absolute difference in perceptual‐motor versus memory retrieval effort is small, and even when relying on memory leads to a higher error rate and lower performance. We discuss the implications of soft constraints for routine interactive behavior, accounts of embodied cognition, and tool and interface design. (shrink)

Constraints and dependencies among the elements of embodied cognition form patterns or microstrategies of interactive behavior. Hard constraints determine which microstrategies are possible. Soft constraints determine which of the possible microstrategies are most likely to be selected. When selection is non-deliberate or automatic the least effort microstrategy is chosen. In calculating the effort required to execute a microstrategy each of the three types of operations, memory retrieval, perception, and action, are given equal weight; that is, perceptual-motor activity does not have (...) a privileged status with respect to memory. Soft constraints can work contrary to the designer's intentions by making the access of perfect knowledge in-the-world more effortful than the access of imperfect knowledge in-the-head. These implications of soft constraints are tested in two experiments. In experiment 1 we varied the perceptual-motor effort of accessing knowledge in-the-world as well as the effort of retrieving items from memory. In experiment 2 we replicated one of the experiment 1 conditions to collect eye movement data. The results suggest that milliseconds matter. Soft constraints lead to a reliance on knowledge in-the-head even when the absolute difference in perceptual-motor versus memory retrieval effort is small, and even when relying on memory leads to a higher error rate and lower performance. We discuss the implications of soft constraints for routine interactive behavior, accounts of embodied cognition, and tool and interface design. (shrink)

Background: This article aims to review research manuscripts in the past 5 years that focus on the effects of debt on depression, anxiety, stress, or suicide ideation in Asian countries.Methods: A search for literature based on the PRISMA guidelines was conducted on Medline, PubMed, Web of Science, Scopus, and ScienceDirect, resulting in nine manuscripts meeting inclusion criteria. The studies were conducted in Thailand, Korea, Singapore, Pakistan, India, Cambodia, and China.Results: The findings of the studies show that there is evidence to (...) support that being in debt is related to Asian participants experiencing depression, anxiety, stress, or suicide ideation. However, the studies are limited to quantitative studies only. The definition of debt is also unclear in most manuscripts. Few manuscripts also examined how other factors influence the relationship between debt and mental illness.Conclusion: There are limited studies on the psychological effects of debt on the Asian population. Future studies should focus on the relationship between debt and psychological well-being among this population. (shrink)

In this study, we used a word search puzzle paradigm to investigate age differences in the rate of information gain and the cues used to make patch-departure decisions in information foraging. The likelihood of patch departure increased as the profitability of the patch decreased generally. Both younger and older adults persisted past the point of optimality as defined by the marginal value theorem, which assumes perfect knowledge of the foraging ecology. Nevertheless, there was evidence that adults were rational in terms (...) of being sensitive to the change in RG for making the patch-departure decisions. However, given the limitations in cognitive resources and knowledge about the ecology, the estimation of RG may not be accurate. Younger adults were more likely to leave the puzzle as the long-term RG incrementally decreased, whereas older adults were more likely to leave the puzzle as the local RG decreased. However, older adults with better executive control were more likely to adjust their likelihood of patch-departure decisions to the long-term change in RG. Thus, age-dependent reliance on the long-term or local change in RG to make patch-departure decisions might be due to individual differences in executive control. (shrink)

Robustness has long been recognized as an important parameter for evaluating game-theoretic results, but talk of ‘robustness’ generally remains vague. What we offer here is a graphic measure for a particular kind of robustness (‘matrix robustness’), using a three-dimensional display of the universe of 2 × 2 game theory. In such a measure specific games appear as specific volumes (Prisoner’s Dilemma, Stag Hunt, etc.), allowing a graphic image of the extent of particular game-theoretic effects in terms of those games. The (...) measure also allows for an easy comparison between different effects in terms of matrix robustness. Here we use the measure to compare the robustness of Tit for Tat’s well-known success in spatialized games (Axelrod, R. (1984). The evolution of cooperation . New York: Basic Books; Grim, P. et al. (1998). The philosophical computer: Exploratory essays in philosophical computer modeling . Cambridge, Mass: MIT Press) with the robustness of a recent game-theoretic model of the contact hypothesis regarding prejudice reduction (Grim et al. 2005. Public Affairs Quarterly, 19 , 95–125). (shrink)

To understand the meaning of evolutionary equilibria, it is necessary to comprehend the ramifications of the evolutionary model. For instance, a full appreciation of Axelrod's The Evolution of Cooperation requires that we identify assumptions under which conditionally cooperative strategies, like Tit For Tat, are and are not evolutionarily stable. And more generally, when does stability fail? To resolve these questions we re-examine the very foundations of the evolutionary model. The results of this paper can be analytically separated into three parts. (...) The first part is conceptual: it identifies the evolutionary model's assumptions and shows how different assumptions imply different types of evolutionary stability. The second part is deductive: it establishes necessary and sufficient conditions for the types of evolutionary stability identified in the first part, and demonstrates in which games these kinds of stability can (and cannot) be attained. The third and final part is applied: it relates the general findings (which are independent of the specific payoffs of any particular evolutionary game) to the issue of the evolutionary stability of cooperation. Results on cooperation appear throughout the paper as they both exemplify and motivate the general results. These results essentially explain when cooperation is and is not stable, and why, thus shedding new light on the meaning and applicability of Axelrod's widely known claims. (shrink)

The iterated Prisoner’s Dilemma has become the standard model for the evolution of cooperative behavior within a community of egoistic agents, frequently cited for implications in both sociology and biology. Due primarily to the work of Axelrod (1980a, 198Ob, 1984, 1985), a strategy of tit for tat (TFT) has established a reputation as being particularly robust. Nowak and Sigmund (1992) have shown, however, that in a world of stochastic error or imperfect communication, it is not TFT that finally triumphs in (...) an ecological model based on population percentages (Axelrod and Hamilton 1981), but ‘generous tit for tat’ (GTFT), which repays cooperation with a probability of cooperation approaching 1 but forgives defection with a probability of l/3. In this paper, we consider a spatialized instantiation of the stochastic Prisoner’s Dilemma, using two-dimensional cellular automata (Wolfram, 1984, 1986; Gutowitz, 1990) to model the spatial dynamics of populations of competing strategies. The surprising result is that in the spatial model it is not GIFT but still more generous strategies that are favored. The optimal strategy within this spatial ecology appears to be a form of ‘bending over backwards’, which returns cooperation for defection with a probability of 2/3 - a rate twice as generous as GTFT. (shrink)

This essay makes three claims about preventive war, which is demarcated from preemptive war and is part of a broader class of ?anticipatory? wars. Anticipatory wars, but especially preventive war, are ?hard cases? for traditional Just War theory; other puzzles for this tradition include nuclear deterrence, humanitarian intervention, and provability a priori of the success of Tit-for-Tat. First, and despite strong assertions to the contrary, it is far from clear that preventive war is absolutely prohibited in traditional Just War Theory, (...) and it is also dubious that it is in all cases ?clearly illegal?. Second, the morality of both preemptive and preventive wars is shown to turn on epistemological considerations: on what degree and kind of justification the primary metaphysical facts of threat can be reasonably believed. Third, an argument is made that whatever epistemic threshold is held to be necessary, some preventive wars will exceed it, and that this is more likely with advancing technologies of information acquisition. Finally, the common argument that allowing all nations to follow policies of preventive war would result in more wars than barring such policies is shown to be mistaken by simulations in game theory. Suggestions are made about the derivation of traditional Just War criteria from more basic moral principles, and about their subtle failures as jointly necessary conditions for the morality of war. (shrink)

We have argued for an urgent need for moral bioenhancement; that human moral psychology is limited in its ability to address current existential threats due to the evolutionary function of morality to maximize cooperation in small groups. We address here Powell and Buchanan's novel objection that there is an ‘inclusivist anomaly’: humans have the capacity to care beyond in-groups. They propose that ‘exclusivist’ morality is sensitive to environmental cues that historically indicated out-group threat. When this is not present, we are (...) inclusivist. They conclude that moral bioenhancement is unnecessary or less effective than socio-cultural interventions. We argue that Powell and Buchanan underestimate the hard-wiring features of moral psychology; their appeal to adaptively plastic, conditionally expressed responses accounts for only a fragment of our moral psychology. In addition to restrictions on our altruistic concern that their account addresses – such as racism and sexism – there are ones it is ill-suited to address: that our concern is stronger for kin and friends and for concrete individuals rather than for statistical lives; also our bias towards the near future. Hard-wired features of our moral psychology that are not clearly restrictions in altruistic concern also include reciprocity, tit-for-tat, and others. Biomedical means are not the only, and maybe not the most important, means of moral enhancement. Socio-cultural means are of great importance and there are currently no biomedical interventions for many hard-wired features. Nevertheless research is desirable because the influence of these features is greater than our critics think. (shrink)

Innovation ecosystems are formed by interconnected firms that coalesce in interdependent networks to jointly create value. Such ecosystems rely on the norm of reciprocity—the give-and-take ethos of sharing knowledge-based resources. It is well established that an ecosystem firm can increase its competitive advantage by increasing interconnectedness with partners. However, much research has focused heavily on the positive role of inbound openness or ‘taking’ resources from ecosystem partners. The positive role of outbound openness or ‘giving’ resources to ecosystem partners remained less (...) explored and often misunderstood as eroding competitive advantage. We address this gap by first developing a conceptual model about the mediating role of inbound openness and outbound openness in the relationship between a firm’s ecosystem interconnectedness and competitive advantage. We then test this model on a large sample (_n_ = 794 managers) from Silicon Valley (USA) and Macquarie Business Park (Australia). Results indicate that outbound openness is a more important mediator than inbound openness for ecosystem firms seeking competitive advantage. Our findings suggest that the effect of outbound openness goes beyond merely generating tit-for-tat reciprocity to generating strategic benefits in their own right. The study adds to knowledge about the ethics of innovation ecosystems by showing that outbound openness to partners improves competitive advantage. Ecosystem firms, thus, do well by doing good when they increase their outbound openness. (shrink)

Is capitalism inherently predatory? Must there be winners and losers? Is public interest outdated and free-riding rational? Is consumer choice the same as self-determination? Must bargainers abandon the no-harm principle? Prisoners of Reason recalls that classical liberal capitalism exalted the no-harm principle. Although imperfect and exclusionary, modern liberalism recognized individual human dignity alongside individuals' responsibility to respect others. Neoliberalism, by contrast, views life as ceaseless struggle. Agents vie for scarce resources in antagonistic competition in which every individual seeks dominance. This (...) political theory is codified in non-cooperative game theory; the neoliberal citizen and consumer is the strategic rational actor. Rational choice justifies ends irrespective of means. Money becomes the medium of all value. Solidarity and good will are invalidated. Relationships are conducted on a quid pro quo basis. However, agents can freely opt out of this cynical race to the bottom by embracing a more expansive range of coherent action. (shrink)

Talk of ‘robustness’ remains vague, despite the fact that it is clearly an important parameter in evaluating models in general and game-theoretic results in particular. Here we want to make it a bit less vague by offering a graphic measure for a particular kind of robustness— ‘matrix robustness’— using a three dimensional display of the universe of 2 x 2 game theory. In a display of this form, familiar games such as the Prisoner’s Dilemma, Stag Hunt, Chicken and Deadlock appear (...) as volumes, making comparison easy regarding the extent of different game-theoretic effects. We illustrate such a comparison in robustness between the triumph of Tit for Tat in a spatialized environment (Grim 1995, Grim, Mar, and St. Denis 1998) and a spatialized modeling of the Contact Hypothesis regarding prejudice reduction (Grim, et. al 2005a, 2005b). The geometrical representation of relative robustness also offers a possibility for links between geometrical theorems and results regarding robustness in game theory. (shrink)

A dialogue arguing that morality has an objective basis in the mathematical object describing the "tit for tat" game theory. To play the game, a contractual obligation is freely made to cooperate and to fairly distribute the gains. Failure to meet these obligations results in social punishment.

This example, like the others, demands further discussion. My conclusion must therefore remain modest: an agent-neutral theory of our moral competence is not biologically implausible. Agent-centered rules like tit-for-tat, prerogatives, special obligations, and duties not to harm others might be best regarded as belonging to the theory of moral performance rather than the theory of moral competence. For biologists who may think otherwise, the general argument of this essay is that any claims to the contrary must be based on more (...) empirically well-developed theories of our moral competence and moral performance.More adequate theories of both kinds are worth developing, even if by themselves they determine nothing about how we ought to live our lives. Biology may help us understand the broad taxonomical categories of moral performance. It may also explain why, at the deepest levels of our moral thinking, we so easily slide into agent-neutral ways of reasoning. But how we ought to live our lives is something that must be determined by social experiment and moral argumentation. Discoveries regarding the empirical nature of morality cannot be made independently of the actual workings of our moral competence, which is itself only one factor in broader social and psychological processes that are capable of leading human beings down any number of more or less morally laudable paths. For a similar conclusion, see John Collier and Michael Stingl, “Evolutionary Naturalism and the Objectivity of Morality,” Biology and Philosophy, 8 (1993), pp. 47~0. The current essay owes much to discussions with John Collier, as well as to comments from several anonymous referees. (shrink)

The implications of game theory models of the evolution of strategies of exchange are explored with respect to the evolution of moral dispositions. I argue that dispositions to practice tit for tat strategies could have evolved, but the moral behaviours to which they give rise do not fare well on criteria of morality. Inasmuch as the strategy implicit in the Golden Rule is unconditional, it could not have evolved in environments containing strategies that exploit it. However, dispositions to invoke conditional (...) principles such as those that prescribe that people cooperate with those they observe cooperating and shun those they observe behaving selfishly, could have been selected in some conditions and may have given rise to the evolution of indirect reciprocity. The key to the evolution of morality is discrimination in favour of cooperators and against cheaters and selfish individualists. The limitations of game theory in the explanation of human morality are acknowledged. (shrink)

In contrast to Axelrod’s advice “don’t be envious” it is argued that the emotion of envy may enhance cooperation. TIT FOR TAT does exhibit a certain degree of envy. But, it does so in inconsistent ways. Two variants of TIT FOR TAT are introduced and their strategic properties are analyzed. Both generate the very same actual play as TIT FOR TAT in a computer tournament without noise. However, if noise is introduced they display some greater degree of stability. This is (...) due to the fact that they form, in a prisoner’s dilemma supergame with suitable parameters, an equilibrium with themselves that is subgame perfect or (in case of the first strategy) close to subgame perfect. It is additionally argued that these strategies are exceptionally clear and comprehensible to others in that they conform to well known real live behavior patterns. (shrink)

Biologists rely extensively on the iterated Prisoner's Dilemma game to model reciprocal altruism. After examining the informal conditions necessary for reciprocal altruism, I argue that formal games besides the standard iterated Prisoner's Dilemma meet these conditions. One alternate representation, the modified Prisoner's Dilemma game, removes a standard but unnecessary condition; the other game is what I call a Cook's Dilemma. We should explore these new models of reciprocal altruism because they predict different stability characteristics for various strategies; for instance, I (...) show that strategies such as Tit-for-Tat have different stability dynamics in these alternate models. (shrink)