Hasil untuk "Cooperation. Cooperative societies"

M. Nowak, K. Sigmund

Nico Mutzner, Taha Yasseri, Heiko Rauhut

The introduction of artificial intelligence (AI) agents into human group settings raises essential questions about how these novel participants influence cooperative social norms. While previous studies on human-AI cooperation have primarily focused on dyadic interactions, little is known about how integrating AI agents affects the emergence and maintenance of cooperative norms in small groups. This study addresses this gap through an online experiment using a repeated four-player Public Goods Game (PGG). Each group consisted of three human participants and one bot, which was framed either as human or AI and followed one of three predefined decision strategies: unconditional cooperation, conditional cooperation, or free-riding. In our sample of 236 participants, we found that reciprocal group dynamics and behavioural inertia primarily drove cooperation. These normative mechanisms operated identically across conditions, resulting in cooperation levels that did not differ significantly between human and AI labels. Furthermore, we found no evidence of differences in norm persistence in a follow-up Prisoner's Dilemma, or in participants' normative perceptions. Participants' behaviour followed the same normative logic across human and AI conditions, indicating that cooperation depended on group behaviour rather than partner identity. This supports a pattern of normative equivalence, in which the mechanisms that sustain cooperation function similarly in mixed human-AI and all human groups. These findings suggest that cooperative norms are flexible enough to extend to artificial agents, blurring the boundary between humans and AI in collective decision-making.

George Dewey, Hiroyasu Ando, Ryo Ikesu et al.

Abstract Punishment serves as a balancing force that dissuades people from acting selfishly, which complements cooperation as an essential characteristic for the prosperity of human societies. Past studies using economic games with two options (cooperation and defection) reported that cooperation decisions are generally faster than defection decisions and that time pressure possibly induces human players to be more intuitive and thus cooperative. However, it is unclear where punishment decisions sit on this time spectrum. Therefore, we recruited human players and implemented two series of online network games with cooperation, defection, and punishment options. First, we find that punishment decisions are slower than cooperation or defection decisions across both game series. Second, we find that imposing experimental time pressure on in-game decisions neither reduces nor increases the frequency of punishment decisions, suggesting that time pressure may not directly interact with the mechanisms that drive players to choose to punish.

Naser Seifollahi, Mohammadreza Keshavarz

Context and purpose: Agricultural cooperatives are an important tool for promoting agricultural modernization, which plays an important role in organizing the production of agricultural products. Therefore, there is a need to investigate effective ways to improve the quality of cooperative management for agricultural managers. The purpose of this research is to provide a model for improving the performance and competencies of agricultural cooperative managers with the theory approach.Methodology/approach: This research is a descriptive study in terms of purpose, application, and in terms of data collection. The statistical population of the research were experts and managers of agricultural cooperatives. The data collection tool was a semi-structured interview. To investigate the validity of the qualitative part, the content validity and intra-coder and inter-coder reliability models were used. The method of data analysis was the grounded theoretical approach, which was compiled with MAXQDA software and used the coding method.Findings and conclusions: The research results showed that the competence model of agricultural cooperative managers consists of seven dimensions abilities, which include: entrepreneurship, awareness, thinking, career orientation, personality traits, knowledge and technology, and personal abilities.Originality: Based on the perspective of competence, the results of this research enrich the management occupational competence by analyzing the combined effect of different competences of agricultural managers on the performance of cooperatives and provide ideas for building general industry competence models. The results of this study help to improve the performance and competencies of managers of agricultural cooperatives as an important influencing factor in cooperative performance.

Bailey R. House, J. Silk, J. Henrich et al.

Concepción Domínguez, Ricardo Gázquez, Juan Miguel Morales et al.

The Maximal Covering Location Problem (MCLP) is a classical location problem where a company maximizes the demand covered by placing a given number of facilities, and each demand node is covered if the closest facility is within a predetermined radius. In the cooperative version of the problem (CMCLP), it is assumed that the facilities of the decision maker act cooperatively to increase the customersz' attraction towards the company. In this sense, a demand node is covered if the aggregated partial attractions (or partial coverings) of open facilities exceed a threshold. In this work, we generalize the CMCLP introducing an Ordered Median function (OMf), a function that assigns importance weights to the sorted partial attractions of each customer and then aggregates the weighted attractions to provide the total level of attraction. We name this problem the Ordered Cooperative Maximum Covering Location Problem (OCMCLP). The OMf serves as a means to compute the total attraction of each customer to the company as an aggregation of ordered partial attractions and constitutes a unifying framework for CMCLP models. We introduce a multiperiod stochastic non-linear formulation for the CMCLP with an embedded assignment problem characterizing the ordered cooperative covering. For this model, two exact solution approaches are presented: a MILP reformulation with valid inequalities and an effective approach based on Generalized Benders' cuts. Extensive computational experiments are provided to test our results with randomly generated data and the problem is illustrated with a case study of locating charging stations for electric vehicles in the city of Trois-Rivières, Québec (Canada).

Petter Holme

This is a comment on a recent review article about reputation and reciprocity as mechanisms promoting cooperation. I also discuss the necessary changes for the currently game-theory-based cooperation studies to become a complete theory of cooperation in our contemporary society.

shahram mohammadzadeh, Jabbar Talebi

Context and purpose. One of the important issues in the agricultural production cooperatives sustainability is its role in creating and strengthening social capital. The pourpose was to measure and compare social capital between members and non-members farmers of production cooperatives.Methodology/approach. The research was applied and quasi-experimental. The statistical population consisted of 460 farmers of Araz 1 and 2 production cooperatives (as experimental group) and Qiqaj Plain (as control group) in the the margin of Aras River in Poldasht Township. According to Krejcie and Morgan table and using proportional stratified random sampling, 142 and 68 people from the experimental group and control group were selected respectively. The research tool was a researcher-made questionnaire whose validity was confirmed by university faculty members and its reliability by Cronbach's alpha coefficient (0.73 to 85).Findings and conclusions. Overall, the extent of social capital was lower than average. According to Mann-Whitney test, the rank average of social capital and components of social trust, trust in government institutions, participation and relationships network were significantly lower among production cooperative members than non-members. However, no significant difference was observed between the components of social cohesion and trust in civic institutions between these two groups. Therefore, these production cooperatives have been established by the government in a top-down manner, which has caused the destruction of rural subculture and reduce social trust.Originality. Previous studies have investigated social capital only form members viewpoint. Therefore, the use of experimental research method provides useful results for establishing and management of cooperatives.

Noelia Morales Romo, Beatriz Morales Romo

This study presents the results of an analysis of teaching practices within the Master’s Programme in Teacher Training and Development, a collaborative Master’s coordinated by the University of Salamanca (Spain) for the Ecuadorian Teacher’s professional development. The objective is to reflect upon and analyse the Practicum processes from the multicultural model based on cultural pluralism complemented with a socio-critical approach, paying special attention to the dimensions of cultural and educational diversity framed in cooperative processes. In addition to documentary analysis, two Delphi studies were conducted, one involving administrators of educational centres hosting student teachers, and the other involving personnel responsible for Practicum management. The findings emphasise the importance of cooperative and collaborative processes involving all professionals from both countries, for binational teaching practices to respond constructively to the educational challenges of cultural diversity arising from globalization. The evidence of the elements from the cultural pluralism model provides an excellent reference point for this. The educational challenges of diverse and multicultural societies require responses from a socio-critical approach that analyses reality from broad perspectives such as cultural pluralism that permeates educational interventions, including teaching practices. This is a multidimensional process that requires continuous communication and cooperation processes.

Alexandre Champagne-Ruel, Paul Charbonneau

One of the leading theories for the origin of life includes the hypothesis according to which life would have evolved as cooperative networks of molecules. Explaining cooperation$-$and particularly, its emergence in favoring the evolution of life-bearing molecules$-$is thus a key element in describing the transition from nonlife to life. Using agent-based modeling of the iterated prisoner's dilemma, we investigate the emergence of cooperative behavior in a stochastic and spatially extended setting and characterize the effects of inheritance and variability. We demonstrate that there is a mutation threshold above which cooperation is$-$counterintuitively$-$selected, which drives a dramatic and robust cooperative takeover of the whole system sustained consistently up to the error catastrophe, in a manner reminiscent of typical phase transition phenomena in statistical physics. Moreover, our results also imply that one of the simplest conditional cooperative strategies, "Tit-for-Tat", plays a key role in the emergence of cooperative behavior required for the origin of life.

taimor naseri, Mohammad Bagher Arayesh, marjan vahedi

Despite the rich literature on entrepreneurial marketing in various texts, the nature of research in the field of cooperative businesses with different cultural and economic burden has undergone major changes and the existing patterns and models of entrepreneurial marketing do not explain well the entrepreneurial marketing methods of these businesses. Therefore, the main purpose of this study is to identify the implementation model of strategic entrepreneurial marketing in production cooperatives. This study, in terms of purpose, is considered as an applied research and it is a qualitative research in terms of data collection method. To identify the pattern of strategic entrepreneurial marketing implementation in production cooperatives, 124 articles were reviewed, of which 26 articles were selected for the final analysis using the Critical Assessment Skills Program. In this study, first 298 indicators of strategic entrepreneurial marketing were identified and classified into 46 concepts and 12 categories. Shannon entropy method was used to determine the weight of the indices. On the basis of the research findings, the main dimensions of entrepreneurial marketing implementation include strategic marketing thinking, intra-organizational factors, strategic planning, target market selection, network of communication-organizational capabilities, entrepreneur-centered marketing strategies, strategic requirements, entrepreneurial requirements, Systematic support for cooperatives management, market entry methods, market research and consumer behavior analysis, and market control and evaluation. Finally, it can be concluded that managers of production cooperatives can use the results of this study to identify new customers and their diverse needs, increase market share and create a competitive advantage.

R. Suleiman, Yuval Samid

Experiments using the public goods game have repeatedly shown that in cooperative social environments, punishment makes cooperation flourish, and withholding punishment makes cooperation collapse. In less cooperative social environments, where antisocial punishment has been detected, punishment was detrimental to cooperation. The success of punishment in enhancing cooperation was explained as deterrence of free riders by cooperative strong reciprocators, who were willing to pay the cost of punishing them, whereas in environments in which punishment diminished cooperation, antisocial punishment was explained as revenge by low cooperators against high cooperators suspected of punishing them in previous rounds. The present paper reconsiders the generality of both explanations. Using data from a public goods experiment with punishment, conducted by the authors on Israeli subjects (Study 1), and from a study published in Science using sixteen participant pools from cities around the world (Study 2), we found that: 1. The effect of punishment on the emergence of cooperation was mainly due to contributors increasing their cooperation, rather than from free riders being deterred. 2. Participants adhered to different contribution and punishment strategies. Some cooperated and did not punish (‘cooperators’); others cooperated and punished free riders (‘strong reciprocators’); a third subgroup punished upward and downward relative to their own contribution (‘norm-keepers’); and a small sub-group punished only cooperators (‘antisocial punishers’). 3. Clear societal differences emerged in the mix of the four participant types, with high-contributing pools characterized by higher ratios of ‘strong reciprocators’, and ‘cooperators’, and low-contributing pools characterized by a higher ratio of ‘norm keepers’. 4. The fraction of ‘strong reciprocators’ out of the total punishers emerged as a strong predictor of the groups’ level of cooperation and success in providing the public goods.

Alessandra F. Lütz, Marco Antonio Amaral, Lucas Wardil

Cooperation is one of the foundations of human society. Many solutions to cooperation problems have been developed and culturally transmitted across generations. Because immigration can play a role in nourishing or disrupting cooperation in societies, we must understand how the newcomers' culture interacts with the hosting culture. Here, we investigate the effect of different acculturation settings on the evolution of cooperation in spatial public goods games with the immigration of defectors and efficient cooperators. Here, immigrants may be socially influenced, or not, by the native culture according to four acculturation settings: integration, where immigrants imitate both immigrants and natives; marginalization, where immigrants do not imitate either natives or other immigrants; assimilation, where immigrants only imitate natives; and separation, where immigrants only imitate other immigrants. We found that cooperation is greatly facilitated and reaches a peak for moderate values of the migration rate under any acculturation setting. Most interestingly, we found that the main acculturation factor driving the highest levels of cooperation is that immigrants do not avoid social influence from their fellow immigrants. We also show that integration may not promote the highest level of native cooperation if the benefit of cooperation is low.

Ted Fujimoto, Arthur Paul Pedersen

Single-agent reinforcement learning algorithms in a multi-agent environment are inadequate for fostering cooperation. If intelligent agents are to interact and work together to solve complex problems, methods that counter non-cooperative behavior are needed to facilitate the training of multiple agents. This is the goal of cooperative AI. Recent research in adversarial machine learning, however, shows that models (e.g., image classifiers) can be easily deceived into making inferior decisions. Meanwhile, an important line of research in cooperative AI has focused on introducing algorithmic improvements that accelerate learning of optimally cooperative behavior. We argue that prominent methods of cooperative AI are exposed to weaknesses analogous to those studied in prior machine learning research. More specifically, we show that three algorithms inspired by human-like social intelligence are, in principle, vulnerable to attacks that exploit weaknesses introduced by cooperative AI's algorithmic improvements and report experimental findings that illustrate how these vulnerabilities can be exploited in practice.

Camilo Garcia, Patricia M. Greenfield, Axel M. Navarro-Hernández et al.

Greenfield's theory of social change and human development is based on the distinction between Gemeinschaft (low-income agricultural communities with low levels of formal education and technology) and Gesellschaft (wealthier commerce-based societies with high levels of formal education and technology). Cooperation is more adaptive in a Gemeischaft environment; in contrast, competition is more adaptive in a Gesellschaft environment. As Mexican ecologies moved in the Gesellschaft direction over recent decades, children's cooperative behavior declined, as predicted by the theory. The current quasi-experiment extends this finding from a two-person game, the marble pull, to a new situation, Madsen's cooperation board, a game that requires cooperation among four children. Based on a sample of 57 groups of four children each tested in 2017 and 70 groups of four children each tested in 1967, the Wilcoxon Signed Ranks Test (p < 0.001) showed that the decline of cooperation and the rise of competition generalizes across middle-class urban, low-income urban, and rural children in Mexico and that it applies to male, female, and mixed groups. In conclusion, we provide continuing evidence that child behavior is responsive to ecological conditions and shifts over time in order to adapt to them. Given that cooperation is a fundamental human trait that binds social units together, our study also contributes to the conclusion that globalized social change in the Gesellschaft direction entails human loss as well as gain.

Rute Mendonça, Philippe Vullioud, N. Katlein et al.

Within cooperatively breeding societies, individuals adjust cooperative contributions to maximize indirect fitness and minimize direct fitness costs. Yet, little is known about the physiological costs of cooperation, which may be detrimental to direct fitness. Oxidative stress, the imbalance between reactive oxygen species (by-products of energy production) and antioxidant protection, may represent such a cost when cooperative behaviours are energetically demanding. Oxidative stress can lead to the accumulation of cellular damage, compromising survival and reproduction, thus mediating the trade-off between these competing life-history traits. Here, we experimentally increased energetically demanding cooperative contributions in captive Damaraland mole-rats (Fukomys damarensis). We quantified oxidative stress-related effects of increased cooperation on somatic and germline tissues, and the trade-off between them. Increased cooperative contributions induced oxidative stress in females and males, without increasing somatic damage. Males accumulated oxidative damage in their germline despite an increase in antioxidant defences. Finally, oxidative damage accumulation became biased towards the germline, while antioxidant protection remained biased towards the soma, suggesting that males favour the maintenance of somatic tissues (i.e. survival over reproduction). Our results show that heightened cooperative contributions can ultimately affect direct fitness through oxidative stress costs, which may represent a key selective pressure for the evolution of cooperation.

B. Battu, N. Srinivasan

Cooperation declines in repeated public good games because individuals behave as conditional cooperators. This is because individuals imitate the social behaviour of successful individuals when their payoff information is available. However, in human societies, individuals cooperate in many situations involving social dilemmas. We hypothesize that humans are sensitive to both success (payoffs) and how that success was obtained, by cheating (not socially sanctioned) or good behaviour (socially sanctioned and adds to prestige or reputation), when information is available about payoffs and prestige. We propose and model a repeated public good game with heterogeneous conditional cooperators where an agent's donation in a public goods game depends on comparing the number of donations in the population in the previous round and with the agent's arbitrary chosen conditional cooperative criterion. Such individuals imitate the social behaviour of role models based on their payoffs and prestige. The dependence is modelled by two population-level parameters: affinity towards payoff and affinity towards prestige. These affinities influence the degree to which agents value the payoff and prestige of role models. Agents update their conditional strategies by considering both parameters. The simulations in this study show that high levels of cooperation are established in a population consisting of heterogeneous conditional cooperators for a certain range of affinity parameters in repeated public good games. The results show that social value (prestige) is important in establishing cooperation.

Elisa Bertino, F. Doshi-Velez, M. Gini et al.

The rise of Artificial Intelligence (AI) will bring with it an ever-increasing willingness to cede decision-making to machines. But rather than just giving machines the power to make decisions that affect us, we need ways to work cooperatively with AI systems. There is a vital need for research in"AI and Cooperation"that seeks to understand the ways in which systems of AIs and systems of AIs with people can engender cooperative behavior. Trust in AI is also key: trust that is intrinsic and trust that can only be earned over time. Here we use the term"AI"in its broadest sense, as employed by the recent 20-Year Community Roadmap for AI Research (Gil and Selman, 2019), including but certainly not limited to, recent advances in deep learning. With success, cooperation between humans and AIs can build society just as human-human cooperation has. Whether coming from an intrinsic willingness to be helpful, or driven through self-interest, human societies have grown strong and the human species has found success through cooperation. We cooperate"in the small"-- as family units, with neighbors, with co-workers, with strangers -- and"in the large"as a global community that seeks cooperative outcomes around questions of commerce, climate change, and disarmament. Cooperation has evolved in nature also, in cells and among animals. While many cases involving cooperation between humans and AIs will be asymmetric, with the human ultimately in control, AI systems are growing so complex that, even today, it is impossible for the human to fully comprehend their reasoning, recommendations, and actions when functioning simply as passive observers.

Felipe Maciel Cardoso, Carlos Gracia-Lazaro, Yamir Moreno

Situations involving cooperative behaviour are widespread among animals and humans alike. Game theory and evolutionary dynamics have provided the theoretical and computational grounds to understand what are the mechanisms that allow for such cooperation. Studies in this area usually take into consideration different behavioural strategies and investigate how they can be fixed in the population under evolving rules. However, how those strategies emerged from basic evolutionary mechanisms continues to be not fully understood. To address this issue, here we study the emergence of cooperative strategies through a model of heuristics selection based on evolutionary algorithms. In the proposed model, agents interact with other players according to a heuristic specified by their genetic code and reproduce -- at a longer time scale -- proportionally to their fitness. We show that the system can evolve to cooperative regimes for low mutation rates through heuristics selection while increasing the mutation decreases the level of cooperation. Our analysis of possible strategies shows that reciprocity and punishment are the main ingredients for cooperation to emerge, being conditional cooperation the more frequent strategy. Additionally, we show that if in addition to behavioural rules, genetic relatedness is included, then kinship plays a relevant role. Our results illustrate that our evolutionary heuristics model is a generic and powerful tool to study the evolution of cooperative behaviour.

morteza feizollahzadeh, shahram mohammadzadeh, Samad Karrari

Although the export of agricultural products in Iran has an important role in the national economy, but agricultural production cooperatives have failed in marketing and exporting products. The aim of this study was to determine the appropriative strategies for marketing and exporting of agricultural products in agricultural production cooperatives of Maku Industrial and Trade Free Zone. An applied research was conducted by using a survey method and a questionnaire. The statistical population included directors and members of the board of directors of the two production cooperatives and experts who were 40 people in overall that were studied by the census method. Using internal and external matrices and SWOT analytical matrix, strengths, weaknesses, opportunities and threats facing cooperatives were prioritized and then appropriate strategies were identified. Based on the results, a total of 12 strength versus 20 weaknesses and 13 opportunities against 13 threats were identified. Based on the results, a conservative- revision strategy was identified to use opportunities and eliminate weaknesses. The proposed strategies were: using investors to create processing and complementary industries; Utilization of new production technologies; Employing specialized staff and managers in production cooperatives; Granting banking facilities with special conditions to exporters of agricultural products; Conduct marketing research; Quantitative and qualitative improvement of agricultural products; And timely provision of production inputs.