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1.
Four types of data are distinguished, based on individual (micro) vs aggregate (macro) level, and on cross-section vs time-series. Analytical properties of collectives may be formed through aggregation, while structural and integral properties of collectives have no individual-level counterpart.Aggregation is not simply a summation of individual properties. People take the behavior of others into account and adapt their own behavior.Time-series are different from cross-sections in many ways. While at the cross-sectional level buying intentions are predictive, attitudes are better predictors in time-series data.We come to the conclusion that time-series data are superior to cross-sectional data for estimating a regression coefficient, Cross-sectional data (Type 1) are largely confounded by individual differences, while time-series data (Type 4) provide a better estimate for the relevant effect. Individual panel data (Type 3) combine the good characteristics of Type 4 and Type 1 data, especially if treated in a tune-series fashion.  相似文献   

2.
This paper examines principal and agent networks. We focus on networks because business research has placed far greater emphasis on the agency problem at the individual level. Our interest is in exploring the agency relationship at the group or network level. There are many variables at the group or network level which are absent when analyzing agency relationships at the individual level. Traditional theories of finance and economics do not adequately address or explain a host of behaviors that are inherent in human interactions that constitute organizational life. We include a sociological or behavioral approach in understanding this complex relationship. Using cohesiveness and shared goals as antecedents, we develop a theoretical model that predicts a range of relationship outcomes between principals and agents, as well as their impact on organizational goals. We explain that a range of relationships – including conflict, domination, exploitation, collaboration, and cooperation – is possible when networks of principals and agents interact.We argue that the social context is a key determinant of the relationship between actors in a network, and it has an important role in impacting cohesiveness and goal mutuality. The degree of cohesiveness within and between networks, and the extent to which goals are shared or are in conflict are the principal predictor variables we examine. We posit that cohesiveness and shared goals are necessary and sufficient conditions for agency problems between networks to be alleviated. Both necessary and sufficient conditions need to be met in order to overcome the problems of agency. The relationships we examine through the model include cooperation, collaboration, domination, opportunism, exploitation, and conflict. We present a number of propositions that theorize on the nature of the agency relationship and their impact on organizational goals. Implications for research and practice are also discussed.  相似文献   

3.
We consider two-sided many-to-many matching markets in which each worker may work for multiple firms and each firm may hire multiple workers. We study individual and group manipulations in centralized markets that employ (pairwise) stable mechanisms and that require participants to submit rank order lists of agents on the other side of the market. We are interested in simple preference manipulations that have been reported and studied in empirical and theoretical work: truncation strategies, which are the lists obtained by removing a tail of least preferred partners from a preference list, and the more general dropping strategies, which are the lists obtained by only removing partners from a preference list (i.e., no reshuffling). We study when truncation/dropping strategies are exhaustive for a group of agents on the same side of the market, i.e., when each match resulting from preference manipulations can be replicated or improved upon by some truncation/dropping strategies. We prove that for each stable mechanism, dropping strategies are exhaustive for each group of agents on the same side of the market (Theorem 1), i.e., independently of the quotas. Then, we show that for each stable mechanism, truncation strategies are exhaustive for each agent with quota 1 (Theorem 2). Finally, we show that this result cannot be extended neither to individual manipulations when the agent’s quota is larger than 1 (even when all other agents’ quotas equal 1—Example 1), nor to group manipulations (even when all quotas equal 1—Example 2).  相似文献   

4.
The current study used social network analysis to investigate peer network and individual predictors of potentially offensive sexual behaviors among high school students. Ninth‐grade students (n = 308; 158 girls) completed surveys assessing their perpetration of potentially offensive sexual behaviors against their peers, as well as measures of their sexualized gender stereotypes and propensity to self‐monitor. Participants selected up to eight of their closest friends from a roster. Results revealed homophily of potentially offensive sexual behaviors, such that adolescents perpetrated similar amounts of physical/verbal, electronic, and homophobic behaviors as their friends. Characteristics of the peer network (e.g., mean network perpetration, centrality of individual, and gender composition) and the individual adolescent (e.g., gender, sexualized gender stereotypes, self‐monitoring) predicted adolescents’ own behavior.  相似文献   

5.
Although the contemporary landscape is filled with organizations promoting their identity to various audiences, we know very little about how a different set of collectives purposely conceal themselves (e.g., anonymous support groups, secret societies, covert military units, terrorist organizations). In this study, we qualitatively analyzed concealment strategies used by 12 hidden organizations as they attempt to hide themselves and their members to achieve various goals. We found both organizations and their members use a variety of communicative strategies to conceal themselves, which we label administrative, partial concealment, complete concealment, deception, moving target (organization only), and membership exit (individual member only). These findings have implications for hidden organizations and those who wish to reveal them; furthermore, they add to our understanding of the role of communication in concealing and revealing organizational identity.  相似文献   

6.
This study examined how ethnic identity relates to large-scale brain networks implicated in social interactions, social cognition, self-definition, and cognitive control. Group Iterative Multiple Model Estimation (GIMME) was used to create sparse, person-specific networks among the default mode and frontoparietal resting-state networks in a diverse sample of 104 youths aged 17–21. Links between neural density (i.e., number of connections within and between these networks) and ethnic identity exploration and resolution were evaluated in the full sample. Ethnic identity resolution was positively related to frontoparietal network density, suggesting that having clarity about one’s ethnic group membership is associated with brain network organization reflecting cognitive control. These findings help fill a critical knowledge gap about the neural underpinnings of ethnic identity.  相似文献   

7.
Cognitive distortions in heavy gambling   总被引:1,自引:0,他引:1  
A sample of 38 regular and heavy gamblers, recruited through advertisements and not seeking treatment, were asked to describe special strategies, techniques or rituals that they used to increase their chances of winning at gambling in an open-ended interview. The mean South Oaks Gambling Screen Score for the sample was 7.7 with 64% of the sample scoring higher than 4. Their responses reflected multiple means by which the individual believed they were able to control (i.e., active illusory control, passive illusory control), reframe (i.e., interpretive control), or predict (i.e., probability control, predictive control) gambling outcomes. A larger number of cognitive distortions was associated with playing games in which skill was potentially a component (e.g., cards, sports) than in non-skill games (e.g., lotteries) as well as a positive family history of gambling. There were no sex differences. Implications of these findings for the cognitive psychopathology of gambling are discussed.  相似文献   

8.
File-sharing collectives have significantly disrupted models of digital media distribution since their emergence and widespread popularization in the late 1990s. This study investigates how semi-anonymous and decentralized collectives construct their communities of practice. Conducting a case study of a private torrenting community, data were gathered via participant observation, interviews, and online postings (i.e., blogs and forums). Findings challenged dominant notions of opportunism, selfishness and task-oriented individualism advanced by Human–Computer Interaction scholars. Three key constructs were identified in private torrent community building: boundary construction, membership maintenance, and a sense of belonging and solidarity. Findings illustrate how a file-sharing community cultivates the formation of prosocial digital peers, fosters an affective approach to peer-to-peer collectives, and ultimately forges a downloading virtuoso community. This sisyphean, goal-oriented community seeks to create a comprehensive archive of media artifacts independent of and in opposition to dominant corporate platforms. The community demonstrates a downloading culture inspired by technological design, yet driven by trust and solidarity.  相似文献   

9.
Due to recent strategic network building among health care partners a more differentiated discussion about the crucial structural and the personal success factors for network building and cooperation is needed. On that note, research has repeatedly emphasized the importance of the network agents’ individual soft skills. At the same time the empirical insights into this research topic are still scarce and the assumed interrelation between an agent’s individual repertoire of skills and his influence on the collaboration remain hypothetical so far. In the present paper we use the construct of so-called “political skills” to empirically test the impact of these skills on how they will contribute to the network members’ success within the cooperation. Using social network analysis the interaction structures between members in a doctors’ network (N = 37) are mapped and related to the individual level of political skills. It can be shown that primarily the dimension “networking ability” contributes to a beneficial role within the cooperation in terms of high prestige and high engagement as perceived by the other network members. In addition, members who scored high on that dimension are more likely to obtain benefits on an individual level (gaining new patients) as well as on a group level (identification with the network). One core implication that derives from the study’s results is the necessity to focus not only on strategic aspects with regard to building and designing health care networks, but also to develop and to foster personal soft-skills.  相似文献   

10.
There is limited research on adolescent–grandparent relationships, especially from the adolescent perspective and on large-scale samples. The study examined the associations between the adolescent–grandparent relationship (i.e., importance of, emotional closeness to, and respect for grandparents' views) and the characteristics of the adolescent, grandparent, and parent–grandparent relationship, as well as the interactions between several of these factors. It was based on a representative sample of 1478 students aged 11–16 from England and Wales who completed a structured questionnaire. Results supported the position that grandparents are a significant factor in the lives of adolescents. Findings of hierarchical regression analyses showed that more frequent contact, greater grandparent involvement, and better parent–grandparent relationships predicted adolescents' reports on higher levels of emotional closeness to, importance of, and respect for their closest grandparent's views. The interactions consistently emphasized the role of parents as gatekeepers of intergenerational exchange.  相似文献   

11.
Human–human communication studies have suggested that within communicative interactions, individuals acknowledge each other as intentional agents and adjust their emotion nonverbal behavior according to the other. This process has been defined as emotional attunement. In this study, we examine the emotional attunement process in the context of affective human–computer interactions. To this purpose, participants were exposed to one of two conditions. In one case, they played with a computer that simulated understanding of their emotional reactions while guiding them across four different game-like activities; in the other, the computer guided participants across the activities without mentioning any ability to understand emotional responses. Face movements, gaze direction, posture, vocal behavior, electrocardiogram and electrodermal activity were simultaneously recorded during the experimental sessions. Results showed that if participants were aware of interacting with an agent able to recognize their emotions, they reported that the computer was able to “understand” them and showed a higher number of nonverbal behaviors during the most interactive activity. The implications are discussed.  相似文献   

12.
We introduce a model of (wireless communication) networks: a group of agents want to communicate with each other; an agent has his own position, chooses his costly communication range, and benefits from direct and indirect communications with other agents; any two agents can directly communicate if each agent is located within another agent’s communication range; they can indirectly communicate if each agent is connected to another agent through a sequence of direct communications. Although efficiency and stability are not compatible in a general context, we identify interesting subclasses of problems where an efficient and stable network exists: the uniform interval model, the uniform circle model, and the communication favorable domain. We also investigate the consequence of allowing agents to relocate their positions. For certain networks, relocation-proofness is equivalent to stability.  相似文献   

13.
The co-authorship among members of a research group commonly can be represented by a (co-authorship) graph in which nodes represent the researchers that make up of this group and edges represent the connections between two agents (i.e., the co-authorship between these agents). Current study measures the reliability of networks by taking into consideration unreliable nodes (researchers) and perfectly reliable edges (co-authorship between two researchers). A Bayesian approach for the reliability of a network represented by the co-authorship among members of a real research group is proposed, obtaining Bayesian estimates and credibility intervals for the individual components (nodes or researchers) and the network. Weakly informative and non-informative prior distributions are assumed for those components and the posterior summaries are obtained by Monte Carlo-Markov Chain methods. The results show the relevance of an inferential approach for the reliability of scientific co-authorship network. The results also demonstrate that the contribution of each researcher is highly relevant for the maintenance of a research group. In addition, the Bayesian methodology was a feasible and easy computational implementation.  相似文献   

14.
This paper presents a conceptualization of group problem solving based on Heider's balance theory [Cartwright, D., Harary, F., 1956. Structural balance: a generalization of Heider's theory. Psychological Review 63, 277–292; Heider, F., 1946. Attitudes and cognitive organization. Journal of Psychology 21, 107–112; Heider, F., 1958. The Psychology of Interpersonal Relations. Wiley, New York], in which the problem solving process is viewed as a struggle toward increasing structural balance. Balance theory provides a means of representing problems that captures both gestalt restructuring and incremental search aspects of the problem solving process. An experimental method based on a flexible card categorization task operationalizes this conceptual view in a group problem solving situation. Results of an experiment investigating the effects of certain properties of problem structure on group problem solving behavior and performance are reported.  相似文献   

15.
This study explored whether infants understand information transmission in a third‐party communication context involving multiple agents. Infants aged 12 and 15 months were habituated to two agents pursuing two different objects and then tested with one agent (the communicator) interacting with a new agent (the recipient), whereas the other agent (the noncommunicator) did not interact with anyone. Results showed that 15‐month‐olds looked for longer when the recipient reached toward the preferred object of the noncommunicator in contrast to that of the communicator, suggesting that they recognized information transmitted from the communicator (versus the noncommunicator) to the recipient. Furthermore, the information was perceived as being specifically transmitted between agents, and this inference was not driven by the low‐level perceptual factors of the communicator or the communication itself. However, 12‐month‐old infants did not show an understanding of transmission between the agents. The selective understanding of information transmitted among multiple agents, and the critical role of agency in such understanding are discussed.  相似文献   

16.
Multifunctionality serves as an analytical framework to recognize many services that farms provide to their surrounding communities and society. This study explores an often overlooked dimension of multifunctionality by examining different recreational services provided by landowners in Missouri and analyzing the relationship between recreational multifunctionality and the practice of agroforestry. The latter provides multiple economic, environmental and beautification benefits that involve trees in the landscape. Results show that family farms provide several recreational services for their household members and others, and the existence of synergies between the recreational function of the farmland and agroforestry practices, consistent with the transition to strong multifunctionality. The recreational use of the land is positively associated to the cognitive (i.e., perceived knowledge) and affective (i.e., willingness to adopt) attitudes towards agroforestry. Results also show that the higher the perception of intrinsic (i.e., planting trees for wind protection and carbon sequestration) and economic (i.e., perceived economic benefits and flood protection) values of agroforestry, the more recreational use of the land. This study exemplifies the interactions between two little examined farmland functions providing insights for a comprehensive value assessment of family farms. Other academic and practical implications of the study are also detailed.  相似文献   

17.
Although research has explored social factors influencing memory performance during adolescence, the impact of adolescent social network positions remains largely unknown. This study examines whether adolescent network position is associated with memory performance in adulthood, while also considering potential gender differences. The study used a sibling sample from the National Longitudinal Study of Adolescent to Adult Health (N = 2462) and employed sibling fixed effects models to account for unobserved family background factors, such as genetics, parental characteristics, family environment, and childhood neighborhood. Four dimensions of adolescent network position—i.e., popularity, sociality, degree centrality, and closeness centrality—were sociometrically assessed in schools. Memory performance in adulthood was measured using the Rey Auditory Verbal Learning Test. The sibling fixed effects estimates indicate that sociality, degree centrality, and closeness centrality are significantly associated with increased memory performance in adulthood, even after controlling for unobserved family heterogeneity as well as a set of individual-level covariates. In contrast, controlling for unobserved family heterogeneity attenuated the association for popularity, making it statistically insignificant. This study also provides evidence of gender differences in the association between social network position and memory performance. The associations for popularity, sociality, and degree centrality are more pronounced among men than women. This study’s findings highlight the importance of adolescent network positions as social determinants in shaping cognitive outcomes over the life course. Interventions that encourage positive peer interactions and reduce social isolation during adolescence may help improve cognitive health in the population.  相似文献   

18.
Currently in clinical trials, microbicides have historically been promoted as a woman-controlled (although more recently woman initiated) method of sexually transmitted infection (STI) prevention. The contradicition that exists in this rationale is that women's bodies, specifically the genitals, have been constructed as a negotiated space within sexual interactions. This study qualitatively explored the factors influencing 40 young women's use of a vaginal moisturizer (VM), utilized as a microbicide surrogate. The results indicated that use of the VM was dependent upon product characteristics (i.e., the lubricating qualities affect on sexual pleasure, timing of insertion), individual factors (i.e., reproductive health goals, experiences with side effects of existing contraceptive methods), and contextual factors (i.e., social norms). An understanding of these bodily and social issues may be beneficial in designing targeted educational campaigns and effective instructional materials as well as in facilitating positive dialogue around women's bodies and their sexuality.  相似文献   

19.
This article draws upon research with men and women workers in ‘flat’ organizations, namely mixed-sex and all-women's worker co-operatives and collectives in the voluntary sector. It argues that the denial of sales, contracts and grants to women's co-operatives and collectives in particular, can be connected to discourses of sexuality generally and to the assumptions surrounding lesbianism and separatism in particular. Such discourses are often used to marginalize women workers and their co-operatives and collectives, irrespective of whether the women in such organizations are lesbians or not. It is argued that when women workers organize in ways which challenge male-dominated hierarchy, their marginalization necessarily takes a sexualized form because organizations, whether hierarchical or less/non-hierarchical, are not only gendered but are also sexualized. This analysis thus offers an important additional dimension to the view that the marginalization of co-operatives and collectives is due to their small size, lack of capital, location in certain sectors of the economy, or assumptions concerning the ‘alternative’ or ‘fringe’ nature of employment in such settings. This article also argues that sexuality can attach at the level of the organization, and not simply at the level of individual bodies or life-styles, an argument often unacknowledged both in the literature on lesbians in the workplace, and in the literature on co-operative businesses and less or non-hierarchical voluntary sector organizations generally.  相似文献   

20.
Individuals differ in how accurately they perceive their social environment, but research and theory provide conflicting predictions on whether powerful people are more or less accurate than others. Drawing on social network theory and the situated cognition theory of power, we examine the relationship between individuals’ formal and informal power and their perceptual accuracy of social network relationships. We propose that individuals’ perceptual accuracy is related to: 1) their formal and informal power in the organization; 2) the type of relationship being perceived (positive/negative valence) and its relevance to task and goal completion; and 3) the dependence relationship with the target of perception (i.e., whether the perceiver is dependent on the perceived to get their work done). Predictions were tested using cognitive social structure data collected from a technical call center. Results showed that power was generally linked to increased perceptual accuracy, particularly for the types of relationships most relevant for task and goal completion. We further demonstrated that social network accuracy was related to employees’ outcomes, including subsequent transfer, promotion, and exit from the organization.  相似文献   

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