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The Influence of Follower Behaviour on Leaders' Trust in FollowersBremner, Nicholas 26 August 2011 (has links)
This study reviews the burgeoning literature on followership and tests propositions from a recently developed theoretical framework to explore the relationship between follower behaviours, leaders’ perceptions of follower trustworthiness (trusting beliefs), and leaders’ subsequent willingness to be vulnerable to the actions of their followers (trusting intentions). Leaders’ implicit followership theories (IFTs) were examined as a potential moderator of both relationships. Results revealed that passive followership influenced leaders’ trusting beliefs negatively, whereas collaborative followership had a positive influence on leaders’ trusting beliefs as well as leaders’ trusting intentions. The most extreme form of proactive followership, challenging followership, had nonsignificant relationships with leaders’ trusting beliefs and intentions. In addition, leaders’ IFTs did not interact with followership behaviour to produce any change in leaders’ trusting beliefs. However, IFTs were found to moderate the relationship between leaders’ trusting beliefs and trusting intentions. Implications for research and practice are discussed in light of the results.
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Autoregression Models for Trust Management in Wireless Ad Hoc NetworksLi, Zhi 05 October 2011 (has links)
In this thesis, we propose a novel trust management scheme for improving routing reliability in wireless ad hoc networks. It is grounded on two classic autoregression models, namely Autoregressive (AR) model and Autoregressive with exogenous inputs (ARX) model. According to this scheme, a node periodically measures the packet forwarding ratio of its every neighbor as the trust observation about that neighbor.
These measurements constitute a time series of data. The node has such a time series for each neighbor. By applying an autoregression model to these time series, it predicts the neighbors future packet forwarding ratios as their trust estimates, which in turn facilitate it to make intelligent routing decisions. With an AR model being applied, the
node only uses its own observations for prediction; with an ARX model, it will also take into account recommendations from other neighbors. We evaluate the performance of
the scheme when an AR, ARX or Bayesian model is used. Simulation results indicate that the ARX model is the best choice in terms of accuracy.
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Towards Secure and Trustworthy Wireless Ad hoc NetworksRen, Yonglin 19 June 2012 (has links)
Due to the attractive advantages of wireless communication technologies, wireless networking and mobile computing has developed expeditiously and gained ample prevalence. Thereby, many practical applications are being designed for the use of wireless ad hoc networks in both military and civilian scenarios. However, some security concerns have arisen from such networks, especially in that misbehaving nodes pose a major threat during the construction of a trusted network. Therefore, security is one of the key challenges in wireless ad hoc networks, requiring significant attention due to their own features and concerns. This thesis presents several computational models and security strategies for the design of secure, trustworthy networks, which are able to make rational decisions when encountering potential threats. In this thesis, we first propose a distributed network management model for secure group communication. Our approach simplifies the complexity of traditional group management and supports the inclusion of other security mechanisms for the purpose of secure communications. As a decentralized management method, trust can perform well in a dynamic and agile environment. Our proposed trust system defines the concept of trust, establishes the trust relationship between distributed nodes, involves the novel and effective computational model, and specifies a set of trust-based rules in this system for wireless nodes. We also propose a hybrid cryptosystem through the application of both symmetric and asymmetric key algorithms to provide reliable and secure protection of data confidentiality. With the design of selective encryption, uncertainty is incorporated into data encryption and the overhead spent on the data protection is significantly reduced. Thus, the communicating parties not only obtain reliable security protection, but also improve the efficiency of data communication. Through security analysis and simulation experiments, we have shown how decentralized management is useful in wireless and ad hoc scenarios, how trust provides feasible solutions for misbehavior detection, and how our proposed strategies offer security properties.
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Can Leaders Influence a Learning Organization? An Exploratory Study of the Relationship Between Leadership, Organizational Learning Capability and the Mediating Role of TrustGrover, Ira Ann 13 September 2012 (has links)
The purpose of this research is to study how organizations maintain their competitive advantage in today’s turbulent and highly competitive business environment, by striving to become a learning organization. The impact of factors such as leadership (both transformational and transactional leadership) and trust on an organization’s learning capability is empirically examined. This research adds to the existing body of literature in two ways. First, it argues that a transactional leadership style can influence learning, despite research spanning the last decade that has focused on transformational leadership theory as the dominant model of effective leadership. Therefore, the importance of both leadership styles, each having valuable differential effects is emphasized in this study. Second, the previously untested role of trust as mediating the relationship between leadership and organizational learning capability is examined. It is argued that without supervisor trust, the opportunities for a learning organization to reach its full potential and to subsequently develop learning capabilities is reduced. Findings from this study support the influence of both leadership styles on learning. Trust in one’s supervisor was also found to fully mediate the relationship between leadership and learning.
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Perspectives of Mining and Communication : Identifying constructivity and destructivity of conflicts in the Akyem and Wassa areas in GhanaGyapong, Ludrick Kwadwo January 2013 (has links)
Over several centuries, mining activities have resulted in the creation of varied environmental complications. Most mining activities are carried out in locations with proximity to human settlements. The interplay of mining activity and society has created several mining-related conflicts throughout the world, and in developing countries especially, these conflicts are much prevalent. These conflicts could be analysed in a variety of ways: analyzing the conflicts based on goals, interests and value interference; or on the bases of issues related to interaction between two or more parties. This paper takes into consideration the two concepts of constructivity and destructivity of conflicts as they relate to natural resource management and indicate that it is possible for a country or society like Ghana to discover constructive potential in a phenomenon that is mostly deemed destructive. The conflict situations in two mining communities (Akyem and Wassa) are taken into consideration for this paper. This does not deal with issues of conflict management, rather, it takes a look into the interaction between these communities and the associated mining company to determine whether the relationship between them possess constructive or destructive potentials. Based on interviews and information available on the internet, this paper determines that there exist elements of constructivity and destructivity in both areas. In the Akyem area, the destructive aspects reside in the relationship between Newmont and the Wassa Association of Communities Affected by Mining (WACAM). The relationship between Newmont and the local representatives take on a constructive aspect. Even though there is some sort of tension between the local people and Newmont, the situation can still be considered as constructive because they are still able to engage in dialogue in an attempt to coexist. In the Wassa area on the other hand, the story is different thus taken a destructive nature between Golden Star Resources and the communities. The involvement of the government however presents an opportunity for constructivity in the situation.
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Canadian consumer valuation of farm animal welfare and quality verification the case of porkUzea, Adrian Daniel 07 July 2009
There is increasing pressure from animal rights organizations (AROs) on restaurant chains, food retailers, and meat processors to implement more stringent farm animal welfare (FAW) requirements for their suppliers. In the United States, AROs have recently initiated successful ballots to phase out confinement practices in several states. In Canada AROs have been pressuring both public and private sector stakeholders to improve FAW. Are FAW issues, however, paramount in the minds of Canadian consumers? Is the demand for more stringent FAW protocols primarily determined by a subset of consumers with very strong preferences or does it signal a more fundamental underlying change in consumer and societal preferences? Given the credence nature of FAW, who do consumers trust (i.e., government vs. private industry vs. independent third parties) in the market place for the provision of FAW quality assurances? What are the determinants of trust in these organizations for providing accurate information about animal welfare?<p>
In order to answer these questions, a stated preference consumer survey encompassing FAW issues specific to the Canadian pork sector was tested on two samples of consumers in summer 2008, namely: a general population sample (GPS) across Canada and a sample of AROs members. Consumers participated in a purchase experiment where they had to chose between pork chops characterized by combinations of different levels of FAW attributes (i.e., housing system, gestation stalls, and use of antibiotics), quality verifying organization, and price. Multinomial Logit and Latent Class Logit Models were used to analyse the survey data.<p>
Surprisingly, outdoor system does not seem to resonate well with Canadians, as both the GPS and the members of the AROs discounted this attribute. As expected, the AROs members have much stronger preferences for the other FAW attributes than have consumers in the GPS. Nevertheless, significant heterogeneity exists within consumer preferences. Five classes of consumers were identified in the GPS with respect to their preferences for FAW. At one end of the spectrum are the FAW sensitive consumers (12.3%) that have higher willingness-to-pay (WTP) for FAW, while at the other end of the spectrum Price Conscious consumers (18.3%) do not exhibit any WTP for FAW. The other three classes (69.4%) comprise respondents with mixed perceptions regarding FAW. Government and Third Party verification of FAW quality assurances had the strongest influence on consumers preferences in both samples. As well, scientific experts in FAW along with the above two organizations are the most credible in providing information about the welfare of pigs. The extent to which these organizations are knowledgeable about the welfare of pigs is the most important factor enhancing consumers trust. Results from this study suggest that there are potential marketing opportunities for pork chops sourced from pigs raised on farms where sows are kept in groups, and where credible quality assurances can be established, that private industry could consider. As well, the results suggest that consumers would derive benefits from the government taking a more active role with respect to validating FAW quality assurances.
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Seniority as a Metric in Reputation Systems for E-CommerceCormier, Catherine 19 July 2011 (has links)
In order to succeed, it is imperative that all e-commerce systems include an effective and reliable trust and reputation modeling system. This is particularly true of decentralized e-commerce systems in which autonomous software engage in commercial transactions. Many researchers have sought to overcome the complexities of modeling a subjective, human concept like trust, resulting in several trust and reputation models.
While these models each present a unique offering and solution to the problem, several issues persist. Most of the models require direct experience in the e-commerce system in order to make effective trust decisions. This leaves new agents and agents who only casually use the e-commerce system vulnerable. Additionally, the reputation ratings of agents who are relatively new to the system are often indistinguishable from scores for poorly performing agents. Finally, more tactics to defend against agents who exploit the characteristics of the open, distributed system for their own malicious needs are required.
To address these issues, a new metric is devised and presented: seniority. Based on agent age and activity level within the e-commerce system, seniority provides a means of judging the credibility of other agents with little or no prior experience in the system. As the results of experimental analysis reveals, employing a reputation model that uses seniority provides considerable value to agents who are new agents, casual buyer agents and all other purchasing agents in the e-commerce system. This new metric therefore offers a significant contribution toward the development of enhanced and new trust and reputation models for deployment in real-world distributed e-commerce environments.
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The Influence of Follower Behaviour on Leaders' Trust in FollowersBremner, Nicholas 26 August 2011 (has links)
This study reviews the burgeoning literature on followership and tests propositions from a recently developed theoretical framework to explore the relationship between follower behaviours, leaders’ perceptions of follower trustworthiness (trusting beliefs), and leaders’ subsequent willingness to be vulnerable to the actions of their followers (trusting intentions). Leaders’ implicit followership theories (IFTs) were examined as a potential moderator of both relationships. Results revealed that passive followership influenced leaders’ trusting beliefs negatively, whereas collaborative followership had a positive influence on leaders’ trusting beliefs as well as leaders’ trusting intentions. The most extreme form of proactive followership, challenging followership, had nonsignificant relationships with leaders’ trusting beliefs and intentions. In addition, leaders’ IFTs did not interact with followership behaviour to produce any change in leaders’ trusting beliefs. However, IFTs were found to moderate the relationship between leaders’ trusting beliefs and trusting intentions. Implications for research and practice are discussed in light of the results.
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709 |
Autoregression Models for Trust Management in Wireless Ad Hoc NetworksLi, Zhi 05 October 2011 (has links)
In this thesis, we propose a novel trust management scheme for improving routing reliability in wireless ad hoc networks. It is grounded on two classic autoregression models, namely Autoregressive (AR) model and Autoregressive with exogenous inputs (ARX) model. According to this scheme, a node periodically measures the packet forwarding ratio of its every neighbor as the trust observation about that neighbor.
These measurements constitute a time series of data. The node has such a time series for each neighbor. By applying an autoregression model to these time series, it predicts the neighbors future packet forwarding ratios as their trust estimates, which in turn facilitate it to make intelligent routing decisions. With an AR model being applied, the
node only uses its own observations for prediction; with an ARX model, it will also take into account recommendations from other neighbors. We evaluate the performance of
the scheme when an AR, ARX or Bayesian model is used. Simulation results indicate that the ARX model is the best choice in terms of accuracy.
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710 |
Perceived intrusiveness and trust in relation to online advertising : A qualitative study amongst individuals of the Net GenerationBeauvillain, Antoine, Tiger, Oskar January 2013 (has links)
The purpose of this qualitative study is to advance an understanding of trust and perceived intrusiveness in online advertising. The theoretical framework in this thesis is based upon theories about trust and intrusiveness that derives from previous research. The theory of psychological reactance is a further constituent. These concepts and theories are defined and discussed. and possible models are introduced. Semi-structured interviews with eight individuals of the Net Generation have been conducted to gather empirical data. The recordings from these interviews have thereafter been transcribed. in order to analyse the collected data, we have adopted a thematic analysis consisting of six phases. We coded the data and created themes that were detected during the different phases. The empirical data has been gathered by conduction of eight semi-structured interviews with individuals of the Net Generation. These interview have thereafter been transcribed and its content coded as a first step of the analysis. Three global themes derived from the empirical data analysis; trust, intrusiveness and observed relations, and many basic themes defined and analysed and discussed. We conclude our study advancing our findings about an understanding of trust and perceived intrusiveness in online advertising, as well as some observed relations noticed during the analysis. We finish our thesis with some managerial implications about the importance for managers and advertisers to take into account trust and intrusiveness, as well as leads for further studies, including the testing of our developed research model through a quantitative strategy.
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