The most widely used reputation models assume uniform users’ preference structure. In this paper a new reputation management model is presented. It is focused on aggregation of community wide reputation in situation when agents do not share the same preference structure. The reputation is interpreted as vectors of attributes that represent several reputation evaluation criteria. Outcomes of the...

Reputation concerns may help to achieve efficiency in cases where imperfect information impedes it. In this paper I highlight the endogenous property of reputation and analyze how it undermines the effectiveness of reputation to achieve efficiency. More reputation implies the possibility of undertaking more activity. At the same time, more activity generates more signals under which reputation ...

Social commerce is a promising new paradigm of e-commerce. Given the open and dynamic nature of social media infrastructure, the governance structures of social commerce are usually realized through reputation mechanisms. However, the existing approaches to the prediction of trust in future interactions are based on personal observations and/or publicly shared information in social commerce app...

Reputation systems could help consumers avoid transaction risk by providing historical consumers’ feedback. But, traditional reputation systems are vulnerable to the rating manipulation. It will undermine the trustworthiness of the reputation systems and users’ satisfaction will be lost. To address the issue, this study uses the real-world rating data from two travel website: Tripadvisor.com an...

Gavagai used its commercially available system for the filtering and polarity tasks in the evaluation campaign for online reputation management systems at CLEF 2013. The system is built for large scale analysis of streaming text and as part of the services Gavagai provides, it measures the public attitude visavi targets of interest. This mechanism — with no adjustment for this specific task — w...

This paper introduces a set of principles for governing the design and operation of online reputation systems. We also introduce the design, architecture, and implementation of a flexible, general-purpose framework, called Pythia, for building reputation systems. We give a sample application of our framework to illustrate its use.

Reputation-management, as proposed for dynamic and open systems aims to provide mechanism for analysing the behaviour of agents, and to distribute this information so that the impact of the actions of those acting against the interests of a community can be limited. We study the assumptions that underpin this decisionmaking role for reputation-management and highlight its limitations with regar...

Reputation systems are a key technology for making users accountable for their behavior in online communities. A reputation system computes the reputation of a user based on the feedback provided by the community. If the user draws negative feedback, it loses good reputation and may eventually be excluded from the network. It has been observed that users in a reputation system often hesitate in...

This paper examines parental reputation formation in intra-familial interactions. In a repeated two-stage game, children decide whether to drop out of high school or daughters decide whether to have births as teens and parents then decide whether to provide support to their children beyond age 18. Drawing on Milgrom and Roberts (1982) and Kreps and Wilson (1982), we show that, under certain con...