Buying reputation on eBay: Do recent changes help?

Dini, Federico; Spagnolo, Giancarlo

doi:10.1504/ijeb.2009.029048

Cited by 48 publications

(20 citation statements)

References 18 publications

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“…Also, allowing job-seekers to delete reviews could incentivize them to manipulate their reputation and cast themselves in a potentially falsified positive light. Such feedback manipulation undermines the very goal of online reputation systems, that is to present a person's true background (Dini and Spagnolo, 2009). It would also censor past employers' opinions and their right to free speech online (Rosen, 2012).…”

Section: Online Reputation Systems and Market Transparencymentioning

confidence: 99%

Oblivion of online reputation: how time cues improve online recruitment

Novotny

Spiekermann

2017

IJEB

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In online crowdsourcing labour markets, employers decide which job-seekers to hire based on their reputation profiles. If reputation systems neglect the aspect of time when displaying reputation profiles, though, employers risk taking false decisions, deeming an obsolete reputation to be still relevant. As a consequence, job-seekers might be unwarrantedly deprived of getting hired for new jobs and can be harmed in their professional careers in the long-run. This paper argues that exposing employers to the temporal context of job-seekers' reputation leads to better hiring decisions. Visible temporal context in reputation systems helps employers to ignore a job-seeker's obsolete reputation. An experimental lab study with 335 students shows that current reputation systems fall short of making them aware of obsolete reputation. In contrast, graphical time cues improve the social efficiency of hiring decisions.Biographical notes: Alexander Novotny is an information privacy and security specialist. He works as an information security risk manager in the utilities industry. Moreover, he is a lecturer at the Institute for Management Information Systems at the Vienna University of Economics and Business. He has been teaching lectures on information privacy and security, ethical computing, and the foundations of information and communication technology. Alexander holds a Ph.D. in the economic and social sciences with a major in business information systems. His research interests focus on electronic privacy, information security and ethical computing. He served as a standardization expert for digital marketing and privacy at the Austrian Standards Institute.

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Section: Online Reputation Systems and Market Transparencymentioning

confidence: 99%

Oblivion of online reputation: how time cues improve online recruitment

Novotny

Spiekermann

2017

IJEB

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“…For example, the robustness of Google's PageRank algorithm has been analysed by Zhang et al (2004) [27] and by Clausen (2004) [2], and the robustness of eBay's Feedback Forum has been analysed by several authors, including Resnick et al (2006) [22] and Dini & Spagnolo (2009) [4].…”

Section: Threat Analysis and Proposed Solutionsmentioning

confidence: 99%

Robustness of Trust and Reputation Systems: Does It Matter?

Jøsang

2012

IFIP Advances in Information and Communication Technology

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Abstract. Trust and reputation systems provide a foundation for security, stability, and efficiency in the online environment because of their ability to stimulate quality and to sanction poor quality. Trust and reputation scores are assumed to represent and predict future quality and behaviour and thereby to provide valuable decision support for relying parties. This assumption depends on two factors, primarily that trust and reputation scores faithfully reflect past observed quality, and secondly that future quality will be truly similar to that represented by the scores. Unfortunately, poor robustness of trust and reputation systems often makes it relatively easy to manipulate these factors, so that the fundamental assumption behind trust and reputation systems becomes questionable. On this background we discuss to what degree robustness against strategic manipulation is important for the usefulness of trust and reputation systems in general.

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“…Reputation systems becomes a crucial component of e-commerce (Dini & Spagnolo, 2009;Jøsang, Ismail, & Boyd, 2007). According to previous studies, the reputation of sellers exerts a slightly positive effect on the selling price in online auctions (Bruce, Haruvy, & Rao, 2004;Dewan & Hsu, 2004;Houser & Wooders, 2006;Lee, Im, & Lee, 2006).…”

Section: Introductionmentioning

confidence: 98%

A fair reputation system for use in online auctions

Lin

et al. 2015

Journal of Business Research

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Buying reputation on eBay: Do recent changes help?

Cited by 48 publications

References 18 publications

Oblivion of online reputation: how time cues improve online recruitment

Oblivion of online reputation: how time cues improve online recruitment

Robustness of Trust and Reputation Systems: Does It Matter?

A fair reputation system for use in online auctions

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