The Relationship Between Disclosing Purchase Information and Reputation Systems in Electronic Markets
نویسندگان
چکیده
In this work we investigate how the introduction of the Verified Purchase (VP) badge on Amazon.com affected both the review helpfulness and the product ratings. We first conduct a propensity score matching study and find that all else equal, camera reviews are on average ranked 7 positions higher than non-VP reviews, while book VP reviews are on average ranked 11 positions higher than non-VP reviews. Next, we use a natural experiment setting to identify whether the entry of the VP feature had an effect on the (1) overall review helpfulness (both VP and non-VP reviews), and (2) average product rating. Our results show that the introduction of VP caused an increase in review helpfulness of 7.7% for books, and 1.7% for electronics. Furthermore, it caused on average an increase of 20 and 18 positions in the ranks on book and electronic products respectively.
منابع مشابه
Examining the Relationship Between Reviews and Sales: The Role of Reviewer Identity Disclosure in Electronic Markets
C product reviews have proliferated online, driven by the notion that consumers’ decision to purchase or not purchase a product is based on the positive or negative information about that product they obtain from fellow consumers. Using research on information processing as a foundation, we suggest that in the context of an online community, reviewer disclosure of identity-descriptive informati...
متن کاملThe Advisor-POMDP: A Principled Approach to Trust through Reputation in Electronic Markets
This paper examines approaches to representing uncertainty in reputation systems for electronic markets with the aim of constructing a decision theoretic framework for collecting information about selling agents and making purchase decisions in the context of a social reputation system. A selection of approaches to representing reputation using Dempster-Shafter Theory and Bayesian probability a...
متن کاملReasoning under Uncertainty in Social Reputation Systems: The Advisor-POMDP
This paper examines approaches to representing uncertainty in reputation systems for electronic markets with the aim of constructing a decision theoretic framework for collecting information about selling agents and making purchase decisions in the context of a social reputation system. A selection of approaches to representing reputation using Dempster-Shafter Theory and Bayesian probability a...
متن کاملThe Effect of Electronic Word of Mouth (e-WOM) Advertising on the Sports Customers' Purchase Intention with Emphasis on the Mediator Role of Consumer’s Involvement
The present study aimed to investigate the effects of electronic word of mouth (e-WOM) advertising on the sports customers' purchase intention with emphasis on the mediator role of consumer’s involvement. 270 sport customers voluntarily filled out the Bambauer-Sachse and Mangold electronic word of mouth advertising (2011), McQuarrie's consumer involvement (1992) and the Diallo (2012) and Park e...
متن کاملEffects of Online Reputation Service in Electronic Markets: A Trust-Based Empirical Study
Web-mediated consumer-to-consumer auctions are often regarded as risky due to the opportunistic behaviors in transaction. Online virtual community using feedback-based reputation service is an emerging trust building technology to reduce risk in online auction market. The purpose of this paper is to study the effect of feedback profiles on buyer’s purchase behavior. Based on previous researches...
متن کامل