Recommendation systems and convergence of online reviews: The type of product network matters!

Stöckli, David Robert; Khobzi, Hamid (2021). Recommendation systems and convergence of online reviews: The type of product network matters! Decision support systems, 142, p. 113475. Elsevier 10.1016/j.dss.2020.113475

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This paper examines the association between product networks generated by recommendation systems and the product ratings' convergence of products. It further investigates how different types of product networks are associated with a customers' perception of quality between product pairs in a product network. Additionally, this study examines whether the type of product networks are associated with the convergence of expressed sentiments for products in a product network differently. Data is collected from a major Swiss e-commerce platform and analyzed via various econometrics models. The results suggest that a network connection between two products via a “substitute” recommender system leads to a convergence of the two products' ratings. In contrast, a connection via a “complementary” recommender system leads to the product ratings' divergence. Additionally, consistent findings are shown to be present when examining the association between the network connection and product sentiment convergence. The findings contribute to WOM and recommendation systems literature and provide interesting implications of the practice.

Item Type:

Journal Article (Original Article)

Division/Institute:

03 Faculty of Business, Economics and Social Sciences > Department of Business Management > Institute of Information Systems
03 Faculty of Business, Economics and Social Sciences > Department of Business Management > Institute of Information Systems > Information Engineering

UniBE Contributor:

Khobzi, Hamid

Subjects:

000 Computer science, knowledge & systems
300 Social sciences, sociology & anthropology > 330 Economics
300 Social sciences, sociology & anthropology > 380 Commerce, communications & transportation
600 Technology > 650 Management & public relations

ISSN:

1873-5797

Publisher:

Elsevier

Language:

English

Submitter:

Hamid Khobzi

Date Deposited:

02 Feb 2021 12:12

Last Modified:

07 Feb 2021 03:02

Publisher DOI:

10.1016/j.dss.2020.113475

BORIS DOI:

10.48350/151623

URI:

https://boris.unibe.ch/id/eprint/151623

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