Kemal Kıvanç Aköz
Manipulation Through Biased Product Reviews*
Aköz, Kemal Kıvanç; Arbatli, Cemal Eren; Celik, Levent
Abstract
We study a signal-jamming model of product review manipulation in which rational consumers consult product reviews and price to better estimate a product's quality, and a firm, whose quality is either high or low, chooses its price and how much bias to insert into product reviews. We show that both firm types always exert positive effort to manipulate product reviews, and, depending on the equilibrium price level, one or both of them can increase its sales. When the high-type firm exerts more effort than the low-type, review manipulation benefits consumers by raising [lowering] their demand for the high-quality [low-quality] product.
Citation
Aköz, K. K., Arbatli, C. E., & Celik, L. (2020). Manipulation Through Biased Product Reviews*. The Journal of Industrial Economics, 68(4), 591-639. https://doi.org/10.1111/joie.12240
Journal Article Type | Article |
---|---|
Online Publication Date | Feb 10, 2021 |
Publication Date | 2020-12 |
Deposit Date | Nov 7, 2023 |
Journal | The Journal of Industrial Economics |
Print ISSN | 0022-1821 |
Electronic ISSN | 1467-6451 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 68 |
Issue | 4 |
Pages | 591-639 |
DOI | https://doi.org/10.1111/joie.12240 |
Public URL | https://durham-repository.worktribe.com/output/1899854 |
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