Fake Reviews in Online Platforms and the Effort to Fight Them

Q3 Economics, Econometrics and Finance

Studies in Microeconomics Pub Date : 2021-11-01 DOI:10.1177/23210222211051470

Juan Pedro Aznar-Alarcón, Oriol Anguera-Torrell

引用次数: 0

Abstract

This paper proposes a model in which oligopolistic firms selling through an online platform can invest in creating positive fake reviews to increase their reputation and negative ones to harm that of their competitors. Therefore, oligopolistic firms’ demand depends on the amount of positive and negative fake reviews. In this context, the online platform optimally chooses the effort to fight fake reviews and the fee it charges to online sellers for each transaction. The novelty of the model lies in incorporating the online platform’s role in fighting fake reviews and its interplay with sellers’ strategic behaviour. The model’s main result is that the platform’s effort has a positive impact not only on consumers’ surplus but also on the oligopolistic firms’ profitability. In its turn, the platform’s optimal effort depends on exogenous parameters, including the demand’s sensitivity to fake reviews. JEL Classifications: D21, D43, L13, L81

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网络平台上的虚假评论及其打击力度

本文提出了一个模型，在这个模型中，通过在线平台销售的寡头垄断企业可以投资创造积极的虚假评论来提高自己的声誉，而负面评论则会损害竞争对手的声誉。因此，寡头垄断企业的需求取决于正面和负面虚假评论的数量。在这种情况下，在线平台选择了打击虚假评论的最佳努力，并为每笔交易向在线卖家收取费用。这种模式的新颖之处在于，它结合了在线平台在打击虚假评论方面的作用，以及它与卖家战略行为的相互作用。该模型的主要结果是，平台的努力不仅对消费者剩余有积极影响，而且对寡头垄断企业的盈利能力也有积极影响。反过来，平台的最佳努力取决于外部参数，包括需求对虚假评论的敏感性。JEL分类:D21, D43, L13, L81

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Studies in Microeconomics Economics, Econometrics and Finance-Economics, Econometrics and Finance (all)

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Studies in Microeconomics seeks high quality theoretical as well as applied (or empirical) research in all areas of microeconomics (broadly defined to include other avenues of decision science such as psychology, political science and organizational behavior). In particular, we encourage submissions in new areas of Microeconomics such as in the fields of Experimental economics and Behavioral Economics. All manuscripts will be subjected to a peer-review process. The intended audience of the journal are professional economists and young researchers with an interest and expertise in microeconomics and above. In addition to full-length articles MIC is interested in publishing and promoting shorter refereed articles (letters and notes) that are pertinent to the specialist in the field of Microeconomics (broadly defined). MIC will periodically publish special issues with themes of particular interest, including articles solicited from leading scholars as well as authoritative survey articles and meta-analysis on the themed topic. We will also publish book reviews related to microeconomics, and MIC encourages publishing articles from policy practitioners dealing with microeconomic issues that have policy relevance under the section Policy Analysis and Debate.