This paper investigates the antecedents and consequences of electronic word of mouth (eWOM) credibility using a meta-analysis technique. The extant literature provides inconsistent findings related to eWOM credibility. These inconsistencies are primarily because of methodological differences or heterogeneity among previous studies, which leads to confusion amongst researchers and managers. We resolve this inconsistency and provide a conclusive takeaway on the determinants and consequences of eWOM credibility by conducting a meta-analysis of the 51 primary studies comprising 124 effect sizes. Results show that both review and reviewer-related determinants have a significant positive influence on eWOM credibility while consequences, namely purchase intention, eWOM adoption, and attitude towards the product, have a significant relationship with eWOM credibility. Furthermore, results indicate that culture, product type, and platform type are the moderating factors. Results of the study can be used by researchers to address the issue of omitted variable bias, while managers can use the findings to enhance the credibility of eWOM messages on various eWOM platforms.

中文翻译：

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电子口碑可信度前因后果的荟萃分析：文化和平台类型调节作用的调查

本文使用荟萃分析技术研究了电子口碑（eWOM）可信度的前因和后果。现有文献提供了与电子口碑可信度相关的不一致的发现。这些不一致主要是由于先前研究之间的方法差异或异质性，这导致研究人员和管理者之间的混淆。我们通过对包含 124 个效应量的 51 项初步研究进行荟萃分析，解决了这种不一致问题，并就电子口碑可信度的决定因素和后果提供了结论性结论。结果表明，评论和评论者相关的决定因素对电子口碑可信度有显着的正向影响，而后果，即购买意愿、电子口碑采用度和对产品的态度，与电子口碑可信度有显着关系。此外，结果表明文化、产品类型和平台类型是调节因素。研究人员可以使用研究结果来解决遗漏变量偏差问题，而管理者可以使用研究结果来提高各种电子口碑平台上电子口碑消息的可信度。