Strengthening Institutional Image in the Public Sector: The Role of Service Quality, e-WOM, and Public Trust


Authors

  • Budi Sahputra Ketaren Universitas Terbuka, Banten, Indonesia
  • Andriyansah Andriyansah Universitas Terbuka, Banten, Indonesia
  • Tengku Ahmad Helmi Universitas Islam Sumatera Utara, Medan, Indonesia

DOI:

https://doi.org/10.47065/arbitrase.v6i3.2895

Keywords:

Public Service Quality; e-WOM; Institutional Image; Public Trust

Abstract

This study aims to examine the influence of public service quality and electronic word of mouth (e-WOM) on institutional image, with public trust as a moderating variable, at the Office of State Assets and Auction Services (KPKNL) Pekanbaru. Data were collected from 183 stakeholders and analyzed using Partial Least Squares–Structural Equation Modeling (PLS-SEM). The results show that public service quality (? = 0.474; p < 0.001) and e-WOM (? = 0.233; p < 0.001) have a positive and significant effect on institutional image. The model explains 81.1% of the variance in institutional image (R² = 0.811), indicating strong predictive power. Furthermore, public trust significantly moderates the relationship between public service quality and institutional image (? = 0.201; p = 0.006), but does not moderate the relationship between e-WOM and institutional image (? = 0.072; p = 0.372). These findings highlight the differentiated role of trust in strengthening service-based reputation formation in the public sector.

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Published: 2026-03-09
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How to Cite

Ketaren, B. S., Andriyansah, A., & Helmi, T. A. (2026). Strengthening Institutional Image in the Public Sector: The Role of Service Quality, e-WOM, and Public Trust. ARBITRASE: Journal of Economics and Accounting , 6(3), 742-751. https://doi.org/10.47065/arbitrase.v6i3.2895

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