Best Journal of Administration and Management
Vol 4 No 4 (2026): Best Journal of Administration and Management

The Effect of Product Quality and Promotion on Mineral Water Purchase Decisions: The Moderating Role of Brand Image

Martha Edellya (Sekolah Tinggi Ilmu Ekonomi Indonesia (STIESIA) Surabaya)
Ikhsan Budi Riharjo (Sekolah Tinggi Ilmu Ekonomi Indonesia (STIESIA) Surabaya)



Article Info

Publish Date
23 Sep 2026

Abstract

This study analyses the effect of product quality and promotion on purchasing decisions for Rotat Mineral's Drinking Water in Packaging (AMDK) at PT. Pintar Sumber Mineral, with brand image as a moderating variable. This is due to sales fluctuations of Rotat Mineral products in 2024, despite the product meeting national quality standards and holding an official distribution licence. These facts show that consumers' purchasing decisions are not consistent, so a study of the marketing factors that influence them is needed. The study uses a quantitative survey method. Furthermore, the population consists of consumers of AMDK of Rotat Mineral who are in Kecamatan Nita, Kabupaten Sikka. The data were collected using purposive sampling. A questionnaire was developed using a Likert scale. The data were analyzed using Partial Least Squares (PLS) with outer and inner model tests. The results show that both product quality and promotion have a significant positive effect on AMDK purchasing decisions for Rotat Mineral. Moreover, brand image can moderate the effect of product quality and promotion on purchasing decisions, strengthening the relationship between the two variables. The findings indicate that a positive brand image can increase consumers' trust in product quality and the company's promotion.

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Journal Info

Abbrev

Bejam

Publisher

Subject

Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Social Sciences

Description

Best Journal of Administration and Management is a periodical scientific journal published based on scientific journal principles aimed at publishing scientific works resulting from research, development and literature studies in the field of Administration and Management, and Scope this journal: ...