Objectives: To examine the effects of brand trust, brand image, and service quality on purchasing decisions among Mie Gacoan customers in Sidoarjo. Methods: Quantitative research involving 100 respondents selected through purposive sampling, analyzed using PLS-SEM with SmartPLS 3.0. Research Gap/Novelty: Integrates brand-related factors and service quality to explain purchasing decisions in the competitive culinary industry. Results: Brand trust, brand image, and service quality positively influence customers' purchasing decisions. Conclusion: Strengthening brand trust, maintaining a favorable brand image, and improving service quality are essential for enhancing purchasing decisions.
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