Brand Trust Turns TikTok Reviews into Real Purchases, Indonesian Study Finds

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FORMOSA NEWS- Denpasar- A new peer-reviewed study from Universitas Udayana in Bali shows that consumer trust in a brand plays a decisive role in converting TikTok Shop reviews into actual purchasing decisions. The research, conducted by Ni Luh Putri Surya Dewi and Ni Nyoman Kerti Yasa and published in 2026 in the Formosa Journal of Multidisciplinary Research, reveals that electronic word of mouth (e-WOM)—such as comments, video reviews, and testimonials—has a stronger impact on buying behavior when it is reinforced by brand trust. The findings matter as TikTok Shop continues to compete with major e-commerce platforms in Indonesia’s fast-growing digital economy.

Digital Commerce Meets Consumer Psychology

Indonesia is one of the world’s most active social media markets, with millions of users spending hours each day scrolling, watching, and shopping online. TikTok Shop, which blends short-form video entertainment with direct purchasing features, has emerged as a powerful social commerce platform. Despite high user engagement, its transaction volume still trails behind established players like Shopee and Tokopedia.

This gap raises an important question for businesses and policymakers: why do high levels of online interaction not always translate into sales? The Universitas Udayana study addresses this issue by examining how online reviews influence consumer decisions and how trust acts as a psychological bridge between digital content and real-world spending.

How the Research Was Conducted

The researchers focused on TikTok Shop users in Denpasar City, the capital of Bali, an area known for high internet penetration and digital literacy. The study surveyed 101 residents who had made purchases on TikTok Shop within the previous six months.

Participants completed structured questionnaires measuring three key factors:

  • Exposure to electronic word of mouth (e-WOM), including reviews and recommendations
  • Level of trust in the TikTok Shop brand and its sellers
  • Actual purchasing decisions

The data were analyzed using a statistical modeling approach that identifies both direct and indirect relationships between variables. In simple terms, the researchers looked at how online reviews influence buying decisions on their own, and how much stronger that influence becomes when consumers trust the brand.

Key Findings at a Glance

The results show a clear and consistent pattern:

  • Online reviews directly influence purchases. Consumers are more likely to buy products on TikTok Shop when they encounter positive and credible reviews from other users.
  • e-WOM builds brand trust. Reviews and testimonials do more than share information; they shape perceptions of honesty, reliability, and product quality.
  • Brand trust strongly drives buying decisions. Trust reduces perceived risk and hesitation, making consumers more confident in completing transactions.
  • Brand trust acts as a partial mediator. Online reviews influence purchases both directly and indirectly, with brand trust amplifying the overall effect.

In practical terms, reviews alone can encourage buying, but reviews supported by strong brand trust are far more effective.

Why Brand Trust Matters in Social Commerce

Unlike traditional e-commerce, TikTok Shop combines entertainment, influencers, and peer interaction in a single space. This environment creates excitement but also uncertainty. Consumers rely heavily on signals from other users to judge whether a product or seller is trustworthy.

Ni Luh Putri Surya Dewi explains that trust is not built automatically. It emerges from consistent product quality, transparent information, and positive shared experiences. When users repeatedly see credible reviews and honest feedback, they are more willing to act on recommendations.

“Electronic word of mouth works best when consumers already believe that the brand or platform will keep its promises,” Dewi notes, emphasizing that trust turns online opinions into real purchasing behavior.

Implications for Businesses and Platforms

The findings offer practical guidance for digital platforms, sellers, and marketers:

  • Actively manage reviews. Encouraging authentic customer feedback and responding to complaints can strengthen credibility.
  • Prioritize transparency. Accurate product descriptions and honest communication help build long-term trust.
  • Invest in trust-building strategies. Secure payment systems, reliable customer service, and consistent quality are essential in social commerce.
  • Leverage community influence. Trusted influencers and engaged user communities can amplify positive e-WOM while reinforcing brand trust.

For TikTok Shop, the study suggests that growth will depend not only on viral content but also on sustained trust in the platform and its sellers.

Broader Social and Economic Impact

As social commerce becomes a central part of Indonesia’s digital economy, understanding consumer trust has policy and educational relevance. Stronger trust mechanisms can protect consumers from misinformation and fraud, while helping small and medium-sized businesses compete fairly in online marketplaces.

The research also contributes to global discussions about how social media platforms influence economic behavior. By showing how psychological factors mediate digital interactions, the study provides insights relevant beyond Indonesia, especially for countries experiencing rapid growth in social commerce.

Author Profile

Ni Luh Putri Surya Dewi, S.E. is a researcher in marketing and consumer behavior at Universitas Udayana, Indonesia. Her work focuses on digital marketing, electronic word of mouth, and trust in online commerce.
Ni Nyoman Kerti Yasa, Ph.D. is a senior lecturer at Universitas Udayana with expertise in marketing strategy and consumer psychology, particularly in digital and social commerce contexts.

Source
Article Title: The Role of Brand Trust in Mediating the Influence of E-WOM on Purchasing Decisions in TikTok Shop
Journal: Formosa Journal of Multidisciplinary Research
Publication Year: 2026


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