Trustworthiness of Micro-Influencers Affecting Purchase Intention in Products and Services in Bangkok, Thailand

Authors

  • Thapanee Sritisan Faculty of Business Administration, Rajapruk University

Keywords:

Trustworthiness, Purchase Intention, Micro-Influencer

Abstract

This research investigates the trustworthiness of micro-influencers affecting purchase intentions for products and services in Bangkok. The objectives are to examine: 1) the importance of micro-influencer trustworthiness, 2) the importance of purchase intentions, and 3) the trustworthiness factors affecting the purchase intentions of consumers in Bangkok. Data were gathered through a questionnaire from a stratified sample of 400 individuals who have made purchases through micro-influencers in Bangkok. Statistical analysis, including percentages, means, standard deviations, and multiple regression, was used. Results indicate that the importance level of micro-influencer trustworthiness across five aspects is generally high, particularly consistency in brand alignment. Purchase intentions among consumers in Bangkok were generally high, with a preference for brands endorsed by micro-influencers. Hypothesis testing revealed that four trustworthiness factors—credibility, engagement and responsiveness, social proof, and consistency in brand alignment—significantly affect purchase intentions at the .05 significance level. These findings emphasize the crucial role of micro-influencers in shaping consumer behavior in Bangkok’s market, offering valuable insights for marketers and businesses to leverage trustworthiness in their digital strategies.

References

Abreu, R. (2019). Social media micro-influencer marketing and purchasing intention of millennials: The role of perceived authenticity and trust. [Unpublished master’s thesis]. Dublin Business School, Ireland. https://esource.dbs.ie/handle/10788/3674

Andonopoulos, V., Lee, J. (Jiyeon), & Mathies, C. (2023). Authentic isn't always best: When inauthentic social media influencers induce positive consumer purchase intention through inspiration. Journal of Retailing and Consumer Services, 75, Article 103521. https://doi.org/10.1016/j.jretconser.2023.103521

Arora, A., Bansal, S., Kandpal, C., Aswani, R., & Dwivedi, Y. (2019). Measuring social media influencer index-insights from Facebook, Twitter and Instagram. Journal of Retailing and Consumer Services, 49(1), 86-101. https://doi.org/10.1016/j.jretconser.2019.03.012

Audrezet, A., de Kerviler, G., & Moulard, J. G. (2020). Authenticity under threat: When social media influencers need to go beyond self-presentation. Journal of Business Research, 117(9), 557-569. https://doi.org/10.1016/j.jbusres.2018.07.008

Chekima, B., Chekima, F. Z., & Adis, A.-A. A. (2020). Social media influencer in advertising: The role of attractiveness, expertise and trustworthiness. Journal of Economics and Business, 3(4), 1-10. https://doi.org/10.31014/aior.1992.03.04.298

Boerman, S. C., Willemsen, L. M., & Van Der Aa, E. P. (2017). “This post Is sponsored”: Effects of sponsorship disclosure on persuasion knowledge and electronic word of mouth in the context of Facebook. Journal of Interactive Marketing, 38(1), 82-92. https://doi.org/10.1016/j.intmar.2016.12.002

Breves, P. L., Liebers, N., Abt, M., & Kunze, A. (2019). The perceived fit between instagram influencers and the endorsed brand: How influencer-brand fit affects source credibility and persuasive effectiveness. Journal of Advertising Research, 59, 440-454. https://doi.org/10.2501/JAR-2019-030

Bruns, I. (2018). ‘Perceived authenticity’ and ‘trust’ in social media driven influencer marketing and their influence on intentions-to-buy of 18-24-year-olds in Ireland. [Unpublished master’s thesis]. Dublin Business School, Ireland. https://shorturl.asia/unUV6

Chakraborty, U. (2019). The impact of source credibility in online reviews on purchase intention: The mediating roles of brand equity dimensions. Journal of Research in Interactive Marketing, 13(2), 142-161. https://doi.org/10.1108/JRIM-06-2018-0080

Chapple, C. & Cownie, F. (2017). An investigation into viewers’ trust in and response towards disclosed paid-for endorsements by YouTube lifestyle Vloggers. Journal of Promotional Communications, 5(2), 101-138. https://promotionalcommunications.org/index.php/pc/article/view/95/109

Chetioui, Y., Benlafqih, H. & Lebdaoui, H. (2020). How fashion influencers contribute to consumers' purchase intention. Journal of Fashion Marketing and Management, 24(3), 361-380. https://doi.org/10.1108/JFMM-08-2019-0157

de Veirman, M., Cauberghe, V., & Hudders, L. (2017). Marketing through Instagram influencers: The impact of number of followers and product divergence on brand attitude. International Journal of Advertising, 36(5), 798-828. https://doi.org/10.1080/02650487.2017.1348035

Erkan, I., & Evans, C. (2016). The influence of eWOM in social media on consumers’ purchase intentions: An extended approach to information adoption. Computers in Human Behavior, 61, 47–55. https://doi.org/10.1016/j.chb.2016.03.003

Firmansyah, N., & Ali, H. (2019). Consumer Trust Model: The Impact of Satisfaction and E- Service Quality toward Repurchase Intention in E-Commerce. Saudi Journal of Humanities and Social Sciences, 4(8), 552–559. https://doi.org/10.21276/sjhss.2019.4.8.4

Gunawan, D. D., & Huarng, K.-H. (2015). Viral effects of social network and media on consumers’ purchase intention. Journal of Business Research, 68(11), 2237-2241. https://doi.org/10.1016/j.jbusres.2015.06.004

Horanage, C. P. J., & Hautala, M.-R. (2021). Does the content format matter?: A study of how social media micro-influencers’ content format persuades the followers’ information processing route in the engagement and purchase intention. [Unpublished doctoral dissertation]. Luleå University of Technology. https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85963

Ilhamalimy, R. R., & Ali, H. (2020). Model perceived risk and trust: e-WOM and purchase intention (the role of trust mediating in online shopping in shopee Indonesia). Dinasti International Journal of Digital Business Management, 2(2), 204-221. https://doi.org/10.31933/dijdbm.v2i2

Jittinee Jintanasant. (2017). Factors influencing Thai travellers’ decision to use hostel services. [Unpublished master’s thesis]. Mahidol University. https://archive.cm.mahidol.ac.th/handle/123456789/2590

Kunlayada Jampunyakul, & Pornpun Prajaknate. (2021). Consumer’s purchasing decision through e-WOM and influencer’s perceived credibility. Siam Communication Review, 20(2), 166–184. https://so05.tci-thaijo.org/index.php/commartsreviewsiamu/article/view/256074

Laddawan Petchroj, & Atchara Chamniprasart. (2004). Research methodology. Pimdeekarnpim.

Larasetiati, M., & Ali, H. (2019). Model of consumer trust: Analysis of perceived usefulness and security toward repurchase intention in online travel agent. Saudi Journal of Economics and Finance, 3(8), 350–357. https://www.saudijournals.com/media/articles/SJEF-38-350-357.pdf

Li, W., Zhao, F., Lee, J. M., Park, J, Septianto, F. & Seo, Y. (2024). How micro- (vs. mega-) influencers generate word of mouth in the digital economy age: The moderating role of mindset. Journal of Business Research, 171(3), Article 114387. https://doi.org/10.1016/j.jbusres.2023.114387

Lim, X. J., Radzol, A. R. bt M., Cheah, J. J.-H., & Wong, M. W. (2017). The impact of social media influencers on purchase intention and the mediation effect of customer attitude. Asian Journal of Business Research, 7(2), 19-36. https://doi.org/10.14707/ajbr.170035

Liu, D., & Guo, X. (2016). Can trust and social benefit really help? Empirical examination of purchase intentions for wearable devices. Information Development, 33(1), 43-56. https://doi.org/10.1177/0266666916635724

Liu, G. H. W., Li, Y. & Lee, N. C.-A. (2021, December 3-7). Size does matter: How do micro-influencers impact follower purchase intention on social media? In ICEB’21 Proceedings of The International Conference on Electronic Business, Vol. 21 (pp. 402-412), Nanjing, China. https://aisel.aisnet.org/iceb2021/1

Lou, C., & Yuan, S. (2019). Influencer marketing: How message value and credibility affect consumer trust of branded content on social media. Journal of Interactive Advertising, 19(1), 58-73. https://doi.org/10.1080/15252019.2018.1533501

MarketingOops!. (2021). Explore the most popular social media platforms for Influencer marketing in Asia, along with 5 important trends. https://shorturl.asia/xTClj

Marriott, H. R., & Williams, M. D. (2018). Exploring consumers perceived risk and trust for mobile shopping: A theoretical framework and empirical study. Journal of Retailing and Consumer Services, 42, 133–146. https://doi.org/10.1016/j.jretconser.2018.01.017

Martínez-López, F. J., Anaya-Sánchez, R., Fernández Giordano, M., & Lopez-Lopez, D. (2020). Behind influencer marketing: key marketing decisions and their effects on followers’ responses. Journal of Marketing Management, 36(7–8), 579–607. https://doi.org/10.1080/0267257X.2020.1738525

Masuda, H., Han, S. H., & Lee, J. (2022). Impacts of influencer attributes on purchase intentions in social media influencer marketing: Mediating roles of characterizations. Journal of Technological Forecasting & Social Change, 174, Article 121246. https://doi.org/10.1016/j.techfore.2021.121246

Mosunmola, A., & Adegbuyi, O., Kehinde, O., Agboola, M., & Olokundun, M. (2019). Perceived value dimensions on online shopping intention: The role of trust and culture. Academy of Strategic Management Journal, 18(1), 1–20. https://shorturl.asia/hOZFc

Nattawasa Sutthithada. (2020). Online marketing: Anyone can do it–winning customers and outperforming competitors (2nd ed). Witty Group.

Ngamsiri Witoonphan. (2024). The influence of social media marketing (SMM), electronic word-of-mouth (eWOM), Influencer marketing and content marketing on intentions to book hotel rooms in Pattaya. Journal of Management Science Review, 26(1), 86-99. https://so03.tci-thaijo.org/index.php/msaru/article/view/274833/183129

Nunnally, J. C. (1978). Psychometric theory (2nd ed.). McGraw-Hill.

The Office of Strategic Management. (2022). Population in Bangkok 2022: Classified by age and district. Bangkok Metropolitan Administration, Strategy and Evaluation Department. https://webportal.bangkok.go.th/pipd/page/sub/26222

Pöyry, E., Reinikainen, H., & Luoma-Aho, V. (2022). The role of social media influencers in public health communication: Case COVID-19 pandemic. International Journal of Strategic Communication, 16(3), 469–484. https://doi.org/10.1080/1553118X.2022.2042694

Pp. (2018, August 20). The micro influencer trend in Thailand still strong. In this era, every product must rely on reviews, even underwear. Brand Buffet. https://shorturl.asia/pTLCg

Ruiz-Gomez, A. (2019). Digital fame and fortune in the age of social media: A classification of social media influencers. aDResearch ESIC International Journal of Communication Research, 19(19), 8-29. https://doi.org/10.7263/adresic-019-01

Schouten, A. P., Janssen, L., & Verspaget, M. (2020). Celebrity vs. influencer endorsements in advertising: The role of identification, credibility, and product-endorser fit. International Journal of Advertising: The Review of Marketing Communications, 39(2), 258–281. https://doi.org/10.1080/02650487.2019.1634898

Tafesse, W., & Wood, B. P. (2021). Followers’ engagement with instagram influencers: The role of influencers’ content and engagement strategy. Journal of Retailing and Consumer Services, 58, Article 102303. https://doi.org/10.1016/j.jretconser.2020.102303

Wahane, A. D. (2019). Impact of social media micro-influencer on the buying behavior of lifestyle product of irish millennials. [Unpublished master’s thesis] National College of Ireland.

Wanatana Siripanmanee. (2022). Factors affecting loyalty in influencer tracking for food product reviews of consumers in each generation. [Unpublished master’s thesis]. Mahidol University.

Yamane, T. (1967). Statistics: An introductory analysis (2nd ed.). Harper and Row.

Zimmerman, J. & Ng, D. (2020). Social media marketing all in one for dummies (5th ed.). Wiley.

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Published

2025-12-15

How to Cite

Sritisan, T. (2025). Trustworthiness of Micro-Influencers Affecting Purchase Intention in Products and Services in Bangkok, Thailand. Business Administration and Management Journal Review, 17(2), 45–64. retrieved from https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/276322

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Research Articles