“Buy Now or Be Left Behind!”: How Does Social Media Marketing, Celebrity Endorsement, Peer Pressure, and Testimonial Affect Online Impulse Buying Behaviour?

Authors

  • Rani Alawiah Universitas Bengkulu
  • Rina Suthia Hayu Universitas Bengkulu

DOI:

https://doi.org/10.35384/jemp.v11i2.746

Keywords:

social media marketing, celebrity endorsement, peer pressure, user generated content, online impulse buying

Abstract

The states of social commerce development in Indonesia, especially TikTok Shop, has brought significant changes in the shopping patterns of Generation Z (Gen Z). This study evaluates the influence of social media marketing, celebrity endorsement, peer pressure, and user-generated content (UGC) on Gen Z's online impulse shopping behavior. A quantitative approach was used with purposive sampling technique on 474 Gen Z respondents who actively shop at TikTok Shop. Data analysis was conducted through Structural Equation Modelling (SEM) using SmartPLS. The results indicate that all four factors had a significant positive impact on impulse purchases, with peer pressure as the most dominant factor, followed by UGC, social media marketing, and celebrity endorsement. These findings confirm that social interaction, peer influence, and the authenticity of UGC play an important role in driving Gen Z's impulsive shopping decisions. From a practical perspective, marketers are advised to create strategies that take advantage of social pressures, such as group buying features, as well as work with micro-influencers to increase consumer trust. UGC based campaigns, such as creative challenges or user experience uploads, can increase audience engagement. Additionally, TikTok's recommendation algorithm can be optimized to display product content that matches Gen Z trends and preferences.

References

Amarilys, N., Setyabudi, D., & Ayun, P. Q. (2022). The Effect of Sales Promotion Intensity and Celebrity Endorsement Content Exposure On Impulsive Purchase of Z Generation to Somethinc Local Skincare Survey of Youth Aged 19-24 Years at Jabodetabek Region). Jurnal Interaksi Online, 10(4), 9–21. https://ejournal3.undip.ac.id/index.php/interaksi-online/article/view/35781

Anaya, K. K. O., Piquero, J. R. M., Romero, C. J. P., Sales, L. M., Suñga, P. A. N., Ibañez, M. M., A, R. I., & Asi, G. M. (2024). Peer Influence and Adolescent Spending: Insights into High School Students’ Buying Behavior. 2024(1998), 1180–1189. https://doi.org/https://doi.org/10.35974/isc.v11i4.3599

Aragoncillo, L., & Orús, C. (2018). Impulse buying behaviour: An online-offline comparative and the impact of social media. Spanish Journal of Marketing - ESIC, 22(1), 42–62. https://doi.org/10.1108/SJME-03-2018-007

Asakdiyah, S., Bonaga, J. K., Maheswari, U., Prastowo, I., & Salampessy, A. P. (2024). The mediating role of customer loyalty on the effect of celebrity endorsement to impulse buying behavior. Jurnal Fokus Manajemen Bisnis, 14(1), 124–135. https://doi.org/10.12928/fokus.v14i1.10228

Balando, L. J. A., Esguerra, A. J., Mae, P., & Villanueva, D. (2024). TikTokMadeMeBuyIt : Exposure to Product-Related User-Generated Content on TikTok and the Impulsive Buying Behavior of Millennials https://doi.org/10.13140/RG.2.2.15348.56969

Chen, Y., Lu, Y., Wang, B., & Pan, Z. (2019). How do product recommendations affect impulse buying? An empirical study on WeChat social commerce. Information & Management, 56(2), 236–248. https://doi.org/https://doi.org/10.1016/j.im.2018.09.002

Cheung, M.-L., Pires, G., & Rosenberger III, P. (2020). Exploring Synergetic Effects of Social-Media Communication and Distribution Strategy on ConsumerBased Brand Equity. Asian Journal of Business Research, 10. https://doi.org/10.14707/ajbr.200078

Cheung, M. L., Leung, W. K. S., Cheah, J. H., & Ting, H. (2022). Exploring the effectiveness of emotional and rational user-generated contents in digital tourism platforms. Journal of Vacation Marketing, 28(2), 152–170. https://doi.org/10.1177/13567667211030675

Djafarova, E., & Bowes, T. (2021). ‘Instagram made Me buy it’: Generation Z impulse purchases in fashion industry. Journal of Retailing and Consumer Services, 59(xxxx), 102345. https://doi.org/10.1016/j.jretconser.2020.102345

Edwy, M. F., Anugrahani, S. I., Pradana, A. F., & Putra, I. F. A. (2023). The Phenomenon of Impulsive Buying at TikTok Shop. International Journal of Social Science Research and Review, 6 (1), 328–334. http://dx.doi.org/10.47814/ijssrr.v6i1.920

Eko Saputra, F., & Amani, A. R. (2023). The Effect of Social Media Marketing on Hedonic Shopping Value Through Online Impulsive Buying of Fashion Products (Research On Generation Z In Bandung). Asian Journal of Social and Humanities, 1(11), 941–948. https://doi.org/10.59888/ajosh.v1i11.89

Febriandika, N. R., Utami, A. P., & Millatina, A. N. (2023). Online impulse buying on TikTok platform: Evidence from Indonesia. Innovative Marketing, 19(3), 197–210. https://doi.org/10.21511/im.19(3).2023.17

Gulati, S. (2017). Impact Of Peer Pressure On Buying Behaviour. International Journal of Research, 5, 280–291. https://doi.org/10.29121/granthaalayah.v5.i6.2017.2027

Hair, J. F., Risher, J. J., Sarstedt, M., & Ringle, C. M. (2019). The Results of PLS-SEM Article information. European Business Review, 31(1), 2–24.

Hair, J., Hult, G. T. M., Ringle, C., & Sarstedt, M. (2022). A Primer on Partial Least Squares Structural Equation Modeling. In Long Range Planning (Vol. 46, Issues 1–2). SAGE Publications. https://doi.org/10.1016/j.lrp.2013.01.002

Hair Jr., J. F., Matthews, L. M., Matthews, R. L., & Sarstedt, M. (2017). PLS-SEM or CB-SEM: updated guidelines on which method to use. International Journal of Multivariate Data Analysis, 1(2), 107. https://doi.org/10.1504/ijmda.2017.10008574

Hanadian Nurhayati-Wolff. (2023). Social Commerce in Indonesia. Statista. https://www.statista.com/topics/10743/social-commerce-in-indonesia/#editorsPicks

Haniyah, N., & Andriani, M. (2025). Pengaruh Perceived Value Tiktok Live melalui Customer Engagement pada Gen-Z di Jabodetabek. Jurnal Ekonomi, Manajemen Dan Perbankan (Journal of Economics, Management and Banking), 11(1), 99–118.

Harjadi, C. N. (2024). Tren Social Commerce Makin Populer, Masyarakat Kini Hobi Belanja di Media Sosial. GoodStats. https://goodstats.id/article/tren-social-commerce-semakin-populer-masyarakat-kini-hobi-belanja-di-media-sosial-YlbSA

Herzallah, D., Liébana-Cabanillas, F., Muñoz-Leiva, F., & Zarco, C. (2025). Past, present, and future of social commerce: a bibliometric analysis. In Quality and Quantity (Issue 0123456789). Springer Netherlands. https://doi.org/10.1007/s11135-025-02103-z

Hu, X., Chen, X., & Davidson, R. (2019). Social Support, Source Credibility, Social Influence, and Impulsive Purchase Behavior in Social Commerce. International Journal of Electronic Commerce, 23(3), 297–327. https://doi.org/10.1080/10864415.2019.1619905

Ibrahim, B., Aljarah, A., & Ababneh, B. (2020). Do Social Media Marketing Activities Enhance Consumer Perception of Brands? A Meta-Analytic Examination. Journal of Promotion Management, 26(4), 544–568. https://doi.org/10.1080/10496491.2020.1719956

Ismail, A. R. (2017). The influence of perceived social media marketing activities on brand loyalty: The mediation effect of brand and value consciousness. Asia Pacific Journal of Marketing and Logistics, 29(1), 129–144. https://doi.org/10.1108/APJML-10-2015-0154

Jumaisyah, A. (2024). Scroll, Klik, Beli! Mengapa Gen Z Mudah Terpengaruh oleh Pembelian Impulsif? Kumparan.Com. https://kumparan.com/aprilia-jumaisyah-1729103314989483395/scroll-klik-beli-mengapa-gen-z-mudah-terpengaruh-oleh-pembelian-impulsif-23jTTo92YRp

Jun, M., Han, J., Zhou, Z., & Eisingerich, A. B. (2023). When is celebrity endorsement effective? Exploring the role of celebrity endorsers in enhancing key brand associations. Journal of Business Research, 164(April), 113951. https://doi.org/10.1016/j.jbusres.2023.113951

Karyadi, Z. A., Sulhaini, & Mulyono, L. E. (2023). The Influence of User-Generated Content, Conspicuous Consumption, and Flash Sales on Impulsive Buying Behavior E-Commerce with Pay Later as a Moderation Variable. International Journal of Innovative Science and Research Technology, 8(12), 472–480. www.ijisrt.com472

Kian Yeik, K., Teoh, C. W., & Soh, P. (2021). Instagram influencer marketing: Perceived social media marketing activities and online impulse buying. First Monday. https://doi.org/10.5210/fm.v26i9.11598

Kim, A. J., & Johnson, K. K. P. (2016). Power of consumers using social media: Examining the influences of brand-related user-generated content on Facebook. Computers in Human Behavior, 58, 98–108. https://doi.org/10.1016/j.chb.2015.12.047

Kimiagari, S., & Asadi Malafe, N. S. (2021). The role of cognitive and affective responses in the relationship between internal and external stimuli on online impulse buying behavior. Journal of Retailing and Consumer Services, 61(April), 102567. https://doi.org/10.1016/j.jretconser.2021.102567

Kusmaharani, A. S., & Halim, R. E. (2020). Social Influence and Online Impulse Buying of Indonesian Indie Cosmetic Products. Mix: Jurnal Ilmiah Manajemen, 10(2), 237. https://doi.org/10.22441/mix.2020.v10i2.007

Leong, L. Y., Jaafar, N. I., & Ainin, S. (2018). The effects of Facebook browsing and usage intensity on impulse purchase in f-commerce. Computers in Human Behavior, 78, 160–173. https://doi.org/10.1016/j.chb.2017.09.033

Li, C., Jiang, H., Huang, A., Chen, H., & Yu, J. (2022). Online Impulse Buying: Impact of Internet Celebrity Endorsement and Peer Pressure. Proceedings of the 2021 3rd International Conference on Economic Management and Cultural Industry (ICEMCI 2021), 203(Icemci), 922–925. https://doi.org/10.2991/assehr.k.211209.150

Li, S., Suhari, U., Shidiqqi, M. F., Aras, M., & Mani, L. (2023). The Role of Celebrity Endorsement on Impulse Buying Behavior with Customer Loyalty as a Moderating in the E-Commerce Industry. Business Economic, Communication, and Social Sciences Journal (BECOSS), 5(1), 59–72. https://doi.org/10.21512/becossjournal.v5i1.9076

Lina, Y., Hou, D., & Ali, S. (2022). Impact of online convenience on generation Z online impulsive buying behavior: The moderating role of social media celebrity. Frontiers in Psychology, 13(August), 1–17. https://doi.org/10.3389/fpsyg.2022.951249

Luo, W., & Lee, Y.-C. (2022a). How User-Generated Content Characteristics Influence the Impulsive Consumption: Moderating Effect of Tie Strength. 23, 275–294. https://doi.org/10.15813/kmr.2022.23.4.007

Mardhiana, H. R. (2024). Gen Z’s Impulse Buying Behavior of Shopping through Live- Streaming Social Commerce Platforms: Investigating the Role of Parasocial Interaction and Social Commerce Emotional Motivation. Srawung: Journal Of Social Sciences And Humanities, 3. https://doi.org/doi.org/10.56943/jssh.v3i3.588

Meng, X., Zhang, W., Li, Y., Cao, X., & Feng, X. (2020). Social media effect, investor recognition and the cross-section of stock returns. International Review of Financial Analysis, 67, 101432. https://doi.org/https://doi.org/10.1016/j.irfa.2019.101432

Nguyen, C., Tran, T., & Nguyen, T. (2024). Factors affecting users’ brand awareness through social media marketing on TikTok. Innovative Marketing, 20(1), 122–131. https://doi.org/10.21511/im.20(1).2024.11

Nurazizah, R., Saputri, M. E., Rubiyanti, N., Kartawinata, B. R., & Wijaksana, T. I. (2023). The Effect of TikTok Social Media Marketing on Impulsive Purchases of Fashion Products in the Shopee Affiliate Campaign with Hedonic Shopping Motivation as the Intervening Variable. 1–12. https://doi.org/10.46254/af03.20220254

Putri, B. A., & Madiawati, P. N. (2023). Peran Influencer Media Sosial Dan Kesadaran Merek Terhadap Keputusan Pembelian. Jurnal Fokus Manajemen Bisnis, 13(1), 28–37. https://doi.org/10.12928/fokus.v13i1.7398

Rahmawati, R., & Primanto, A. B. (2023). Buy now or regret later! How does peer influence, reviews, and viral marketing affect online impulse buying behaviour? A study of gender differences. 2021, 204–214. https://doi.org/10.2991/978-2-38476-204-0_17

Rajput, S., Jain, E., & Thakur, K. S. (2022). Content-Driven Tourism: A Model of its Precursors for Impulse Buying and Tourist Behavior Intentions. Journal of Content, Community and Communication, 16(8), 63–75. https://doi.org/10.31620/JCCC.12.22/06

Riset Populix: Tren belanja online masyarakat Indonesia. (2023). Info.Populix.Co.

Rugati, D. P., & Santoso, S. (2025). The Influence of Social Media Marketing , and Electronic Word of Mouth on Brand Trust through Brand Experience : Skincare Study Case in Indonesia. Jurnal Ekonomi, Manajemen Dan Perbankan (Journal of Economics, Management and Banking),11(1), 85–98.

Safeer, A. A. (2024). Harnessing the power of brand social media marketing on consumer online impulse buying intentions: a stimulus-organism-response framework. Journal of Product & Brand Management, 33(5), 533–544. https://doi.org/10.1108/JPBM-07-2023-4619

Sari, Y. M., Hayu, R. S., & Salim, M. (2021). The Effect of Trustworthiness, Attractiveness, Expertise, and Popularity of Celebrity Endorsement. Jurnal Manajemen Dan Kewirausahaan, 9 (2), 163–172. https://doi.org/10.26905/jmdk.v9i2.6217

Satria, A. D., Jatipuri, S., Hartanti, A. D., & Sanny, L. (2019). The impact of celebrity endorsement by social influencer celebgram on purchase intention of generation Z in fashion industry. International Journal of Recent Technology and Engineering, 8(2 Special Issue), 397–404.

Seo, E. J., & Park, J. W. (2018). A study on the effects of social media marketing activities on brand equity and customer response in the airline industry. Journal of Air Transport Management, 66(September 2017), 36–41. https://doi.org/10.1016/j.jairtraman.2017.09.014

Shetu, S. N. (2023). Do user-generated content and micro-celebrity posts encourage generation Z users to search online shopping behavior on social networking sites—the moderating role of sponsored ads. Future Business Journal, 9(1). https://doi.org/10.1186/s43093-023-00276-3

Sheu, J. J., Chu, K. T., & Wang, S. M. (2017). The associate impact of individual internal experiences and reference groups on buying behavior: A case study of animations, comics, and games consumers. Telematics and Informatics, 34(4), 314–325. https://doi.org/10.1016/j.tele.2016.08.013

Showrav, D. G. Y., Hassan, M. A., Anam, S., & Chakrabarty, A. K. (2021). Factors influencing the rapid growth of online shopping during covid-19 pandemic time in Dhaka City, Bangladesh. Academy of Strategic Management Journal, 20(SpecialIssue2), 1–13.

Singh, P., Sharma, B. K., Arora, L., & Bhatt, V. (2023). Measuring social media impact on Impulse Buying Behavior. Cogent Business and Management, 10(3). https://doi.org/10.1080/23311975.2023.2262371

Thakur, C., Diwekar, A., Reddy, B. J., & Gajjala, N. (2020). A Study of the Online Impulse Buying Behaviour during COVID-19 Pandemic. International Journal of Research in Engineering, Science and Management, 3(9), 86–90. https://doi.org/10.47607/ijresm.2020.294

Thürmer, J. L., Bieleke, M., Wieber, F., & Gollwitzer, P. M. (2020). If-then plans help regulate automatic peer influence on impulse buying. European Journal of Marketing, 54(9), 2079–2105. https://doi.org/10.1108/EJM-05-2018-0341

Thuy, T., Ngo, A., My, T., Le, T., Nguyen, T. H., Giang, T., Ngo, G. T., Duong Nguyen, T., & Le, T. G. (2022). The Impact of SNS Advertisements on Online Purchase Intention of Generation Z: An Empirical Study of TikTok in Vietnam. Journal of Asian Finance, 9(5), 497–0506. https://api.semanticscholar.org/CorpusID:272696958

Wardani, D. (2023). Pengaruh Pemasaran Media Sosial pada Brand Equity dan Brand Attitude yang mempengaruhi Purchase Intention pada aplikasi Shopee. Jurnal Ekonomi, Manajemen Dan Perbankan (Journal of Economics, Management and Banking), 9(2), 193–212. https://doi.org/10.35384/jemp.v9i2.400

Wijaya, P. Y., & Suasih, N. N. R. (2020). Peran Local Celebrity Endorsement Pada Iklan di Media Sosial Terhadap Pembelian Produk Kuliner di Provinsi Bali Pada Masa Stay Home Akibat Pandemi Covid-19. Jurnal Bisnis Strategi, 29(2), 119–133. https://doi.org/10.14710/jbs.29.2.119-133

Wolf, A. (2020). Gen Z & Social Media Influencers: The Generation Wanting a Real Experience. Honors Senior Capstone, 1–20.

Xiang, H., Chau, K. Y., Iqbal, W., Irfan, M., & Dagar, V. (2022). Determinants of Social Commerce Usage and Online Impulse Purchase: Implications for Business and Digital Revolution. Frontiers in Psychology, 13(February), 1–13. https://doi.org/10.3389/fpsyg.2022.837042

Xiang, L., Zheng, X., Lee, M. K. O., & Zhao, D. (2016). Exploring consumers’ impulse buying behavior on social commerce platform: The role of parasocial interaction. International Journal of Information Management, 36(3), 333–347. https://doi.org/https://doi.org/10.1016/j.ijinfomgt.2015.11.002

Yasin, H., Julita, J., & Hidayat, R. (2023). The Effect of Social Media on Gen Z, Impulse Buying and Lifestyle in Purchase Decisions. Journal of International Conference Proceedings, 6(3), 201–211. https://doi.org/10.32535/jicp.v6i3.2559

Yasmin, A., Helmi, A., Komaladewi, R., Deborah, I., & Naufal, A. Z. (2024). Community involvement as a mediating variable : How social media marketing activities affects customer loyalty ? Jurnal Fokus Manajemen Bisnis, 14(2), 151–163. https://doi.org/https://doi.org/10.12928/fokus.v14i2.10375

Zafar, A. U., Qiu, J., Li, Y., Wang, J., & Shahzad, M. (2021). The impact of social media celebrities’ posts and contextual interactions on impulse buying in social commerce. Computers in Human Behavior, 115. https://doi.org/10.1016/j.chb.2019.106178

Zafar, A. U., Qiu, J., & Shahzad, M. (2020). Do digital celebrities’ relationships and social climate matter? Impulse buying in f-commerce. Internet Research, 30(6), 1731–1762. https://doi.org/10.1108/INTR-04-2019-0142

Zhao, C., & Ding, L. (2024). Research on the Effect of UGC Characteristics on Consumers’ Impulse Purchase Intention in Community E.commerce Platform (Issue Icaid 2024). Atlantis Press International BV. https://doi.org/10.2991/978-94-6463-490-7_60

Zhu, Y. Q., Amelina, D., & Yen, D. C. (2020). Celebrity endorsement and impulsive buying intentions in social commerce - The case of instagram in Indonesia: Celebrity endorsement. Journal of Electronic Commerce in Organizations, 18(1), 1–17. https://doi.org/10.4018/JECO.2020010101

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2025-08-15
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