The Impact of Influencer Credibility and Electronic Word of Mouth (e-WOM) on Purchase Intention: The Mediating Role of Brand Image among Consumers in Sulaymaniyah City

Authors

  • Abdulsamad Qadir Hussain Department of Public Relations and Marketing, Technical College of Administration, Sulaimani Polytechnic University, Sulaymaniyah, Kurdistan Region, Iraq.
  • Nali Tahisn Faeq Department of Public Relations and Marketing, Technical College of Administration, Sulaimani Polytechnic University, Sulaymaniyah, Kurdistan Region, Iraq.

DOI:

https://doi.org/10.26750/crj06j80

Keywords:

Influencers Credibility, Electronic Word of Mouth, Brand Image, Purchase Intention

Abstract

The increasing role of technology in marketing and customer service, primarily through social media, has transformed consumer behavior in the Kurdistan Region of Iraq (KRI), particularly in Sulaymaniyah. Consumers now have greater access to information, affecting their purchasing behavior, brand loyalty, and willingness to buy. Influencers and user-generated content have shifted consumers’ research activities online, significantly affecting both urban and rural populations, as well as high- and low-income individuals, particularly among younger consumers in Sulaymaniyah. A quantitative survey was administered via a structured online questionnaire distributed across several social media platforms, including Facebook, Instagram, WhatsApp, Telegram, and Viber, which are widely used in Sulaymaniyah. Using non-probability sampling methods (convenience and snowball), 417 valid responses were collected between 18 April and 1 July 2025.  The items were measured on a five-point Likert scale. Data were analyzed using SPSS version 25, employing descriptive statistics, reliability analysis, correlations, multiple regression, and mediation analysis. The results show that influencer credibility and e-WOM significantly predict purchase intention; brand image also exerts a positive effect and partially mediates the relationships between the independent variables and purchase intention. The study contributes to the limited body of regional literature by providing evidence from Sulaymaniyah and offers practical guidance to firms on how to partner with credible influencers and encourage authentic user-generated content to strengthen brand image and drive purchase behavior.

References

Aaker, D.A. (1992) ‘The Value of Brand Equity’, Journal of Business Strategy, 13(4), pp. 27–32. doi:10.1108/eb039503.

Abdul Aziz, N., Othman, N.A. and Abdul Murad, S.M. Bin (2023) ‘The effects of social support and social media influencers’ credibility on emotional brand attachment: The mediating roles of trust in multichannel’, Social Sciences and Humanities Open, 8(1), p. 100727. doi:10.1016/j.ssaho.2023.100727.

Afifah, L.I.N., Worang, F.G. and Arie, F.V. (2022) ‘Jurnal EMBA Vol . 10 No . 1 , Januari 2022 , Hal . 869-878 E . T . Lontoh ., B . Tewal ., R . Saerang’, 10(1), pp. 869–878.

Ahmad Tajuddin, U.N.R. et al. (2020) ‘Electronic Word-of-Mouth (E-WOM), Brand Image and Consumer Purchase Intention on Healthcare Products’, Journal of Accounting Research, Organization and Economics, 3(1), pp. 73–83. doi:10.24815/jaroe.v3i1.16823.

Ajzen, I. (1991) ‘The Theory of Planned Behavior : Organizational Behavior and Human Decision Processes.’, University of Massachusetts at Amherst, pp. 179–211.

Ajzen, I. (2020) ‘Attitude Structure and Behavior’, Attitude Structure and Function, (January 1989), pp. 255–288. doi:10.4324/9781315801780-15.

Al-Darraji, Z., Al Mansour, Z. and Rezai, S. (2020) ‘Similarity, Familiarity, and Credibility in influencers and their impact on purchasing intention’, Business Administration, 1(1), pp. 1–41.

AlFarraj, O. et al. (2021) ‘Examining the impact of influencers’ credibility dimensions: attractiveness, trustworthiness and expertise on the purchase intention in the aesthetic dermatology industry’, Review of International Business and Strategy, 31(3), pp. 355–374. doi:10.1108/RIBS-07-2020-0089.

Atika, A., Kusumawati, A. and Iqbal, M. (2017) ‘the Effect of Electronic Word of Mouth, Message Source Credibility, Information Quality on Brand Image and Purchase Intention’, EKUITAS (Jurnal Ekonomi dan Keuangan), 20(1), p. 94. doi:10.24034/j25485024.y2016.v20.i1.1780.

Brown, D. and Hayes, N. (2008) ‘Influencer marketing’, Influencer marketing, (February), pp. 1–235. doi:10.4324/9780080557700.

Cahyanaputra, M., Jimmy, Y. and Annas, M. (2022) ‘Factors Affecting Purchase Intention and Purchase Behaviour Electronic Products (Home Appliance) in Online Transaction’. doi:10.4108/eai.7-10-2021.2316222.

Casaló, L. V, Flavián, C. and Ibáñez-Sánchez, S. (2020) ‘Influencers on Instagram: Antecedents and consequences of opinion leadership’, Journal of Business Research, 117(October 2017), pp. 510–519. doi:10.1016/j.jbusres.2018.07.005.

Chakraborty, U. and Bhat, S. (2018) ‘Effect of Credible Reviews on Brand Image: A Mixed Method Approach’, IIM Kozhikode Society and Management Review, 7(1), pp. 13–22. doi:10.1177/2277975217733873.

Cheung, C.M.K. and Thadani, D.R. (2012) ‘The impact of electronic word-of-mouth communication: A literature analysis and integrative model’, Decision Support Systems, 54(1), pp. 461–470. doi:10.1016/j.dss.2012.06.008.

Dodds, W.B., Monroe, K.B. and Grewal, D. (1991) ‘Effects of Price, Brand, and Store Information on Buyers’ Product Evaluations’, Journal of Marketing Research, 28(3), p. 307. doi:10.2307/3172866.

Erdem, T. and Swait, J. (1998) ‘Brand equity as a signaling’, Journal of consumer Psychology, pp. 131–157.

Haque, A. et al. (2015) ‘Purchase intention of foreign products: A study on Bangladeshi consumer perspective’, SAGE Open, 5(2), pp. 1–12. doi:10.1177/2158244015592680.

Hovland, C.I. and Weiss, W. (1951) ‘The influence of source credibility on communication effectiveness’, Public Opinion Quarterly, 15(4), pp. 635–650. doi:10.1086/266350.

Jalilvand, M.R. and Samiei, N. (2012) ‘The effect of electronic word of mouth on brand image and purchase intention: An empirical study in the automobile industry in Iran’, Marketing Intelligence and Planning, 30(4), pp. 460–476. doi:10.1108/02634501211231946.

Keller, K.L. (1993) ‘and Measuring , Brand Managing Customer-Based Equity’, Journal of Marketing, 57(1), pp. 1–22.

Kelman, H.C. (2019) ‘Further Thoughts on the Processes of Compliance, Identification, and Internalization’, Social Power and Political Influence, pp. 125–171. doi:10.4324/9781315129693-6.

Kemeç and Fulya, H. (2021) The Relationships among Influencer Credibility, Brand Trust, and Purchase Intention: The Case of Instagram, Journal of Consumer and Consumption Research. Available at: https://orcid.org/0000-.

Kemeç, U. (2020) ‘The effect of influencer credibility on brand trust and purchase intention: a study on instagram’, p. 112.

Kotler, Philip ; keller, K. (2019) No 主観的健康感を中心とした在宅高齢者における 健康関連指標に関する共分散構造分析Title, Sustainability (Switzerland). Available at: http://scioteca.caf.com/bitstream/handle/123456789/1091/RED2017-Eng-8ene.pdf?sequence=12&isAllowed=y%0Ahttp://dx.doi.org/10.1016/j.regsciurbeco.2008.06.005%0Ahttps://www.researchgate.net/publication/305320484_SISTEM_PEMBETUNGAN_TERPUSAT_STRATEGI_MELESTARI.

Kudeshia, C. and Kumar, A. (2017) ‘Social eWOM: does it affect the brand attitude and purchase intention of brands?’, Management Research Review, 40(3), pp. 310–330. doi:10.1108/MRR-07-2015-0161.

Lee, S. and Choeh, J.Y. (2020) ‘Using the social influence of electronic word-of-mouth for predicting product sales: The moderating effect of review or reviewer helpfulness and product type’, Sustainability (Switzerland), 12(19). doi:10.3390/SU12197952.

Li, J. et al. (2022) ‘What Influences Consumers’ Intention to Purchase Innovative Products: Evidence From China’, Frontiers in Psychology, 13(March). doi:10.3389/fpsyg.2022.838244.

Lou, C. and 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), pp. 58–73. doi:10.1080/15252019.2018.1533501.

Mabkhot, H., Isa, N.M. and Mabkhot, A. (2022) ‘The Influence of the Credibility of Social Media Influencers SMIs on the Consumers’ Purchase Intentions: Evidence from Saudi Arabia’, Sustainability (Switzerland), 14(19). doi:10.3390/su141912323.

Meenaghan, T. (1995) ‘The role of advertising in brand image development’, Journal of Product & Brand Management, 4(4), pp. 23–34. doi:10.1108/10610429510097672.

Ngo, T.T.A. et al. (2024) ‘The impact of eWOM information in social media on the online purchase intention of Generation Z’, Cogent Business and Management, 11(1), p. doi:10.1080/23311975.2024.2316933.

Nugroho, S.D.P., Rahayu, M. and Hapsari, R.D.V. (2022) ‘The impacts of social media influencer’s credibility attributes on gen Z purchase intention with brand image as mediation’, International Journal of Research in Business and Social Science (2147- 4478), 11(5), pp. 18–32. doi:10.20525/ijrbs.v11i5.1893.

Nurhandayani, A. et al. (2019) ‘The Impact of Social Media Influencer and Brand Images to Purchase Intention’, Universitas Brawijaya Journal of Applied Management (JAM), 17(4), pp. 650–661. Available at: http://dx.

Nursyabani, A.P. and Silvianita, A. (2023) ‘The Effects of Celebrity Endorser and Electronic Word of Mouth on Purchase Intention With Brand Image as Intervening Variable on Wardah Lipstick Products’, International Journal of Advanced Research in Economics and Finance, 5(1), pp. 273–286. doi:10.55057/ijaref.2023.5.1.24.

Ohanian, R. (1990) ‘Construction and validation of a scale to measure celebrity endorsers’ perceived expertise, trustworthiness, and attractiveness’, Journal of Advertising, 19(3), pp. 39–52. doi:10.1080/00913367.1990.10673191.

ONURLUBAŞ, E. (2019) ‘the Mediating Role of Brand Image on the Effect of Electronic Word of Mouth Marketing on Purchasing Intention’, the Journal of Academic Social Sciences, 88(88), pp. 152–174. doi:10.16992/asos.14739.

R.A.S.D.Rathnayake and V.G.P. Lakshika (2023) ‘Impact Of Social Media Influencers’ Credibility on The Purchase Intention: Reference to The Beauty Industry’, Asian Journal of Marketing Management, 2(01). doi:10.31357/ajmm.v2i01.6254.

Reimer, T. and Benkenstein, M. (2016) ‘Altruistic eWOM marketing: More than an alternative to monetary incentives’, Journal of Retailing and Consumer Services, 31, pp. 323–333. doi:10.1016/j.jretconser.2016.04.003.

Saima and Khan, M.A. (2020) ‘Effect of Social Media Influencer Marketing on Consumers’ Purchase Intention and the Mediating Role of Credibility’, Journal of Promotion Management, 27(4), pp. 503–523. doi:10.1080/10496491.2020.1851847.

Sari, R.I. and Praswati, A.N. (2024) ‘THE INFLUENCE OF PROMOTION AND INFLUENCERS’ CREDIBILITY ON PURCHASE INTENTION WITH BRAND IMAGE AS A MEDIATION VARIABLE (STUDY ON SHOPEE USERS AMONG STUDENTS OF UNIVERSITAS MUHAMMADIYAH SURAKARTA)’, 7(2), pp. 2196–2207.

Sesar, V., Martinčević, I. and Boguszewicz-Kreft, M. (2022) ‘Relationship between Advertising Disclosure, Influencer Credibility and Purchase Intention’, Journal of Risk and Financial Management, 15(7). doi:10.3390/jrfm15070276.

Sherbaz Khan (2023) ‘the Role of Digital Influencer Credibility on Purchase Intention and the Mediating Effect of Customer Trust and Engagement’, Global Journal for Management and Administrative Sciences, 4(1), pp. 19–45. doi:10.46568/gjmas.v4i1.177.

Silvianita, A. and Nursyabani, A. (2023) ‘The influence of celebrity endorser and electronic word of mounth on purchase decision with brand image as an intervening variable on MS Glow Products’, Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan, 5(6), pp. 2553–2565. doi:10.32670/fairvalue.v5i6.2927.

Sokolova, K. and Kefi, H. (2020) ‘Instagram and YouTube bloggers promote it, why should I buy? How credibility and parasocial interaction influence purchase intentions’, Journal of Retailing and Consumer Services, 53(September 2018). doi:10.1016/j.jretconser.2019.01.011.

Tajuddin, U.N.R.A. et al. (2018) ‘Role of Brand Image on the Relationship Between E-Wom and Consumer Purchase Intention : Dietary Supplementconsumers Perspective’, International Journal ofBusiness andManagement Studies, 07(02), pp. 583–596.

Younus, M. and Anjum, S. (2023) ‘Effects of electronic word of mouth on the purchase intention of millennials (Gen Y) of Pakistan: Mediating role of brand image and perceived quality’, Business Review, 18(1), pp. 71–90. doi:10.54784/1990-6587.1526.

Yulizar, S.P., Usman, O. and Krissanya, N. (2024) ‘The Influence of Influencer Credibility, Social Media Marketing, and E-Wom on Brand Image and Its Impact on Intention to Purchase Local Skincare Among Gen Z (Study on Somethinc Local Skincare)’, International Student Conference on Business, Education, Economics, Accounting, and Management (ISC-BEAM), 2(1), pp. 2577–2594. doi:10.21009/isc-beam.012.198.

Published

2026-06-20

Issue

Section

Humanities & Social Sciences

How to Cite

The Impact of Influencer Credibility and Electronic Word of Mouth (e-WOM) on Purchase Intention: The Mediating Role of Brand Image among Consumers in Sulaymaniyah City. (2026). Raparin Journal of Humanities (RJH), 13(2), 1006-1033. https://doi.org/10.26750/crj06j80