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How Societal and Individual Diversity Affect Brand Equity of High Versus Low Involvement Products

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  • Uddin, Mohiy
  • Siddiqui, Danish Ahmed

Abstract

The popularity of social media across the world provides a modern communication platform as well as facilitates new virtual places for online communities where buyers talk about the brand and thus experience customer value. Customer perceived ethicality is gaining importance because buyers are highly concerned about the ethical performance of a company. So the primary aim of the present research is to explore how culture, personality, and motivation influence customer value such as social and content value which one after the other along with customer perceived ethicality affect brand equity and its dimensions of high versus low involvement products on social media based communities setting. The data is gathered from 600 community members of social media in Karachi and analysis is performed through the SmartPLS software. The results of the current investigation indicate that in the environment of social media-based communities extrinsic, extroversion, and collectivism characteristics of buyers represent social value whereas, intrinsic, introversion, and individualism qualities of buyers show content value. Then both customer value and customer perceived ethicality successfully influence the target variables i.e. brand equity and its all dimensions under study. Interestingly, the impact of customer-perceived ethicality is stronger for high-involvement products. On the other hand, the impact of both customer value for instance social and content value is stronger for low-involvement products. Thus, companies should convince buyers to keep on participating in social media and provide an environment that supports diversification to strengthen brand equity and its dimensions under study.

Suggested Citation

  • Uddin, Mohiy & Siddiqui, Danish Ahmed, 2026. "How Societal and Individual Diversity Affect Brand Equity of High Versus Low Involvement Products," EconStor Preprints 341074, ZBW - Leibniz Information Centre for Economics.
  • Handle: RePEc:zbw:esprep:341074
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    1. Tat-Huei Cham & Yalini Easvaralingam, 2012. "Service quality, image and loyalty towards Malaysian hotels," International Journal of Services, Economics and Management, Inderscience Enterprises Ltd, vol. 4(4), pages 267-281.
    2. Mena, Jeannette A. & Hult, G. Tomas M. & Ferrell, O.C. & Zhang, Yufei, 2019. "Competing assessments of market-driven, sustainability-centered, and stakeholder-focused approaches to the customer-brand relationships and performance," Journal of Business Research, Elsevier, vol. 95(C), pages 531-543.
    3. Miao Li & Ying Hua & Junxuan Zhu, 2021. "From Interactivity to Brand Preference: The Role of Social Comparison and Perceived Value in a Virtual Brand Community," Sustainability, MDPI, vol. 13(2), pages 1-17, January.
    4. Liljander, Veronica & Polsa, Pia & van Riel, Allard, 2009. "Modelling consumer responses to an apparel store brand: Store image as a risk reducer," Journal of Retailing and Consumer Services, Elsevier, vol. 16(4), pages 281-290.
    5. Sarstedt, Marko & Ringle, Christian M. & Smith, Donna & Reams, Russell & Hair, Joseph F., 2014. "Partial least squares structural equation modeling (PLS-SEM): A useful tool for family business researchers," Journal of Family Business Strategy, Elsevier, vol. 5(1), pages 105-115.
    6. Rishika Rishika & Ashish Kumar & Ramkumar Janakiraman & Ram Bezawada, 2013. "The Effect of Customers' Social Media Participation on Customer Visit Frequency and Profitability: An Empirical Investigation," Information Systems Research, INFORMS, vol. 24(1), pages 108-127, March.
    7. repec:eme:mrn000:01409170610717817 is not listed on IDEAS
    8. Grisaffe, Douglas B. & Nguyen, Hieu P., 2011. "Antecedents of emotional attachment to brands," Journal of Business Research, Elsevier, vol. 64(10), pages 1052-1059, October.
    9. Blackston, Max, 2000. "Observations: Building Brand Equity by Managing the Brand&s Relationships," Journal of Advertising Research, Cambridge University Press, vol. 40(6), pages 101-105, December.
    10. Oriol Iglesias & Stefan Markovic & Jatinder Jit Singh & Vicenta Sierra, 2019. "Do Customer Perceptions of Corporate Services Brand Ethicality Improve Brand Equity? Considering the Roles of Brand Heritage, Brand Image, and Recognition Benefits," Journal of Business Ethics, Springer, vol. 154(2), pages 441-459, January.
    11. Enrique Bianchi & Juan Manuel Bruno & Francisco J. Sarabia-Sanchez, 2019. "The impact of perceived CSR on corporate reputation and purchase intention," European Journal of Management and Business Economics, Emerald Group Publishing Limited, vol. 28(3), pages 206-221, February.
    12. Beck, Susanne & Prügl, Reinhard & Walter, Katharina, 2020. "Communicating the family firm brand: Antecedents and performance effects," European Management Journal, Elsevier, vol. 38(1), pages 95-107.
    13. Smith, Rachel & Deitz, George & Royne, Marla B. & Hansen, John D. & Grünhagen, Marko & Witte, Carl, 2013. "Cross-cultural examination of online shopping behavior: A comparison of Norway, Germany, and the United States," Journal of Business Research, Elsevier, vol. 66(3), pages 328-335.
    14. Odin, Yorick & Odin, Nathalie & Valette-Florence, Pierre, 2001. "Conceptual and operational aspects of brand loyalty: an empirical investigation," Journal of Business Research, Elsevier, vol. 53(2), pages 75-84, August.
    15. Shukla, Paurav & Banerjee, Madhumita & Singh, Jaywant, 2016. "Customer commitment to luxury brands: Antecedents and consequences," Journal of Business Research, Elsevier, vol. 69(1), pages 323-331.
    16. Saboo, Alok R. & Kumar, V. & Ramani, Girish, 2016. "Evaluating the impact of social media activities on human brand sales," International Journal of Research in Marketing, Elsevier, vol. 33(3), pages 524-541.
    17. Şahika Burçin Tatar & İrem Eren-Erdoğmuş, 2016. "The effect of social media marketing on brand trust and brand loyalty for hotels," Information Technology & Tourism, Springer, vol. 16(3), pages 249-263, September.
    18. Y. Dwivedi & E. Ismagilova & L. Hughes & J. Carlson & R. Filieri & J. Jacobson & V. Jain & H. Karjaluoto & H. Kefi & A. S. Krishen & V. Kumar & M. Rahman & R. Raman & P. Rauschnabel & J. Rowley & J. S, 2021. "Setting the future of digital and social media marketing research: Perspectives and research propositions," Post-Print hal-04713688, HAL.
    19. M. M. Sulphey & Saji George, 2017. "A Study on the Relationship between Customer Satisfaction, Business Ethics and Certain Related Variables," Journal of Applied Management and Investments, Department of Business Administration and Corporate Security, International Humanitarian University, vol. 6(1), pages 67-75, February.
    20. Katja Brunk, 2012. "Un/ethical Company and Brand Perceptions: Conceptualising and Operationalising Consumer Meanings," Journal of Business Ethics, Springer, vol. 111(4), pages 551-565, December.
    21. Yu-Te Tu & Hsiao-Chien Chang, 2012. "Corporate Brand Image and Customer Satisfaction on Loyalty: An Empirical Study of Starbucks Coffee in Taiwan," Journal of Social and Development Sciences, AMH International, vol. 3(1), pages 24-32.
    22. Jintang Wang & Junyun Liao & Shiyong Zheng & Biqing Li, 2019. "Examining Drivers of Brand Community Engagement: The Moderation of Product, Brand and Consumer Characteristics," Sustainability, MDPI, vol. 11(17), pages 1-16, August.
    23. Kim, Moon-Koo & Park, Myeong-Cheol & Jeong, Dong-Heon, 2004. "The effects of customer satisfaction and switching barrier on customer loyalty in Korean mobile telecommunication services," Telecommunications Policy, Elsevier, vol. 28(2), pages 145-159, March.
    24. Sholihin, Mahfud & Pike, Richard & Mangena, Musa & Li, Jing, 2011. "Goal-setting participation and goal commitment: Examining the mediating roles of procedural fairness and interpersonal trust in a UK financial services organisation," The British Accounting Review, Elsevier, vol. 43(2), pages 135-146.
    25. Fournier, Susan, 1998. "Consumers and Their Brands: Developing Relationship Theory in Consumer Research," Journal of Consumer Research, Journal of Consumer Research Inc., vol. 24(4), pages 343-373, March.
    26. Dwivedi, Yogesh K. & Ismagilova, Elvira & Hughes, D. Laurie & Carlson, Jamie & Filieri, Raffaele & Jacobson, Jenna & Jain, Varsha & Karjaluoto, Heikki & Kefi, Hajer & Krishen, Anjala S. & Kumar, Vikra, 2021. "Setting the future of digital and social media marketing research: Perspectives and research propositions," International Journal of Information Management, Elsevier, vol. 59(C).
    27. Chi-Shiun Lai & Chih-Jen Chiu & Chin-Fang Yang & Da-Chang Pai, 2010. "The Effects of Corporate Social Responsibility on Brand Performance: The Mediating Effect of Industrial Brand Equity and Corporate Reputation," Journal of Business Ethics, Springer, vol. 95(3), pages 457-469, September.
    28. Hudson, Simon & Roth, Martin S. & Madden, Thomas J. & Hudson, Rupert, 2015. "The effects of social media on emotions, brand relationship quality, and word of mouth: An empirical study of music festival attendees," Tourism Management, Elsevier, vol. 47(C), pages 68-76.
    29. James C. Ward & Amy L. Ostrom, 2006. "Complaining to the Masses: The Role of Protest Framing in Customer-Created Complaint Web Sites," Journal of Consumer Research, Journal of Consumer Research Inc., vol. 33(2), pages 220-230, July.
    30. Malthouse, Edward C. & Haenlein, Michael & Skiera, Bernd & Wege, Egbert & Zhang, Michael, 2013. "Managing Customer Relationships in the Social Media Era: Introducing the Social CRM House," Journal of Interactive Marketing, Elsevier, vol. 27(4), pages 270-280.
    31. Cambier, Fanny & Poncin, Ingrid, 2020. "Inferring brand integrity from marketing communications: The effects of brand transparency signals in a consumer empowerment context," Journal of Business Research, Elsevier, vol. 109(C), pages 260-270.
    32. Baldus, Brian J. & Voorhees, Clay & Calantone, Roger, 2015. "Online brand community engagement: Scale development and validation," Journal of Business Research, Elsevier, vol. 68(5), pages 978-985.
    33. Das, Gopal & Agarwal, James & Malhotra, Naresh K. & Varshneya, Geetika, 2019. "Does brand experience translate into brand commitment?: A mediated-moderation model of brand passion and perceived brand ethicality," Journal of Business Research, Elsevier, vol. 95(C), pages 479-490.
    34. Christina Schamp & Mark Heitmann & Robin Katzenstein, 2019. "Consideration of ethical attributes along the consumer decision-making journey," Journal of the Academy of Marketing Science, Springer, vol. 47(2), pages 328-348, March.
    35. Simona Romani & Silvia Grappi & Richard P. Bagozzi, 2016. "Corporate Socially Responsible Initiatives and Their Effects on Consumption of Green Products," Journal of Business Ethics, Springer, vol. 135(2), pages 253-264, May.
    36. Oriol Iglesias & Stefan Markovic & Mehdi Bagherzadeh & Jatinder Jit Singh, 2020. "Co-creation: A Key Link Between Corporate Social Responsibility, Customer Trust, and Customer Loyalty," Journal of Business Ethics, Springer, vol. 163(1), pages 151-166, April.
    37. Alexander Chernev & Sean Blair, 2015. "Doing Well by Doing Good: The Benevolent Halo of Corporate Social Responsibility," Journal of Consumer Research, Journal of Consumer Research Inc., vol. 41(6), pages 1412-1425.
    38. Xi, Nannan & Hamari, Juho, 2020. "Does gamification affect brand engagement and equity? A study in online brand communities," Journal of Business Research, Elsevier, vol. 109(C), pages 449-460.
    39. de Villiers, Rouxelle, 2015. "Consumer brand enmeshment: Typography and complexity modeling of consumer brand engagement and brand loyalty enactments," Journal of Business Research, Elsevier, vol. 68(9), pages 1953-1963.
    40. Netemeyer, Richard G. & Krishnan, Balaji & Pullig, Chris & Wang, Guangping & Yagci, Mehmet & Dean, Dwane & Ricks, Joe & Wirth, Ferdinand, 2004. "Developing and validating measures of facets of customer-based brand equity," Journal of Business Research, Elsevier, vol. 57(2), pages 209-224, February.
    41. Smith, Andrew N. & Fischer, Eileen & Yongjian, Chen, 2012. "How Does Brand-related User-generated Content Differ across YouTube, Facebook, and Twitter?," Journal of Interactive Marketing, Elsevier, vol. 26(2), pages 102-113.
    42. Barbara Carroll & Aaron Ahuvia, 2006. "Some antecedents and outcomes of brand love," Marketing Letters, Springer, vol. 17(2), pages 79-89, April.
    43. Camarero, Carmen & Garrido, María José & Vicente, Eva, 2010. "Components of art exhibition brand equity for internal and external visitors," Tourism Management, Elsevier, vol. 31(4), pages 495-504.
    44. Veland Ramadani & Amir Demiri & Samije Saiti-Demiri, 2014. "Social media channels: the factors that influence the behavioural intention of customers," International Journal of Business and Globalisation, Inderscience Enterprises Ltd, vol. 12(3), pages 297-314.
    45. Hollebeek, Linda D. & Glynn, Mark S. & Brodie, Roderick J., 2014. "Consumer Brand Engagement in Social Media: Conceptualization, Scale Development and Validation," Journal of Interactive Marketing, Elsevier, vol. 28(2), pages 149-165.
    46. Ling‐Ling Wu & Ya‐Lan Chuang & Pin‐Yuen Chen, 2008. "Motivation for using search engines: A two‐factor model," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 59(11), pages 1829-1840, September.
    47. Kaplan, Andreas M. & Haenlein, Michael, 2010. "Users of the world, unite! The challenges and opportunities of Social Media," Business Horizons, Elsevier, vol. 53(1), pages 59-68, January.
    48. Keller, Kevin Lane, 2003. "Brand Synthesis: The Multidimensionality of Brand Knowledge," Journal of Consumer Research, Journal of Consumer Research Inc., vol. 29(4), pages 595-600, March.
    49. Cleveland, Mark & Chang, William, 2009. "Migration and materialism: The roles of ethnic identity, religiosity, and generation," Journal of Business Research, Elsevier, vol. 62(10), pages 963-971, October.
    50. Khim-Yong Goh & Cheng-Suang Heng & Zhijie Lin, 2013. "Social Media Brand Community and Consumer Behavior: Quantifying the Relative Impact of User- and Marketer-Generated Content," Information Systems Research, INFORMS, vol. 24(1), pages 88-107, March.
    51. He, Hongwei & Li, Yan & Harris, Lloyd, 2012. "Social identity perspective on brand loyalty," Journal of Business Research, Elsevier, vol. 65(5), pages 648-657.
    52. Kietzmann, Jan H. & Hermkens, Kristopher & McCarthy, Ian P. & Silvestre, Bruno S., 2011. "Social media? Get serious! Understanding the functional building blocks of social media," Business Horizons, Elsevier, vol. 54(3), pages 241-251, May.
    53. Simona Romani & Silvia Grappi & Richard P. Bagozzi, 2016. "Erratum to: Corporate Socially Responsible Initiatives and Their Effects on Consumption of Green Products," Journal of Business Ethics, Springer, vol. 135(2), pages 399-399, May.
    54. Algharabat, Raed & Rana, Nripendra P. & Alalwan, Ali Abdallah & Baabdullah, Abdullah & Gupta, Ashish, 2020. "Investigating the antecedents of customer brand engagement and consumer-based brand equity in social media," Journal of Retailing and Consumer Services, Elsevier, vol. 53(C).
    55. Cova, Bernard & Dalli, Daniele, 2009. "Working Consumers: The Next Step in Marketing Theory?," MPRA Paper 36717, University Library of Munich, Germany.
    56. Xiang, Zheng & Gretzel, Ulrike, 2010. "Role of social media in online travel information search," Tourism Management, Elsevier, vol. 31(2), pages 179-188.
    57. Namin, Aidin, 2017. "Revisiting customers' perception of service quality in fast food restaurants," Journal of Retailing and Consumer Services, Elsevier, vol. 34(C), pages 70-81.
    58. Streukens, Sandra & Leroi-Werelds, Sara, 2016. "Bootstrapping and PLS-SEM: A step-by-step guide to get more out of your bootstrap results," European Management Journal, Elsevier, vol. 34(6), pages 618-632.
    59. Brodie, Roderick J. & Ilic, Ana & Juric, Biljana & Hollebeek, Linda, 2013. "Consumer engagement in a virtual brand community: An exploratory analysis," Journal of Business Research, Elsevier, vol. 66(1), pages 105-114.
    60. Yoganathan, Vignesh & Osburg, Victoria-Sophie & Akhtar, Pervaiz, 2019. "Sensory stimulation for sensible consumption: Multisensory marketing for e-tailing of ethical brands," Journal of Business Research, Elsevier, vol. 96(C), pages 386-396.
    61. Raiswa Saha & Shashi & Roberto Cerchione & Rajwinder Singh & Richa Dahiya, 2020. "Effect of ethical leadership and corporate social responsibility on firm performance: A systematic review," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 27(2), pages 409-429, March.
    62. Garrett P. Sonnier & Leigh McAlister & Oliver J. Rutz, 2011. "A Dynamic Model of the Effect of Online Communications on Firm Sales," Marketing Science, INFORMS, vol. 30(4), pages 702-716, July.
    63. Filipe, Sandra & Marques, Susana Henriques & Salgueiro, Maria de Fátima, 2017. "Customers' relationship with their grocery store: Direct and moderating effects from store format and loyalty programs," Journal of Retailing and Consumer Services, Elsevier, vol. 37(C), pages 78-88.
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