The Impact of Anthropomorphism on Customer Satisfaction in Chatbot Commerce: An Experimental Study in the Food Sector
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The empirical research on the effects of agentic commerce is still dispersed but suggests an interrelated set of commerce and psychological effects.
“The empirical research on the effects of agentic commerce is still dispersed but suggests an interrelated set of commerce and psychological effects”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Introduction (page unavailable) says empirical research on anthropomorphic chatbots in food e-commerce is limited. The Discussion (page unavailable) links chatbot design to enjoyment, attitude, trust, and customer satisfaction. These passages support a related set of psychological and commerce outcomes, but they do not establish that empirical research on agentic commerce generally is dispersed. (LLM, conf=0.85)
Experimental — accuracy not yet measuredDesign and channel factors (voice vs. text; initiation mode; anthropomorphic cues) influence perceived control and social presence, occasionally altering the direction of effects through reactance or satisfaction mechanisms.
“Fourth, design and channel factors (voice vs. text; initiation mode; anthropomorphic cues) influence perceived control and social presence, occasionally altering the direction of effects through reactance or satisfaction mechanisms [7,24,31,32,52].”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Literature review > Anthropomorphism (page not provided) says anthropomorphic design cues precede social presence, and the Discussion (page not provided) reports higher customer satisfaction with an anthropomorphic chatbot. The paper does not establish effects of voice versus text or initiation mode, changes in perceived control, or reversals of effect through reactance. (LLM, conf=0.88)
Experimental — accuracy not yet measuredLab experiments often manipulate assistant design or autonomy but measure intentions or simulated choice instead of actual checkout/payment.
“For instance, lab experiments often manipulate the design of the assistant or give them more freedom, but they measure the results as intentions or simulated choice instead of actual checkout/payment [7,8,24,38,43,52,54,63].”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Method (Research approach) describes an experiment comparing chatbots with and without anthropomorphic design features. The Method (Measurement) says it measured satisfaction, enjoyment, trust, and attitude—not intentions or simulated choice. The Discussion (Limitations and future research) confirms that the e-store stopped at the shopping cart and had no checkout process. (LLM, conf=0.85)
Experimental — accuracy not yet measuredPanels are often not random samples, and the range of topics they cover can be very limited, such as one product category, one platform, or a few task types.
“Panels are often not random samples, and the range of topics they cover can be very limited (for example, just one product category, one platform, or a few types of tasks) [7,8,41].”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Method (Data collection and sample) describes non-probability convenience and snowball sampling. The Discussion (Limitations and future research) says the experiment was limited to food products and used a restricted e-store scenario. These passages support this study as an example of a non-random sample and narrow scope, but do not establish that panels are often like this. (LLM, conf=0.86)
Experimental — accuracy not yet measuredNumerous studies exhibit robust internal validity while functioning within simulated purchasing contexts.
“Numerous studies exhibit robust internal validity while functioning within simulated purchasing contexts [7,8,24,63].”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Method (Data collection and sample; page unavailable) says participants were randomly assigned to two chatbot scenarios. The Discussion (Limitations and future research; page unavailable) describes an experimental e-store with no full checkout, supporting the simulated-purchasing part. The paper does not establish robust internal validity; it notes that the scenario was recognizable as an experiment and may have biased respondents. (LLM, conf=0.83)
Experimental — accuracy not yet measured
Satisfaction rises via problem-solving, confirmation, usefulness, and interaction/service quality.
“Satisfaction rises via problem-solving, confirmation, usefulness, and interaction/service quality.”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Literature review (Chatbot commerce; page unavailable) says that accurate recommendations and an efficient, convenient chatbot experience contribute to customer satisfaction. The Method (Measurement; page unavailable) also includes whether expectations are met in its satisfaction measure. But the paper does not establish problem-solving, confirmation, usefulness, and interaction/service quality as the pathways by which satisfaction rises; its Discussion instead identifies perceived enjoyment, attitude, and trust as mediators. (LLM, conf=0.83)
Experimental — accuracy not yet measuredSatisfaction declines when designs trigger reactance or cognitive/affective overload, which depress downstream evaluations.
“It declines when designs trigger reactance or cognitive/affective overload, which depress downstream evaluations.”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Literature review > Chatbot commerce (page unavailable) says highly human-like agents can raise expectations and cause dissatisfaction when their capabilities disappoint. That supports a possible design-related decline in satisfaction, but the paper does not attribute it to reactance or cognitive/affective overload, or show that those mechanisms depress downstream evaluations. The Literature review > Anthropomorphism instead says anthropomorphic design can help consumers cope with information overload. (LLM, conf=0.75)
Experimental — accuracy not yet measuredSatisfaction/CX/perceived service quality is mostly positive, but design can introduce negative affect (reactance, overload).
“Mostly positive, but design can introduce negative affect (reactance, overload)”
From From Recommendations to Delegation: A Systematic Review Mapping Agentic AI in E-Commerce and Its Consumer Effects (2026) · cites this paper as [7]
The Results (Correlation analysis; page unavailable) report a positive relationship between anthropomorphic design cues and customer satisfaction. The Literature review (Chatbot commerce; page unavailable) also warns that highly human-like agents can raise expectations and leave customers disappointed. However, the paper does not identify reactance as an effect, and its Anthropomorphism section says such design may help users cope with information overload rather than introduce it. (LLM, conf=0.85)
Experimental — accuracy not yet measured
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The self-check needs the paper’s full text.
Cites
On seeing human: A three-factor theory of anthropomorphism
Epley, N., Waytz, A., & Cacioppo, J. T. (2007) · Psychological Review · doi:10.1037/0033-295x.114.4.864 · Cited by 4,069 · cited 1× · see citing works
“Adding anthropomorphic attributes to the digital agent can help to reduce uncertainties while creating a feeling of familiarity [23, 25].”
BackgroundMeasuring Attitude toward the Brand and Purchase Intentions
Spears, N., & Singh, S. N. (2004) · Journal of Current Issues & Research in Advertising · doi:10.1080/10641734.2004.10505164 · Cited by 1,812 · cited 6× · see citing works
“This may result in consumers first overestimating the capabilities of these technologies and then being disappointed when the reality does not match their expectations [71].”
BackgroundInfluentialGo, E., & Sundar, S. S. (2019) · Computers in Human Behavior · doi:10.1016/j.chb.2019.01.020 · Cited by 1,089 · see citing works
Is That Car Smiling at Me? Schema Congruity as a Basis for Evaluating Anthropomorphized Products
Aggarwal, P., & McGill, A. L. (2007) · Journal of Consumer Research · doi:10.1086/518544 · Cited by 1,078 · cited 1× · see citing works
“Some product marketers have already discovered anthropomorphism and are adding human attributes to their goods and services to make them more likable [1].”
BackgroundLuo, X., Tong, S., Fang, Z., & Qu, Z. (2019) · Marketing Science · doi:10.1287/mksc.2019.1192 · Cited by 1,027 · cited 1× · see citing works
“More than ever, companies are forced to rethink how they interact with consumers and differentiate themselves by delivering better customer experiences [49].”
BackgroundCauses and consequences of mind perception
Waytz, A., Gray, K., Epley, N., & Wegner, D. M. (2010) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2010.05.006 · Cited by 759 · see citing works
Qiu, L., & Benbasat, I. (2009) · Journal of Management Information Systems · doi:10.2753/mis0742-1222250405 · Cited by 737 · see citing works
Customer service chatbots: Anthropomorphism and adoption
Sheehan, B., Jin, H. S., & Gottlieb, U. (2020) · Journal of Business Research · doi:10.1016/j.jbusres.2020.04.030 · Cited by 667 · see citing works
Epley, N., Akalis, S., Waytz, A., & Cacioppo, J. T. (2008) · Psychological Science · doi:10.1111/j.1467-9280.2008.02056.x · Cited by 632 · see citing works
Almost human: Anthropomorphism increases trust resilience in cognitive agents.
de Visser, E. J., Monfort, S. S., McKendrick, R., Smith, M. A. B., McKnight, P. E., Krueger, F., & Parasuraman, R. (2016) · Journal of Experimental Psychology: Applied · doi:10.1037/xap0000092 · Cited by 614 · see citing works
Shopping and word-of-mouth intentions on social media
Mikalef, P., Giannakos, M., & Pateli, A. (2013) · Journal of theoretical and applied electronic commerce research · doi:10.4067/s0718-18762013000100003 · Cited by 265 · see citing works
Reading people’s minds from emotion expressions in interdependent decision making.
de Melo, C. M., Carnevale, P. J., Read, S. J., & Gratch, J. (2014) · Journal of Personality and Social Psychology · doi:10.1037/a0034251 · Cited by 260 · see citing works
Flagged first, then by citations
Research works printed but not linked: 57
- [2]Agichtein, E., Hakkani-Tur, D., Kallumadi, S., & Malmasi, S. (2020). ConvERSe’20: the WSDM 2020 workshop on conversational systems for e-commerce recommendations and search. Proceedings of the 13th International Conference on Web Search and Data Mining, 897–898.
- [4]Anshu K Gaur L Singh G Impact of customer experience on attitude and repurchase intention in online grocery retailing: A moderation mechanism of value Co-creation Journal of Retailing and Consumer Service 2022 64 1 13 10.1016/j.jretconser.2021.102798 · DOI
- [5]Araujo T Living up to the chatbot hype: The influence of anthropomorphic design cues and communicative agency framing on conversational agent and company perceptions Computers in Human Behavior 2018 85 183 189 10.1016/j.chb.2018.03.051 · DOI · Paper page
- [7]Baron R Kenny D The moderator-mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations Journal of Personality and Social Psychology 1986 51 6 1173 1182 10.1037/0022-3514.51.6.1173 3806354 · DOI · Paper page
- [9]Bilgihan A Kandampully J Zhang T Towards a unified customer experience in online shopping environments International Journal of Quality and Service Sciences 2016 8 1 102 119 10.1108/IJQSS-07-2015-0054 · DOI
- [10]Bleier A Harmeling CM Palmatier R Creating effective online customer experiences Journal of Marketing 2019 83 2 98 119 10.1177/0022242918809930 · DOI
- [11]Blut, M., Wang, C., Wünderlich, N. V., & Brock, C. (2021). Understanding anthropomorphism in service provision: a meta-analysis of physical robots, chatbots, and other AI. Journal of the Academy of Marketing Science, 1–27.
- [12]Brown SA Fuller R Thatcher SM Impression formation and durability in mediated communication Journal of the Association for Information Systems 2016 17 9 614 647 10.17705/1jais.00436 · DOI
- [13]Burgoon J Bonito J Bengtsson B Cederberg C Lundeberg M Allspach L Interactivity in human-computer interaction: A study of credibility, understanding, and influence Computers in Human Behavior 2000 16 6 553 574 10.1016/S0747-5632(00)00029-7 · DOI
- [14]Chaudhuri A Emotion and reason in consumer behavior 2006 Routledge
- [15]Chen, J.-S., Le, T.-T., & Florence, D. (2021). Usability and responsiveness of artificial intelligence chatbot on online customer experience in e-retailing. International Journal of Retail & Distribution Management, Vol. (No.) ahead-of-print, pp-pp ahead-of-print.
- [16]Chung M Ko E Joung H Kim S Chatbot e-service and customer satisfaction regarding luxury brands Journal of Business Research 2020 117 9 587 595 10.1016/j.jbusres.2018.10.004 · DOI
- [17]Crolic C Thomaz F Hadi R Stephen AT Blame the Bot: Anthropomorphism and anger in customer-chatbot interactions Journal of Marketing 2021 86 1 132 148 10.1177/00222429211045687 · DOI
- [18]Cyr D Hassanein K Head M Ivanov A The role of social presence in establishing loyalty in E-service environments Interacting with Computers 2007 19 1 43 56 10.1016/j.intcom.2006.07.010 · DOI
- [19]Darke PR Brady M Benedicktus RL Wilson AE Feeling close from afar: The role of psychological distance in offsetting distrust in unfamiliar online retailers Journal of Retailing 2016 92 3 287 299 10.1016/j.jretai.2016.02.001 · DOI
- [21]Elder RS Schlosser AE Poor M Lidan X So close i can almost sense it: The interplay between sensory imagery and psychological distance Journal of Consumer Research 2017 44 4 877 894 10.1093/jcr/ucx070 · DOI
- [24]Epley N Waytz A Akalis S Cacioppo JT When we need a human: Motivational determinants of anthropomorphism Social Cognition 2008 26 2 143 155 10.1521/soco.2008.26.2.143 · DOI
- [26]Eeuwen, M. van (2017). Mobile conversational commerce: Messenger chatbots as the next interface between businesses and consumers. Master’s thesis, University of Twente.
- [27]Feine J Gnewuch U Morana S Maedche A A taxonomy of social cues for conversational agents Journal of Human Computer Studies 2019 132 138 161 10.1016/j.ijhcs.2019.07.009 · DOI
- [28]Field A Discovering statistics using SPSS: (and sex and drugs and rock 'n' roll) 2009 SAGE Publications
- [30]Gefen D Straub D Managing user trust in B2C E-services E-Service Journal 2003 2 2 7 24 10.2979/esj.2003.2.2.7 · DOI · Paper page
- [32]Goetz, J., Kiesler, S., & Powers, A. (2003). Matching robot appearance and behavior to tasks to improve human-robot cooperation. Proceedings of the 12th IEEE International Workshop on Robot and Human Interactive Communication, 55–60.
- [33]Han MC The impact of anthropomorphism on consumers’ purchase decision in chatbot commerce Journal of Internet Commerce 2021 20 2 1 20
- [34]Hair J Black W Babin B Anderson R Multivariate data analysis 2010 Prentice Hall
- [35]Hassanein K Head M The impact of infusing social presence in the web interface: An investigation across product types International Journal of Electronic Commerce 2005 10 2 31 55 10.2753/JEC1086-4415100202 · DOI
- [36]Hayes AF Partial, conditional, and moderated mediation: Quantification, inference, and interpretation Communication Monographs 2018 85 1 4 40 10.1080/03637751.2017.1352100 · DOI · Paper page
- [38]Irfan W Siddiqui D Ahmed W Managing in-store logistics: Perspective from Pakistani small and medium retail stores International Journal of Retail and Distribution Management 2019 47 4 350 367 10.1108/IJRDM-03-2018-0045 · DOI
- [39]Isbister K Nass C Consistency of personality in interactive characters: Verbal cues, non-verbal cues, and user characteristics International Journal of Human-Computer Studies 2000 53 2 251 267 10.1006/ijhc.2000.0368 · DOI
- [41]Kim H Suh K Lee U Effects of collaborative online shopping on shopping experience through social and relational perspectives Information and Management 2013 50 4 169 180 10.1016/j.im.2013.02.003 · DOI
- [42]Knijnenburg BP Willemsen MC Inferring capabilities of intelligent agents from their external traits ACM Transactions on Interactive Intelligent Systems 2016 6 4 28 25 10.1145/2963106 · DOI
- [45]Lee J Pi S Kwok R Huynh M The contribution of commitment value in Internet commerce: An empirical investigation Journal of the Association for Information Systems 2003 4 1 2 10.17705/1jais.00029 · DOI
- [46]Lehmann EL The fisher, neyman-pearson theories of testing hypotheses: One theory or two? Journal of the American Statistical Association 1993 88 424 1242 1249 10.1080/01621459.1993.10476404 · DOI
- [47]Lim W Ting D E-shopping: An analysis of the uses and gratifications theory Modern Applied Science 2012 6 5 48 63 10.5539/mas.v6n5p48 · DOI
- [50]MacKinnon DP Fairchild AJ Fritz MS Mediation analysis Annual review of psychology 2007 58 1 593 614 10.1146/annurev.psych.58.110405.085542 PMC2819368 16968208 · DOI · Paper page
- [51]Mathwick C Naresh M Rigdon E Experiential value: Conceptualization, measurement and application in the catalog and internet shopping environment Journal of Retailing 2001 77 1 39 56 10.1016/S0022-4359(00)00045-2 · DOI
- [54]Moe W Buying, searching, or browsing: differentiating between online shoppers using in-store navigational clickstream Journal of Consumer Psychology 2003 13 1–2 29 39 10.1207/153276603768344762 · DOI
- [55]Molla A Licker P E-commerce systems success: An attempt to extend and respecify the Delone and MacLean model of IS success Journal of Electronic Commerce Research 2001 2 4 131 141
- [56]Nass C Fogg B Moon Y Can computers be teammates? International Journal of Human-Computer Studies 1996 45 6 669 678 10.1006/ijhc.1996.0073 · DOI
- [57]Nowak KL Rauh C The influence of the avatar on online perceptions of anthropomorphism, androgyny, credibility, homophily, and attraction Journal of Computer-Mediated Communication 2005 11 1 153 178 10.1111/j.1083-6101.2006.tb00308.x · DOI
- [58]Oliver R Satisfaction: A behavioral perspective on the consumer 1997 Boston, MA. Irwin McGraw-Hill
- [59]Opreana A Vinerean S Analyzing mediators of the customer satisfaction – loyalty relation in internet retailing Expert Journal of Marketing 2014 2 1 1 14
- [60]Osman Z Sentosa I A study of mediating effect of trust on customer satisfaction and customer loyalty relationship in Malaysian rural tourism European Journal of Tourism Research 2013 6 2 192 206 10.54055/ejtr.v6i2.132 · DOI
- [63]Rhim J Kwak M Gong Y Gweon G Application of humanization to survey chatbots: Change in chatbot perception, interaction experience, and survey data quality Computers in Human Behavior 2022 126 107034 10.1016/j.chb.2021.107034 · DOI
- [64]Roy R Naidoo V Enhancing chatbot effectiveness: The role of anthropomorphic conversational styles and time orientation Journal of Business Research 2021 126 23 34 10.1016/j.jbusres.2020.12.051 · DOI
- [65]Sands S Ferraro C Campbell C Tsao H-Y Managing the human–chatbot divide: How service scripts influence service experience Journal of Service Management 2021 32 2 246 264 10.1108/JOSM-06-2019-0203 · DOI
- [66]Saunders M Lewis P Thornhill A Research methods for business students 2007 Pitman Publishing
- [67]Schlosser AE Experiencing products in the virtual world: The role of goal and imagery in influencing attitudes versus purchase intentions Journal of Consumer Research 2003 30 2 98 184 10.1086/376807 · DOI
- [68]Schmitt B Experiential marketing Journal of Marketing Management 1999 15 1/3 53 67 10.1362/026725799784870496 · DOI
- [69]Schuetzler, R. M., Grimes, M., Giboney, J. S., & Buckman, J. (2014). Facilitating natural conversational agent interactions: Lessons from a deception experiment. In Proceedings of the Thirty Fifth International Conference on Information Systems, Auckland, 16, 1-16.
- [74]Suki N Suki N Online buying innovativeness: Effects of perceived value, perceived risk and perceived enjoyment International Journal of Business and Society 2007 8 2 81 93
- [75]Venkatesh V Morris M Davis G Davis F User acceptance of information technology: Toward a unified view MIS Quarterly 2003 27 3 425 478 10.2307/30036540 · DOI · Paper page
- [76]Verhoef PC Lemon KN Parasuraman A Roggeveen A Tsiros M Schlesinger LA Customer experience creation: Determinants, dynamics and management strategies Journal of Retailing 2009 85 1 31 41 10.1016/j.jretai.2008.11.001 · DOI · Paper page
- [77]Wang W Zhao Y Qiu L Zhu Y Effects of emoticons on the acceptance of negative feedback in computer-mediated communication Journal of the Association for Information Systems 2014 15 8 454 483 10.17705/1jais.00370 · DOI
- [78]Wang Y Xu R Schwartz M Ghosh D Chen X COVID-19 and retail grocery management: Insights from a broad-based consumer survey IEEE Engineering Management Review 2020 48 3 202 211 10.1109/EMR.2020.3011054 · DOI
- [80]Weathers D Sharma S Wood SL Effects of online communication practices on consumer perceptions of performance uncertainty for search and experience goods Journal of Retailing 2007 83 4 393 401 10.1016/j.jretai.2007.03.009 · DOI · Paper page
- [81]Yoon D Choi S Sohn D Building customer relationships in an electronic age: The role of interactivity of E-commerce Web sites Psychology and Marketing 2008 25 7 602 608 10.1002/mar.20227 · DOI
- [82]Zarantonello L Pauwels-Delassus V The handbook of brand management scales 2016 Routledge
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- Authors
- Klein, K., & Martinez, L. F.
- Affiliations
- NOVA School of Business and Economics (PT)
- Corresponding author
- Klein, Katharina
- Venue
- Electronic Commerce Research
- Published
- 2022-05-16
- Volume
- 23
- Issue
- 4
- Pages
- 2789-2825
- ISSN
- 1389-5753 (ISSN-L)
- 1572-9362
- PMC
- PMC9108695
- OpenAlex
- W4280622019
- Cited by
- 180
- References
- 12
- Citations by year
- 2026: 47 · 2025: 76 · 2024: 35 · 2023: 20 · 2022: 2
- FWCI
- 10.94
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Licence
- Locations
- Electronic Commerce Research (publishedVersion)
- PubMed Central (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › AI in Service Interactions
- Social Sciences › Psychology › Social Psychology › Social Robot Interaction and HRI
- Social Sciences › Business, Management and Accounting › Organizational Behavior and Human Resource Management › Customer Service Quality and Loyalty
- Keywords
- anthropomorphism, chatbots, customer satisfaction, food e-commerce, food retailers, consumer trust, consumer enjoyment, consumer attitudes, omnichannel strategy, chatbot design
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