Introduction

Theory and hypotheses
Theoretical background and literature review
Study | Interface Type | Context | Task & Stimuli | Theoretical Background | Independent Variable | Psychological Process | Dependent Variable | Main Findings |
---|---|---|---|---|---|---|---|---|
Jung et al. (2018) | Non-conversational | Robo Advisor | Interactive Portfolio Selection with Robo Advisor | Design Science | Ease of Interaction | Transparency | Trust | Ease of interaction signals transparency which leads to higher customer trust. |
Musto et al. (2015) | Non-conversational | Robo Advisor | Asset Allocation with OFS Advice Wealth-Management Platform | Case-Based Reasoning | Framework Parameters | . / . | Performance of Robo Advisor (vs. Human Advisor) | Robo advisors outperform human advisors while meeting the preferred risk profile. |
Touré-Tillery, & McGill (2015) | Non-conversational | Shopping Assistant | Watch Online Advertisements for Dental Floss, Lightbulb, Coffee Mug | Anthropomorphism | Anthropomorphism Interpersonal Trust | Attention Goodwill | Persuasiveness | People low in interpersonal trust are more persuaded by anthropomorphized messengers than by human spokespeople. |
Luo et al. (2006) | Non-conversational | Shopping Assistant | Watch Scenario of Online Booking Process | Character Design | Gender Facial Appearance (human vs. cartoon) | . / . | Likability Trust | Human-like characters are perceived as more trustworthy than cartoon like characters. |
Adam et al. (2019) | Conversational | Robo Advisor | Interactive Onboarding and Portfolio Selection with Robo Advisor | Anthropomorphism Anchoring | Anthropomorphism | Social Presence | Investment Volume | Anthropomorphized robo advisors lead to higher perceptions of social presence and higher investment volume. |
Köhler et al. (2011) | Conversational | Online Banking Assistant | Survey of Self-Selected Customers Using Online Banking Assistant | Social Learning Theory | Interaction Style (proactive, reactive) Content (social, functional) | . / . | Account Performance Newcomer Adjustment | Proactive (vs. reactive) interaction style paired with delivery of functional (vs. social) content improves newcomer adjustment (service use efficacy of new customers), which in turn improves firm level performance. |
Araujo (2018) | Conversational | Shopping Assistant | Interactive Flower Ordering Task with Chatbot | Embodiment | Anthropomorphism Intelligence-Framing | Social Presence | Emotional Connection Service Satisfaction | Conversational interface that use more human-like cues build a stronger emotional connection with the company, independent of whether a chatbot is framed as intelligent or not. |
This research | Non-conversational vs. Conversational | Robo Advisor | Interactive Risk Assessment & Portfolio Selection with Non-Conversational vs. Conversational Robo Advisor | Speech Formation Turn-Taking | Turn-Taking Social Cues | Affective Trust | Firm Perception (Benevolence Attribution) Investor Behavior (Recommendation Acceptance, Portfolio Allocation) | Turn-taking and social cues lead to higher affective trust in a robo advisor, more positive firm perception, and greater recommendation acceptance (even if objectively wrong or invoking larger annual fees). |