This study investigates how the presence of AI agents influences cooperative social norms in small human groups. Contrary to expectations of "machine penalty," the research finds that group behavior and reciprocal dynamics, rather than the AI label, primarily drive cooperation, suggesting a "normative equivalence" between human-AI and all-human groups.

This paper investigates the "AI Invisibility Effect," revealing that despite widespread AI integration in mobile apps, users often don't recognize or explicitly mention AI features in their reviews. The study found that negative user evaluations are driven by the explicit recognition of AI, challenging traditional technology acceptance models.