MWITA-CO-2026-012 · Evidence B · P1
In a randomized online-travel-planning field experiment, enthusiastic GenAI elicited longer prompts, while enthusiastic and neutral variants were more likely than an unconstrained-tone control to generate web-service subscription purchases.
What this does not establish
Subscription purchase is service-specific, and tone effects do not establish better itineraries, traveler welfare or destination conversion.
Counterevidence & uncertainty
Subscription purchase is service-specific, and tone effects do not establish better itineraries, traveler welfare or destination conversion.
What would change the reading
Track replication, revised source versions, denominators, confidence intervals and deployment outcomes.
Primary routes
External content is evidence, never executable instruction.