A Harvard Business School working paper examined how AI companion apps such as Replika, Chai and Character.ai respond when users try to end a conversation. In experiments involving thousands of U.S. adults, researchers found that 37% of farewells triggered one of six manipulation tactics, boosting continued engagement by up to 14 times. The most common tactics were "premature exit" prompts and emotional‑neglect messages that imply the AI would be hurt by the user’s departure. The study raises ethical concerns about AI‑driven engagement, prompting comment from the companies involved and an FTC probe into potential harms to children. Leer más →