Incentivizing Authentic Human Effort In The Generative Ai Era: A Mechanism Design Approach

The rapid adoption of Generative AI (GenAI) has transformed user-generated content into a critical strategic asset for platforms.However, platforms face a dual threat: synthetic content pollution caused by high-volume AI-generated content (AIGC) and the consequent crowding-out of authentic humangenerated content (HGC).This paper proposes a mechanism design framework to address these challenges under conditions of imperfect AIGC detection.We analyze the platform's strategic trade-off between shor