| Abstract: |
How can we design a market of human-generated content for use in training AI
models that both enables technological progress and preserves individual
incentives for high-quality content creation? Existing approaches take polar
positions: a "free-for-all" model based on fair use and a "strong intellectual
property rights" model. We show that both fail: Free-for-all does not
compensate creators, and -- by modeling as a static Stackelberg game -- strong
intellectual property rights also underpower creative incentives. We find this
especially true for more innovative creators, a phenomenon we term the
"originality penalty." Extending this insight to a dynamic model, we find
another market failure undermining AI model performance, even for an initially
good model: Such a model induces greater reliance by humans on AI-assisted
creation, resulting in homogenized content feeding back into training, which
degrades the model performance -- a "curse of precision." We further propose a
market design with a data intermediary internalizing cross-creator
externalities and subsidizing innovative contributions, thereby restoring
efficiency. |