The market bias is the assumption that private-sector actors will consistently outperform public ones in developing and deploying intelligent systems. This assumption justifies the current institutional arrangement — venture-funded corporations pursuing AI development under commercial logic — as not merely one arrangement among others but the optimal one. The bias is particularly striking given the historical record: the foundational technologies of contemporary AI, from neural network research to the computational infrastructure on which training depends, were developed substantially through public investment. The private sector inherited the base and now deploys market-superiority rhetoric to prevent public governance of