This Article provides the first legal examination of the immensely valuable but underappreciated phenomenon of social innovation. Innovations such as cognitive behavioral therapy, microfinance, and strategies to reduce hospital-based infections greatly enhance social welfare yet operate completely outside of the patent system, the primary legal mechanism for promoting innovation. This Article draws on empirical studies to elucidate this significant kind of innovation and explore its divergence from the classic model…

The standard theory of copyright law imagines a marketplace efficiently serving up new works to an undifferentiated world of consumers. Yet the reality is that all consumers are not equal. Class and culture combine to explain who wins, and who loses, from copyright protection. Along the dimension of class, the inequality insight reminds us just because new works are created does not mean that most people can afford them, and…