Copyright law, as conventionally understood, serves the public interest by regulating the production and dissemination of works of authorship, though it recognizes that the requirements of the public interest are in tension. Incentives for creation must be provided, but protections granted authors must not prevent the fruits of creativity and knowledge from spreading. Copyright law, therefore, should balance the needs of creators and users--or so the theory goes.

Challenging this widely accepted view, What's Wrong with Copying? disentangles copyright theory from its focus on...