Fanworks, as creative endeavors existing outside the money economy, are fundamentally based on the inexhaustibility of the imagination. Yet the creative desires fanworks express and satisfy are not alien to other, marketized creative works. Indeed, creators’ passions are strikingly similar across the boundary between “original”/authorized and unauthorized derivative works. That similarity has lessons for copyright’s incentivizing ambitions, as well as for a broader cultural policy that strives to allow people to express themselves creatively.
[QUOTE] From Rebecca Tushnet, Economies of Desire: Fair Use and Marketplace Assumptions