(Originally published in Locus Magazine, July 2006)
idk if i agree with the premise in the title (he doesn't have stats on it, just seems like an anecdotal observation). he talks about releasing his books online & how that drives sales ("An SF writer's biggest problem is obscurity, not piracy"), and how the internet allows authors to have conversations with their readers
Doctorow, C. (2008). Science Fiction is the Only Literature People Care Enough About to Steal on the Internet. In Doctorow, C. Content: Selected Essays on Technology, Creativity, Copyright, and the Future of the Future. Tachyon Publications, pp. 74-77