In the past few years, YouTube and other sites for sharing video files over the Internet have vaulted from obscurity to places of centrality in the media landscape. The files available at YouTube include a mix of user-generated video and clips from network television shows. Networks fear that...

Intellectual property piracy is widely believed, by authorities in both US industry and government, to be rampant in China. Because we lack evidence on the rate at which unpaid consumption displaces paid consumption, we know little about the size of the effect of pirate consumption on the volume...

A growing empirical literature examines the relationship between music file sharing and legal purchases of music, but existing studies examine the period before consumers had attractive legal digital a la carte options. The iTunes Music Store has grown quickly since its appearance in 2003, and...