Chris Tribbey summarized a report by the NRC in HOME MEDIA:
“Although copyright law and other remedies under the [Digital Millennium Copyright Act] remain an effective tool against infringing services located in the United States, most, if not all illegal services have moved off shore to territories that lack effective enforcement mechanisms making it nearly impossible to slow the proliferation of infringing download and streaming services,”
Michael O’Leary, senior EVP for global policy and external affairs for the Motion Picture Association of America, noted that recent research showed that the shutdown of overseas file-sharing platforms and ad-supported cyberlockers has had a direct, positive impact on home entertainment sales in the United States.
full article here
link to full NRC e-report here