http://www.ipi.org/ipi/IPIPublicati...okupFullText/5C2EE3D2107A4C228625733E0053A1F4
“Piracy” of recorded music costs the U.S. sound recording industries billions of dollars in lost revenue and profits. These losses, however, represent only a fraction of the impact of recorded music piracy on the U.S. economy as a whole. Combining the latest data on worldwide piracy of recorded music with multipliers from a well established U.S. government model, this study concludes that recorded music piracy costs American workers significant losses in jobs and earnings, and governments substantial lost tax revenue.