国际知识产权联盟（IIPA）：2014年美国版权产业经济贡献研究报告（英文版）

Copyright Industries in the U.S. Economy: The 2014 Report demonstrates that the core copyright industries of the United States – those industries whose primary purpose is to create, produce, distribute or exhibit copyright materials – provide significant value added to GDP; an increasing number of high-paying jobs; real growth which outpaces the rest of the economy; and substantial foreign sales and exports, surpassing many industry sectors. Copyright Industries Contribute Significantly to U.