国际知识产权联盟（IIPA）：2018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 2018 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 U.S. gross domestic product (“GDP”); real growth which outpaces the rest of the economy; an increasing number of high-paying jobs; and substantial foreign sales and exports, surpassing many industry sectors.