标题：Global copyright protection and the challenge of digital piracy; The measurement and effects of nontariff barriers to trade in basic telecommunication services
摘要：Copyright industries are among the fastest growing in the world and are particularly important to the
U.S. economy because the performance of these industries is characterized by above-average growth in output
and employment and higher-than-average wages and salaries. According to a study completed in 2002, the
value of output accounted for by U.S. copyright-based industries, including those producing computer
software, printed materials, movies, home videos, compact discs (CDs), audiocassettes, and other media
products, rose during 1977-2001, at an average annual growth rate of 7 percent, compared with 3 percent for
the remainder of the U.S. economy.2 In 2002, those industries accounted for $535.1 billion in value added,
or more than 5 percent of GDP. Meanwhile, domestic employment in copyright-based industries more than
doubled between 1977 and 2001, to 4.7 million workers, representing an average annual growth rate of 5
percent, or almost 3 times the rate of growth of the U.S. economy as a whole.
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