Industrial growth and productivity : hearings before the Subcommittee on Industrial Growth and Productivity of the Committee on the Budget, United States Senate, Ninety-seventh Congress, first session, December 3 and 5 1980--trends and prospects in the U.S. economy, January 26, 1981--science and technology policy and the electronics industry, January 27, 1981--impact of federal policies to aid problem industries, January 28, 1981--international trade and its impact on our economy.