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Convergence in US productivity growth for agriculture : implications of interstate research spillovers for funding agricultural research
MacCunn, Alan, (2000)
Theory and econometric analysis of state government demand for public agricultural research
Khanna, Jyoti, (1990)
Agricultural Productivity Act of 1983 [nineteen hundred and eighty-three] : hearing before the Subcommitee on Agricultural Research and General Legislation of the Committee on Agriculture, Nutrition, and Forestry, United States Senate, 98th Congress, 2nd session on S. 1128 ...
(1984)
Multidimensional output indices
Craig, Barbara J., (1990)
Patterns of agricultural development in the United States
International productivity patterns : accounting for input quality, infrastructure, and research
Craig, Barbara J., (1997)