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Contributions of public and private science and technology to US agricultural productivity
Huffman, Wallace E. - In: American journal of agricultural economics 74 (1992) 3, pp. 751-756
Persistent link: https://www.econbiz.de/10001130555
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Convergence in US productivity growth for agriculture : implications of interstate research spillovers for funding agricultural research
MacCunn, Alan; Huffman, Wallace E. - In: American journal of agricultural economics 82 (2000) 2, pp. 370-388
Persistent link: https://www.econbiz.de/10001482291
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Public R&D, private R&D and US agricultural productivity growth : dynamic and long-run relationships
Sun, Ling; Heisey, Paul W.; Huffman, Wallace E.; … - In: American journal of agricultural economics 95 (2013) 5, pp. 1287-1293
Persistent link: https://www.econbiz.de/10010204119
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Do formula or competitive grant funds have greater impacts on state agricultural productivity?
Huffman, Wallace E.; Evenson, Robert E. - In: American journal of agricultural economics 88 (2006) 4, pp. 783-798
Persistent link: https://www.econbiz.de/10003389686