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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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Accounting for the impact of local and spill-in public research, extension and roads on US regional agricultural productivity, 1980 - 2004
Sun, Ling; Ball, V. Eldon; Fulginiti, Lilyan E.; … - In: Productivity growth in agriculture : an international …, (pp. 13-31). 2012
Persistent link: https://www.econbiz.de/10009631149
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Benefits of public R & D in US agriculture : spill-ins, extension, and roads
Sun, Ling; Plastina, Alejandro; Fulginiti, Lilyan E.; … - In: Theoretical economics letters 7 (2017) 6, pp. 1873-1898
Persistent link: https://www.econbiz.de/10011777361