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總筆數:3
| 篇名 | 作者 | 刊名 | 出版年 | 查看 |
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| Short and long-run returns to agricultural R&D in South Africa, or will thereal rate of return please stand up? |
Schimmelpfennig, D.;Thirtle, C.;van Zyl, J.;Arnade, C.;Khatri, Y.; |
Agricultural Economics |
2000-06-01 |
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| Attribution and other problems in assessing the returns to agricultural R&D |
Alston, J.M.;Pardey, P.G.; |
Agricultural Economics |
2001-09-01 |
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| Publicly-funded UK agricultural R&D and 'social' total factor productivity |
Barnes, A.P.; |
Agricultural Economics |
2002-05-01 |
查看 |
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