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| 2013, Vol. 1(3): 36-40 DOI: | ||
| The Yield-increasing Effect as a result of Direct Grain Subsidies ——Based on the Panel data of Henan | ||
| LIU Qi,LIU Pei-pei | ||
| School of Economics and Management,Henan Agricultural University,Zhengzhou 450002,China | ||
| Received 2011-09-04 Revised 2013-05-06 | ||
| Supporting info | ||
| null | ||
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