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| 我国54个城市的创新效率比较研究:基于包含非期望产出的SBM-NDEA模型 | |
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A Comparison of Innovation Efficiencies of 54 Cities in China: A SBM-NDEA Model Based Approach Including Undesirable Output |
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| 本文献已被 万方数据 等数据库收录！ | |
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