山西上市公司技术创新效率与中部和周边省份的研究——基于超效率DEA和Malmquist指数模型
산서상시공사기술창신효솔여중부화주변성빈적연구——기우초효솔DEA화Malmquist지수모형
A Study on the Listed Companies' Efficiency of Technological Innovation Between Shanxi and Other Central and Peripheral Provinces——Based on Super-Efficiency DEA and Malmquist index
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