两阶段视角下高技术产业技术创新效率研究——基于网络SBM模型和DEA窗口分析
량계단시각하고기술산업기술창신효솔연구——기우망락SBM모형화DEA창구분석
Research on Technological Innovation Efficiency of High-tech Industry from Two-stage Perspective——Based on Network SBM Model and DEA Window Analysis
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