关键词: 绿色技术创新效率 , 碳排放 , 技术差距 , 影响因素 , 共同前沿理论

Abstract: By introducing the index of the industrial “three wastes” and carbon dioxide，this paper studies the theory of metafrontier and DEA model and analyzes the provincial enterprises green R&D achievement conversion efficiency and the technology gap between regions from 2003 to 2010This paper decomposes provincial innovation inefficiency and examines the two stages of efficiency affecting factorsThe results show as follows：(1) During the period，Chinese enterprises two stages of efficiency both are low with decline trends due to the decreasing of pure technology efficiencyGreen efficiency is lower than the traditional efficiency，the two provincial ranks of efficiency show strong correlation，which indicates that low economic efficiency province still falls in the technological environment effect transformation(2)There are significant differences in all provinces and major regionsTGR value shows that the eastern innovation technology level is the highest in the two stages，there is a risk that the gap may continue to be expandedThe two stages inefficiency in most eastern mainly comes from the low management level，but the inefficiency in middle and western areas mainly subjects to the backward regional production technology and enterprise management(3) The proportion of stateowned economy，foreign investment and technology trading environment enhancing have significant positive influence on improving the R&D efficiency，but enterprise scale has negative influenceTechnology trading environment is helpful to improving the S&T achievement conversion efficiency，but the enterprise scale and the proportion of stateowned economy have a negative impact

Key words: green technology innovation efficiency , carbon emission , technology gap , affecting factor , metafrontier theory