China's Regional Innovation Efficiency and Its Influencing Factors Considering the Lag Effect

This paper analyzes China's innovation efficiency and its influencing factors by a three-stage DEA model based on the data with lag relationship.Three conclusions were drawn as follow.First,China's overall level of innovation efficiency is not high,and it is highly correlated with the level of economic development.The distribution is highly concentrated in the same economic region in addition to the regional imbalance.Second,although the provincial allocation efficiency of innovation resource is better,China's innovation efficiency is still low because of inadequate investment.It can improve the innovation efficiency by increasing investment.Last,the input of technological resources greatly influences to the innovation efficiency.The evidence,which the technology overflow caused by FDI can improve the innovation efficiency,is no longer obvious.