利用同时体现增加意愿产出、减少非意愿产出和减少投入的基于松弛的序列方向距离函数,评价黄河三角洲高效生态经济区的工业增长绩效。实证结果显示:黄河三角洲山东地区的无效率水平逐年提高,随着政策落实,效率水平持续降低但有所趋缓;生产力呈“进步—退步—退步趋势减缓”的变动态势,其衰退主要源于效率恶化,技术进步虽有一定成效但难以弥补效率恶化;效率生产力水平具有显著的区域差异,烟台和东营两地各项的指标相对良好,其他地区的差异程度各异。 To evaluate the industrial growth performance of the efficient eco-economic zone in the Yellow River Delta using a relaxation-based directional distance function that simultaneously increases the output of willingness, reduces unwilling outputs and reduces inputs. The empirical results show that the inefficiency of Shandong Province in the Yellow River Delta increases year by year. With the implementation of the policy, the efficiency level has continued to decrease but has slowed down. The productivity has shown a change trend of “progress-retreat-retrogressive slowdown” However, due to the deterioration of efficiency and technological progress, it is difficult to make up for the deterioration of efficiency. The productivity of productivity has significant regional differences. The indicators of Yantai and Dongying are relatively good and the degrees of difference in other regions are different.