基于DEA模型的城市用地经济效益比较研究

运用数据包络分析方法（DEA），从城市土地的投入和产出角度，对全国30个省会城市的城市用地经济效益进行比较研究。研究结果表明：（1）在全国30个城市（包括直辖市和部分省会城市），仅上海、杭州、广州和昆明等4个城市为DEA有效城市，即在现有的经济、社会、技术条件下，投入产出达到最佳状态，其余26个城市为非DEA有效城市；（2）南京和哈尔滨处于规模效益递减的发展阶段，上海、杭州、广州和昆明处于规模效益不变的发展阶段，其余24个城市都处于规模效益递增的发展阶段；（3）30个省会城市的城市土地利用经济效益发展极不平衡，呈现东高西低的格局，且城市土地利用普遍不集约；最后对如何提高城市用地经济效益提出了相应的改进措施。

COMPARATIVE STUDY ON URBAN LAND USE ECONOMIC BENEFIT BASED ON DEA

By using Data Envelopment Analysis(DEA),a comparative research on urban land use benefit in 30 provincial capitals was carried out,from the aspects of urban land's inputs and outputs.The results are as follows:(1)Among 30 provincial capitals,Shanghai,Hangzhou,Guangzhou and Kunming are DEA efficient,but the rest are not;(2)While Nanjing and Harbin are in the development stage of decreasing scale merit,Shanghai,Hangzhou,Guangzhou and Kunming are in the development stage of invariable scale merit,the rest are in the development stage of increasing return to scale;(3)Benefit of land use is different in different provincial capitals,and increases from the west to the east.Besides,non intensive land utilization exists at large.Finally,several effective measures for enhancing the benefit of urban land use are put forward.