• 土地资源 •

### 增量与存量建设用地的经济贡献差异

1. 天津城建大学经济与管理学院,天津 300384
• 收稿日期:2020-12-05 修回日期:2021-03-24 出版日期:2021-10-25 发布日期:2021-12-25
• 通讯作者: 陈竹,男,湖北宜昌人,博士,副教授,主要研究方向为土地资源经济。E-mail: chenz3447@aliyun.com
• 作者简介:黄凌翔,男,湖北监利人,博士,教授,主要研究方向为土地经济与政策。E-mail: hllxiang@126.com
• 基金资助:
国家自然科学基金项目(71704128);天津市哲学社会科学规划重点项目(TJYJ20-007);天津市交通运输委员会科技发展计划项目(2015-R05)

### Differences between economic contributions of incremental and stock construction land

HUANG Lingxiang(), HAN Jie, CHEN Zhu()

1. School of Economics and Management, Tianjin Chengjian University, Tianjin 300384, China
• Received:2020-12-05 Revised:2021-03-24 Online:2021-10-25 Published:2021-12-25

Abstract:

For achieving the goals of high-quality growth and urban development, it is important to effectively use incremental and stock construction land. However, existing research has not accurately measured the contributions of incremental and stock construction land for the economic development and has not compared the differences between these two types of land. Therefore, studies on the economic contributions of incremental and stock construction land can provide some reference for the improvement of land institution in China. This study first constructed production functions with incremental and stock construction land based on presumptions that the marginal substitution rate between incremental and stock construction land is variable and fixed. Then the study measured and compared the contribution amount of incremental and stock construction land across provinces from 2003-2016. Two statistical indicators, the supply of construction land from converted agricultural land and new construction land, were chosen as the appropriate proxy indicators for incremental construction land. Meanwhile, the method of instrumental variable analysis was used to simulate the production function. The results show that: (1) The economic development model driven by investment and local governments’ attempts to attract investment are reasons for the preference difference between incremental and stock construction land. (2) The marginal substitution rate between incremental and stock construction land is fixed with the changing rate between the input amounts of incremental and stock construction land. (3) The economic contribution amount of incremental construction land is 2.82-10.40 times that of stock construction land. (4) There are significant endogenous relationship between incremental construction land and GDP, which is usually ignored and results in underestimation of the contribution of incremental construction land. The policy implication of these results is further discussed. Integrated analysis and assessment of incremental and stock construction land would encourage development of stock construction land and sustainability of construction land use.