| 基于三次成本函数和时空相依的城市土地供应经济性评价——以282 个地级及以上城市为例 |
| |
| 引用本文： | 汪冲.基于三次成本函数和时空相依的城市土地供应经济性评价——以282 个地级及以上城市为例[J].资源科学,2012,34(1):128-135. |
| |
| 作者姓名： | 汪冲 |
| |
| 作者单位： | 南京财经大学财政与税务学院, 南京 210046 |
| |
| 基金项目： | 江苏高校优势学科建设工程项目(编号:PAPD);教育部人文社会科学青年基金项目(编号:09YJC790137);南京财经大学科研基金项目(编号:C0806、A2010001)。 |
| |
| 摘 要： | 城市土地供应的经济性不仅是土地一级供应的核心问题,也是至关重要的土地供需影响因素和土地市场要素,直接决定了土地市场调控的成效。基于三次多项式成本函数建立计量模型,并使用考虑了土地供给、需求和价格影响因素存在时间、空间相关性的实证计量方法和经济性评价指标,得出2003年-2008年我国282个地级及以上城市中90%存在土地供应规模过低而产生的不经济现象,而少数大型城市又存在明显的规模报酬递减,并且,协议供应的规模经济性程度相对高于“招挂拍”供应,二者都表现出了“先上升再下降”的非单调变化趋势,其最优规模区间分别处于95%～99%分位和中位～80%分位,同时,城市土地供应仍然存在较为明显的范围不经济现象。研究结果表明我国城市土地集约化供应具有极大潜力,应着力探索集约供应新机制。
|
| 关 键 词： | 土地供应 三次成本函数 空间计量 规模经济性 范围经济性 |
| 收稿时间： | 5/3/2011 12:00:00 AM |
Economic Evaluation of Urban Land Granting Based on a Cubic Cost Function and Time-Space Dependence: An Example of 282 Prefecture-level or Other Large-and-medium-sized Cities |
| |
| WANG Chong.Economic Evaluation of Urban Land Granting Based on a Cubic Cost Function and Time-Space Dependence: An Example of 282 Prefecture-level or Other Large-and-medium-sized Cities[J].Resources Science,2012,34(1):128-135. |
| |
| Authors: | WANG Chong |
| |
| Institution: | (Nanjing University of Finance and Economics, Nanjing 210046, China |
| |
| Abstract: | Economies of urban land supply are not only the core issue of land primary supply but also a crucial factor of supply and demand elements of the land market, which directly determines the effectiveness of land market regulation. Based on a cubic cost function and the two-step system GMM estimation methods of dynamic panel data (DPD), this study used a spatial matrix weighted item and its time-lag value as instrumental variables, and developed a spatial econometric model on the basis of the cubic cost function. Economies of urban land supply granting in China were evaluated using indicators of economies of scale and scope. There were 282 prefecture-level or other large-and-medium-sized cities in China during the period 2003 to 2008 involved. Statistical data were from Statistical Yearbook of Land and Resources of China and China City Statistical Yearbook. It was found that the economies of scale of aggregated land supply granting show a trend of monotonous decrease. The best performance was Dalian City which was located in 90% fractile of 282 cities. The marginal cost and average cost levels in Dalian were 607.56 and 605.5 million Yuan/hm2, and its index value of economies of scale was 0.99 which was very close to the minimum optimal scale (MOC) levels of efficiency. From the perspective of economies of scale, it had more obvious polarization among cities. About 90% of the urban land supply was uneconomical, which was a result of extremely low scale. For a small number of large cities, there were obvious large-scale diseconomies. For example, the economies of scale index value of largest size of the supplier Tianjin in 2008 were only 0.41, while the economies of scale index value of supply granting through bidding, auction and listing (BAL) and through agreement were 0.61 and 0.23, respectively. It was also found that the supply granting through agreement had a relatively high degree of economies of scale than that of supply granting through BAL. Granting through agreement and BAL showed a non-monotonic trend of increasing first and then decreasing, but the degree of economies of scale in granting through BAL was weaker than that of the granting through agreement. The optimal size for granting through agreement and BAL ranged between 95% and 99% fractile and between median and the 80% fractile, respectively. The land supply structure comprising mainly two types of the granting through agreement and BAL still existed in a more obvious uneconomic phenomenon, even though the level of scope diseconomies decreased rapidly with the expansion of the land supply size. Results show that the supply of urban land had great potential for intensification. Mechanisms for intensive land supply should be further studied. |
| |
| Keywords: | State-owned land granting Cubic cost functions Spatial econometric Economies of scale Economies of scope |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《资源科学》浏览原始摘要信息 |
| 点击此处可从《资源科学》下载免费的PDF全文 |
|
