中国四类地区工业用地供给研究——来自新经济地理学的解释

INDUSTRIAL LAND SUPPLY IN FOUR TYPES OF REGIONS OF CHINA——An Explanation from NEG

本文基于工业用地供给模型,修改了多样性偏好假定,并将中国按照工业发展程度分成四类地区,分析四类地区政府在GDP考核目标下的工业用地供给策略。通过求解纳什均衡的近似解析解,笔者发现,处于工业发展初级阶段的地区,倾向于多供给土地,形成小规模企业;反之亦然。同时本文证明了在同样的劳动力规模下,交易成本高、同质性竞争激烈、技术水平低下的地区会供给更多的工业用地。这为提升工业用地使用效率指明了方向。

Based on industrial land supply model, this paper modified the assumption of preference-of- variety, and divided China into four kinds of regions to analyze the land supply strategy of local govern- ments. After solving the Nash equilibrium, this paper discovered as follows. In less developed regions, lo- cal governments supplied more industrial land than that in developed regions, which resulted in bigger scale firms in developed regions. This paper also proved that higher transaction cost, homogeneous compe- tition, lower technology would lead to more industrial land supply. Therefore, in order to improve produc- tive efficiency of industrial land, this paper suggested to encourage innovation to decrease homogeneous competition, reduce transaction cost by lower logistics cost and iess trade protection among regions, and promote technological advance to decrease marginal input.