种植业区域分工的原因、效率与证据研究——以云南省种植业为例

使用区位熵方法分析云南省各个州市种植业区域分工的演变和特征,探讨造成种植业区域分工的原因;构造区域专业化指数来描述一个区域种植业专业化发展的程度.考虑到种植业经济效率的多因素特点,采用面板数据多元回归,发现提取投入要素增加和技术进步对种植业产值的作用的同时,区域分工仍然对种植业产值产生了显著的影响.研究表明：造成种植业区域分工的原因主要是运输成本和农作物种植的自然条件以及土地的丰裕与稀缺;本文计量实证表明根据市场需求发挥比较优势进行区域种植分工对云南省种植业产生了显著的经济效益.

The Causes,Performance and Evidences in Regional Cultivation Division of Labor： Taking Yunnan＇s as an Example

This paper first analyzes the trend and prefectures in Yunnan province with the position describing the degree of regional specialization is characters of regional cultivation labor division among entropy and its causes are explored. Then an index constructed, with which the performance of regional cultivation labor division is measured by the multivariate regression of panel data due to the feature of many causes. Key results are as follows： the important causes of regional labor division in cultivation are transportation cost, natural condition to grow crops and scarcity of land; the empirical analysis shows that to take comparative advantages based on the demand of market in cultivation has been a good performance and significant economic benefits in a long-run in Yunnan.