张立球同志来稿认为:区域分工是社会劳动的划分和独立化在区域上的表现或空间上的存在形式。其产生的直接原因是:商业从外区购进比在本区生产更加便宜,即价格的区域差。而外区的商品在本区的销售价格又包括两个组成部分,即其在外区的价格加上流通费用。因此,区域分工的前提条件是流通费用必 Comrade Zhang Liqiu argues that regional division of labor is the division of social labor and the manifestation or spatial existence of independence in the region. The direct cause of this is that the commercial purchases from the outer areas are poorer than the prices in the areas where the production is cheaper in this area. While the sales prices of the goods of the outer districts in this area include two components, namely, their prices in the outer areas plus the circulation expenses. Therefore, the prerequisite for the division of labor in the region is the circulation costs must be