一体化还是差别化——有关区域协调发展的理论解析

企业常选择市场规模较大的区域或区内贸易自由度较高区域作为生产区位,这可提高产业的集中度.产业集中具有溢出效应,因此产业的空间集中提高经济增长率,而区际收入的差距,随资本存量区际差距的扩大而扩大,随经济增长率的提高而缩小.产业集中又导致拥挤效应,此时如果产业的空间集中度低,则经济增长率随产业集中度的提高而提高,但如果产业的空间集中度很高,则经济增长率随产业空间集中度的提高而下降.因此,大范围的产业集中必须要适中.要实现产业活动的适度集中,外围地区必须拥有一定份额的产业活动,这就需要建立适度的差别化政策来约束外围地区的产业进一步向经济发达地区集中.要实现区域经济协调发展,应实行差别化政策而不应实行一体化政策.

Integration or Differentiation——an Interpretation on Regional Coordinated Development

Firms would choose production locations with good market or free trade and thus lead to industrial concentration. The spillover effect of concentration helps economic growth. However, inter-regional income gaps increase with more inter-regional capital stock gap and decrease with higher economic growth. The crowding effect of concentration helps economic growth with less spatial concentration and restrains economic growth with more spatial concentration. Thus, industrial concentration should be optimal, neither too high nor too low. Differentiated not integrated policy should be taken to achieve regional coordinated development.