Such factors as product trade , factor mobility , knowledge diffusion and technological diffusion make anfractuous relation lie in the system . so region is mutual related , not isolated . the economic growth of one region depends on not only its element devotion , but also growth traces of other regions 但是,区域经济是一个开放的系统,产品贸易、要素流动、知识和技术扩散等因素使得这些系统之间存在着错综复杂的联系,这决定了区域经济体之间不是孤立存在而是相互联系的,一个区域经济的增长不仅依赖于本身基础和要素的投入也依赖于其它的区域增长的轨迹。