![](https://lstatic.shangxueba.com/jiandati/h5/images/m_q_title.png)
A. 厂商具有雄厚的资金实力
B. 配备更加先进的机器设备
C. 实行科学的管理制度
D. 获得低价优质的原料、吸纳优秀人才
E. 提高副产品的综合利用效率
A. 国家活动范围的扩大
B. 市场主体关系的复杂化要求相关的司法.行政制度
C. 城市化的发展和人口密度的增加
D. 战争使财政支出大幅度提升
It is fairly common for an industrial cluster to break up and for production to move to locations with lower wages when the technology of the industry is no longer rapidly improving--when it is no longer essential to have the absolutely most modern machinery, when the need for highly skilled workers has declined, and when being at the cutting edge of innovation conveys only a small advantage. Explain this tendency of industrial clusters to break up in terms of the theory of external economies.
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