Based on the concerned theories, the definition of enterprise can be made, that is, enterprise can be defined as "a system arrangement formed by the elements owner who goes on the division of labor and cooperation for the gaining of organized loan".

After analyzing the necessity of the separation and coordination of knowledge,this article studies the virtual corporation from this angle deeply and expounds that the structure of the virtual corporation is beneficial to separation and coordination of the knowledge.

On the consideration of farming periods, rural men and women workforces in Jiangnan demonstrate a mode of seasonal division and cooperation in modern times.

Integrating the city division and cooperation of regional economy,which has been one of the important strategies to rely international competition since China embracing the world economy,and city agglomeration rising abruptly is a trend to harmonize regional development currently.

The Industry Collaboration and Regional Integration in the Valley along the Yangtze River in Anhui Province;