Abstract：The paper focused on enterprises’ horizontal integration from the perspective of institution status by adopting the multiple case studies. By analyzing and comparing the institution status and the horizontal integration management model of three case enterprises, the final result come out. The result revealed that the segmentation of Chinese market challenges consistency of the management model of the enterprises’ branches. The institution status has a regulatory role in this challenge relation. Besides, by affecting the bargaining power of the branches and abilities of the branches to build the specific advantage, enterprise institution status affects the braches’ management autonomy. The degree of branches’ management model consistency and management autonomy has the regular difference with the difference of enterprises’ institution status.
2013, Vol. 10 
