中文摘要：

技术进步是企业纵向边界的重要影响因素。以交易成本、资产专用性、不确定性和企业能力理论为基础,讨论了技术进步影响企业纵向边界的理论机制,并利用中国工业企业2002-2007年的面板数据进行了实证检验。结果表明：技术进步对企业纵向边界具有显著的负效应,技术进步速度越快,企业越倾向于专业化生产从而缩小纵向边界;同时,较分散的市场结构促使企业采取一体化战略,资产负债率对纵向边界存在负效应,而产权结构和信息化水平对企业纵向边界的影响并不显著。

英文摘要：

Technical progress is an important factor for vertical boundaries of firms.Based on the theories of transaction cost,asset specificity,uncertainty and firm capabilities,this article discusses the theoretical mechanism of the influences on vertical boundaries from technical progress.Panel data constituted by time-series from 2002 to 2007 and cross-section data from industrial enterprises in our country has been used for empirical testing.The conclusion is drawn that there are very significant negative effect on vertical boundaries of firms from technical progress.The faster the technical progress,more inclinations for enterprises to specilize and decrease the vertical boundaries.Meanwhile,the scatterd market construction leads to the vertical integration.Liabilities of assets Ratio exerts negative effect to vertical boundaries.Property structure and informationization level have non-significant effect on vertical boundaries.