中文摘要：

在当今知识信息时代，知识的生产、累积、扩散、应用与增殖的动态竞争能力已经逐渐取代了传统的土地、资本与劳动力等要素形成的竞争力。知识溢出已经成为影响区域经济发展的一项至关重要的因素。以中国北方起到经济支柱地位的京津冀区域作为研究对象，引入可测度知识和不可测度知识作为自变量，基于生产函数构建了空间Durbin计量模型，使用Maflab7．0软件对模型进行回归，求出参数估计值，进而测度出一、二阶邻接矩阵下京津冀地区知识存量的总效应、直接效应和间接效应。用同样的方法测度出京津冀地区地级及以上城市知识溢出效应。测度结果表明京津冀地区知识溢出具有一阶正效应以及二阶弱负效应，且高于全国平均水平，其中北京、天津两大直辖市正效应显著，并远高于河北八市。分析测度结果，发现阻碍知识溢出的原因主要是政府职能不能有效发挥、行政区划与经济区域存在差异、产业同构、产业链断裂并存及知识产权保护未完全到位等，从而提出促进京津专利成果转化、加强河北知识吸收能力、促进区域联动、大力引进外商投资、避免过度知识溢出的负效应产生等相关建议。

英文摘要：

In today＇s information era, dynamic competitiveness of knowledge in respect of its production, accumulation and diffusion, application and proliferation abilities has gradually replaced that of traditional land, capital and labor ele- ments. Knowledge spillover has become a vital factor in the development of regional economy. This study chose the Beijing- Tianjin-Hebei region which plays a significant role in north China as the research object, using measured knowledge and unmeasured knowledge as independent variables, built a Durbin space econometric model based on the production function. Using Matlab7. 0 software to regression model and parameter estimation, it measured the knowledge stock of the region＇s total effect, direct effects and indirect effects under the first and two order adjacency matrix including indirect effects. With the same method, it measured out the knowledge spillover effect in the region for cities above prefecture level. Measure- ment results show that knowledge spillover has a positive effect in Beijing-Tianjin-Hebei region, and higher than the na- tional average level. Beijing and Tianjin, two municipalities directly under the central government, have a significant posi- tive effect, and far more than eight cities in Hebei province. Analysis measure results indicate that the cause of the obstacles to knowledge spillover mainly include the unfavorable practice of governments＇ functions, differences between administra- tive division and regional economy, industrial isomorphism, industrial chain rupture and the lagging-behind protection of intellectual property rights, etc. Therefore, this paper proposes a series of suggestions, including promoting the transfor- mation of Beijing and Tianjin patent achievements and strengthening the knowledge absorptive capacity of Hebei, promoting regional linkage, attracting more foreign investments and avoiding negative effects caused by excessive knowl- edge spillovers.