FDI技术追寻、市场导向与工业绿色创新效率——基于贝叶斯修正空间杜宾模型

针对外商直接投资具有独特动机的鲜明特征,通过利用2006—2016年中国29个省份的面板数据,从空间维度探究了技术追寻型FDI和市场导向型FDI对中国工业绿色创新效率的空间外溢效应,并结合人力资本流动和经济资本流动等指标构建静态和动态相结合的空间权重矩阵,并利用具有贝叶斯修正效应的空间杜宾固定效应模型进行估计。结果表明,技术追寻型FDI对工业绿色创新效率有显著的负向直接效应和空间溢出效应;而市场导向型FDI对工业绿色创新效率有显著的正向直接效应和空间溢出效应。     

FDI溢出与区域技术进步的非线性效应研究

采用考虑“坏”产出的Malmquist-Luenberger指数测算我国全要素生产率，构建面板平滑转换模型研究技术进步与外商直接投资（FDI）之间的非线性关系.研究结果表明，早期经济发展阶段，由于我国与投资国之间的技术差距过大，“FDI技术溢出效应”并未出现，此时FDI不利于技术进步.随着经济逐渐发展，FDI对技术进步的抑制作用逐渐减弱，并开始转为正的促进作用，而当经济发展到门槛值时，促进作用逐渐明显，“FDI技术溢出效应”出现.此外，人力资本和金融发展程度对技术进步的影响也存在门槛效应，其中，人力资本对技术进步的影响最开始为负，然后转为正，而金融发展程度对技术进步的影响最开始为正，然后转为负.     

上海市外商直接投资对国内投资的影响研究

自改革开放以来,上海市成为中国吸收外资最成功的城市.大量的外资流入,促进了上海市的经济技术发展.首先从基本的投资、生产模型推导出FDI与总投资之间的回归模型,再利用上海市1981年至2006年的数据分析FDI对国内投资的影响,发现FDI对国内资本产生"挤入效应".通过分析流入上海市的外资结构、上海市的外商投资形式的比例、国内投资形式比例和国内外"技术差距",来解释"挤入效应"的产生原因.     

中国进口贸易的技术外溢效应测度与分析

新经济增长理论认为进口贸易的技术外溢效应是一国技术进步的重要源泉,伴随着中国进口贸易的快速增长,对中国进口贸易的技术外溢效应的测度等问题也正在引起人们的关注。结合国内外的相关研究成果,构建了中国进口贸易的技术外溢效应的动态误差修正模型,对长期与短期的技术外溢效果进行测度与分析,最后根据实证结果提出了一些政策建议。     

外商直接投资对我国国内投资影响的实证分析

运用协整分析与误差修正模型，就1983—2007年间外商直接投资对我国国内投资产生的影响做了实证分析。长期来看，外商直接投资对国内投资产生了挤出效应；短期来看，外商直接投资对国内投资存在滞后一期的负影响。有关政府部门要对当前的外资利用政策做一定程度的调整，从而削弱挤出效应，不断提高外资利用的质量。     

我国机械工业FDI技术溢出效应的实证分析

FDI已成为国际技术转移的重要渠道,而作为我国国民经济发展先行领域的机械工业,近年来吸收的FDI快速增加。本文以我国机械工业六大子行业1999至2005年的面板数据为基础建立计量模型,分析FDI的技术溢出效应,结果表明我国机械工业内资企业产出的增加主要是受到内资投入而非外资投入增加的影响。在引进FDI的过程中,尚存在多方面因素制约技术溢出效应的发挥,应采取一些相应措施以便有效地利用FDI,使之对我国机械工业的技术进步起到积极作用。     

FDI流动的就业效应：理论与实证分析

主要从理论与实证两个层面探讨了FDI流动对我国就业的影响机理及其效应大小.首先从就业创造、就业替代和挤出以及就业转移方面分析了FDI流入、流出的就业效应的影响途径.其次选取我国1990—2009年的相关统计数据,运用协整分析、ECM（误差修正模型）和Granger因果关系检验等计量经济学方法,对我国FDI流入、流出与就业的关系进行了实证研究.结果表明：我国FDI流动与就业之间存在一个长期稳定的均衡关系,FDI流入对我国的总就业起到了积极的促进作用,FDI流出对我国的总就业具有一定的负面影响,FDI流入的就业正效应大于其流出的负效应.最后提出了相关的政策建议.     

制造业外资流入的数量控制与政策偏向

分析外商直接投资流入对中国制造业发展所形成的"空洞"问题,认为FDI对中国制造业的技术外溢效应和提高作用值得怀疑。借助G.Grossman及P.Howitt等人构建的经济增长模型得出我国制造业FDI的流入规模;利用相关数据建立外资制造业的生产函数,在此基础上揭示制造业内部问题。针对"空洞"问题,从FDI流入控制、外资制造业借鉴、金融等方面提出相关建议。     

我国工业部门FDI技术溢出效应实证研究——基于苏州和宁波的比较

文章以Feder（1983）模型为基础构建计量模型，对苏州、宁波两地FDI在工业部门中的技术溢出效应进行计量分析和实证检验。分析结果表明，苏州的FDI对内资企业的技术进步产生了显著的促进作用，而宁波的FDI所产生的技术溢出效应非常微弱。     

宁波FDI技术溢出效应的实证分析

FDI的技术溢出效应引起了理论界广泛关注,但现有研究认为FDI对不同地区的作用不一定相同。文章以宁波为例,根据柯布-道格拉斯生产函数建立衡量技术溢出效应的数学模型,利用宁波市相关数据,对其FDI技术溢出效应进行了实证分析。研究结果表明：宁波外商直接投资对本地经济产生了负面技术外溢效应,其原因在于宁波企业主要以劳动密集型为主,技术水平较低,与跨国公司差距大,自身技术吸收能力低。为此,文章从调整引资结构、促进内外资企业联动发展等方面提出了提升宁波FDI技术溢出效应的若干建议。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.