我国资本积累过程中的技术进步及其来源——来自地区时序数据的经验证据

资本质量和体现式技术进步是经济增长的重要因素,但能否选择适宜方法计算体现式技术进步却直接影响估计的效果.本文假定经济产出满足CES生产技术并通过似不相关回归测算我国地区体现式技术进步大小,并检验其与经济产出、设备投资、人力资本积累、研发投入、外商直接投资和垄断程度的作用关系.结果发现我国地区体现式技术进步增长趋势明显,并且在我国经济产出、设备投资人力资本积累、研发投入和外商直接投资高及垄断程度低的地区,其资本体现式技术进步更明显.     

生产性服务业集聚与经济增长的空间计量分析

本文选取2003～2012年我国31个省、自治区、直辖市数据,运用空间面板固定效应模型,实证检验了我国生产性服务业集聚与经济增长之间的关系。结果表明：我国地区经济增长呈现明显的空间集聚特征;生产性服务业专业化集聚和多样化集聚对经济增长均具有显著的正向影响,但多样化集聚对经济增长的作用更为突出。因此,各地区应注重加强与相邻地区间的交流与合作,形成经济互助,以促进经济协调发展。同时应该提高我国生产性服务业的集聚程度,尤其是提高生产性服务业的多个产业间的共同集聚,充分发挥其对地区经济增长的正向促进作用。     

外商直接投资对中国纺织工业出口的影响分析

外商直接投资对东道国出口增长和出口结构的影响,不同行业有不同的效果。本文对我国外商直接投资和纺织工业出口贸易进行实证分析,来评估纺织外商直接投资对我国纺织工业出口增长和结构变化的作用。本文认为,纺织外商直接投资对我国纺织工业出口增长有推动作用,对出口结构改善作用不大,并提出相应政策建议。     

中国就业增长的实证分析与地区比较

本文利用年度数据对我国的就业增长进行实证分析,并利用地区面板数据展开研究,进行地区比较.研究表明:从全国来看,经济增长和工资水平增加对就业增长具有正效应,而资本对就业增长具有替代效应.从地区来看,经济增长对就业具有创造效应,工资水平增加对就业的影响具有负效应.不考虑工资水平增加对就业的影响,国内投资对就业的影响具有负效应,外商直接投资对就业的影响因地区不同而有差异.未来,我国需要制定相应措施,缩小地区之间的差异,如继续加快经济发展步伐;将外商直接投资更多投向中部和西部地区;以国家政策为指导,增加就业.     

通信技术进步对中国产业转移的影响——基于中国对外直接投资的分析视角

通信技术进步不仅使得信息传递和交流的成本骤降， 也使得企业可以在不同的地方协调和监督生产， 中国对外直接投资的发展与通信技术进步不谋而合。本文根据对外直接投资的产业动态聚集度指数分析了中国18个行业对外直接投资的转移方向和速度， 得出中国对外直接投资不断向服务业集聚，中间性行业对外直接投资规模虽在不断增加但在向其他产业转移， 采矿业转移效应十分显著； 在此基础上构建了通信技术进步与服务业、中间性行业以及采矿业的计量经济模型， 实证结果表明在新时代的对外开放格局下， 通信技术进步对服务业和中间性行业产业转移的促进作用会随通信技术的不断进步而增强， 对采矿业的促进作用则会随通信技术的进步而减弱。     

技术差距、资源分配与后发大国经济增长方式转换

经济增长的主要驱动要素的转变是经济增长方式转变的内核,而技术差距是影响经济资源配置格局和配置效率的关键变量。基于拓展的内生增长模型分析资源最优分配路径发现:经济增长方式随技术水平的提升从"生产性投资驱动"到"研发驱动"、从"模仿主导"到"创新主导"逐步转换。基于我国省级面板数据的经验分析表明:在不同技术水平的区域,生产性投资与研发投资、模仿与创新对经济增长和技术进步的效应不同。那么,我国作为一个后发大国在推进经济增长方式转变过程中也应根据与国际前沿的技术差距,合理配置生产性投资与研发投资、模仿投资与创新投资,并根据我国区域技术水平的差异性,"分层"推进经济增长方式的转变。     

基于STIRPAT模型的能源消费碳排放的影响因素研究——以长三角地区为例

本文分析了长三角地区1997～2016 年的能源消费总量、二氧化碳排放量和排放强度的变化趋势特征， 基于STIRPAT模型定量分析了该地区能源消费二氧化碳排放量与人口、人均GDP、外商直接投资、技术进步等影响因素之间的关系， 与已有研究不同， 本文技术进步指标的测算同时纳入技术投入和技术产出因素。结果表明， 各影响因素对二氧化碳排放的作用强度存在显著差异， 其中， 影响最大的因素是人口， 每增长1％， 二氧化碳排放量将增加1.914％， 其次分别是人均GDP、外商直接投资、技术进步； 整体技术进步实现的碳排放的减少量小于其带来的增加量， 技术进步水平并未达到使碳排放减少的程度； 人均GDP与二氧化碳排放量关系的研究结果不支持倒“U” 型的库兹涅茨曲线观点。     

FDI对中国出口贸易影响的区域差异实证分析

运用1985年～2009年的省级面板数据分析了外商直接投资对中国出1：7贸易地区差异的影响。结果表明．外商直接投资对中国出口存在着明显的促进作用，并且对东部地区的出口促进作用远远大于对中国中部和西部地区的出1：7促进作用。     

外商直接投资、政府支出对中国技术进步效应的经验分析

本文将外商直接投资和政府支出结合起来,主要通过建立时变参数模型,利用我国2000～2014 年的数据,对比分析外商直接投资、政府支出对我国技术进步的影响。根据分析结果提出对 策建议,加快我国技术进步的速度必须依靠政府的力量,增加教育投入,调整政府科技投入 结构和加强对科技资金的管理以及提高利用外商直接投资的质量。     

生产性服务业对经济增长贡献分析——以江苏为例

生产性服务业已经成为西方发达国家经济结构中增长最快的部门。生产性服务的发展不但改变了以往服务业的生产和经营方式,带动了传统服务业的升级改造,而且时国民经济的增长产生越来越大的影响,对经济增长的贡献也越来越大。文章从定性和定量两个角度分析江苏生产性服务业对GDP的影响,发现江苏生产性服务业有良好的发展趋势,其对GDP的拉动作用越来越明显,对产业结构的合理化发展有很大助推作用。因此,江苏生产性服务业在国民经济中的地位越来越重要,对江苏经济增长的贡献也是越来越大。     

Comparing FTTH access networks based on P2P and PMP fibre topologies

There is an ongoing discussion in the market which Next Generation Access (NGA) architecture best suits future needs and which investment and cost differences exist. The discussion can be subsumed as P2P vs. GPON, which is somewhat misleading as this article reveals. The discussion is driven by the fact that the high capital cost and the long asset life time of fibre mean that the technology choices made today will dominate the opportunities for telecommunication business of all market players, incumbents, competitors, content providers and business and residential users for many years in the future.The paper analyzes the cost and other differences between Fibre-to-the-Home (FTTH) access network architectures and their related different wholesale approaches by using the well-known and understood steady state approach applied in other NGA analyses in the past. In addition to the steady state analysis a dynamic cost evaluation is included taking into account the different investment behaviour of the FTTH architectures over time. The results describe investment and cost differences between architectures, incumbents and wholesale based competitive operators. The analysis has been performed for different geotypes (clusters) of decreasing population density in a representative European settlement structure.     

Indigenous peoples’ nutrition transition in a right to food perspective

In indigenous communities the nutrition transition characterized by a rapid westernization of diet and lifestyle is associated with rising prevalence of chronic disease. Field work and literature reviews from two different policy environments, Argentina (Jujuy) and Canada (Nunavut), identified factors that add to indigenous peoples’ disease risk. The analytical framework was the emerging human right to adequate food approach to policies and programmes. Indigenous peoples’ chronic disease risk tends to increase as a result of government policies that infringe on indigenous peoples’ livelihoods and territories, undermining their economic system, values and solidarity networks. Policies intended to increase food security, including food aid, may also fuel the nutrition transition. There is a need to explore further the connection between well-intended policies towards indigenous peoples and the development of chronic diseases, and to broaden the understanding of the role that different forms of discrimination play in the westernization of their lifestyles, values and food habits. Food policies that take due account of indigenous peoples’ human rights, including their right to enjoy their culture, may counteract the growth of chronic disease in these communities.     

A strategic skill based model of supplier integration and its effect on supply management performance

Supplier integration is a tool to help organizations gain competitive advantage. Strategic supply management skills and the supply management function's perceived status are hypothesized as antecedents to supplier integration leading to supply management performance. The sample for this study includes 152 executive level supply management professionals. The empirical results suggest that strategic skills and perceived status are essential antecedents to supplier integration and subsequent performance. Further, the relationship between strategic skills and performance is mediated by supplier integration. Results of a dominance analysis also suggest which strategic skills are most likely to explain status integration, and performance. These findings have significant implications for supply management theory and practice.     

面向对象的程序设计

用Ｃ＋ ＋ 语言阐述面向对象程序设计中封装和继承的概念以及在实际中怎样运用这些概念提高程序设计水平。     

Cost allocation of WCDMA and wholesale pricing for mVoIP and data services

This study estimates cost-based prices for wholesale voice and data services provided to 3G (WCDMA) MVNOs according to their distinct types. For estimation, 3G MVNOs are classified into different types, and the overall cost of WCDMA facilities are separated into voice and data components based on their subscriber rates, actual traffic rates, as well as efficiency consideration of traffic rates. The study then calculates cost-based wholesale prices of voice and data services for each of the 3G MVNO types. The result of this study shows that a cost-plus pricing scheme can help achieve the policy goals of the regulator, namely, lowering telecommunications tariffs and facilitating the introduction of new convergent-type services, far more effectively than the current retail-minus pricing scheme. The findings of this study may assist firms in developing business models based on 3G networks and telecom regulators in designing policies related to interconnection, mVoIP, prepaid calls, wholesale services, and network neutrality.     

Collectivism,individualism, and outgroup cooperation in a segmented China

A consistent theme in cross-cultural management research is that collectivists are more cooperative than individualists. We use Hofstede's measure for individualism–collectivism and combine it with an experimental measure of cooperation to test this relationship in China. In contrast to the established paradigm, we find that groups with higher individualistic scores are more cooperative than those groups with higher collectivistic scores. We attribute these results to groups being composed of outgroup members. In addition, we find that subjects from the more developed coastal area are more individualistic and cooperative than are subjects from inland China.

应用CGI技术创建CAI网页计数器

:CGI( Common Gateway Interface)是应用程序与 Web服务器交互的一个标准接口 ,利用该技术可以实现 HTML不具备的交互式主页功能。本文将通过“教育窗”主页的访问 (点击 )计算器的开发应用实例 ,提出了两种使用 CGI技术实现点击计数的方案     

钻井现场H2S气体的探测及防护

在钻井生产过程中，实施HSE管理体系，预防和控制H2S，保护每一位员工不受H2S气体危害，是钻井生产过程中HSE工作的重要一环。阐述了有害气体H2S的物理特性、毒性标准，介绍了几种常用的H2S气体探测器，以及具体操作方法。     

电子产品的电磁兼容性设计

首先介绍电磁兼容性的基本概念与研究领域,然后重点阐述电子产品的电磁兼容性设计与测量。     

SPYRO在烯烃原料生产方案测算中的应用

文章对SPYRO裂解模拟软件在石化企业烯烃生产原料优化方案测算中的应用进行了比较深度的概括分析.结合该软件在上海石化的实际应用,认为在劣质化原油加工份额不断增加的趋势下,SPYRO裂解模拟软件有助于石化企业在烯烃生产原料优化选择、生产计划合理安排、原油加工生产效益比较等方面为企业相关决策者提供有效地帮助.