企业如何利用社会网络提升吸收能力

在知识经济的背景下,吸收能力被认为是企业提升绩效和增强创新的战略能力.社会网络被认为可以对潜在的吸收能力和实现的吸收能力都产生积极影响.本文从社会网络的关系层面,从外部和内部两个视角,分别阐述了社会网络如何影响吸收能力的两个维度.本文还从提升吸能力的视角,提出了有效构建和维护社会网络的措施.     

Network Marketing Businesses and Chinese Ethnicity Immigrants in Australia

This study adopts two theoretical perspectives, Social Cognitive Theory and Theory of Planned Behavior, to examine a model of network marketing business participation by Chinese immigrants in Australia. A structural equations modeling analysis showed that the social environment within a network marketing organization positively influences the self‐efficacy of Chinese network marketers and their desire to seek opportunities. These factors positively influence the actions undertaken by network marketers, and subsequently, impact positively on their performance outcome.     

环境规制、产业结构对能源效率的影响

［目的］文章对我国各地环境规制、产业结构与能源效率之间的关系进行研究，旨在更加真实地反映环境规制、产业结构与能源效率三者之间的关系，为各地政府早日实现环境保护、产业结构优化与能源效率多赢的局面提供参考依据。［方法］基于DEA方法测算了我国各地能源效率，将我国划分为高、中及低能源效率3个地区，构建了环境规制、产业结构与能源效率之间关系的模型，通过对2007—2016年我国30个省（市、区）的相关数据进行分析研究。［结果］在高效率地区内环境规制与能源效率两者显著为正，在中效率地区内两者也显著为正，而在低效率地区内两者则显著为负； 在高效率区域与中等效率区域内产业结构与能源效率两者关系显著为正，而在低等效率区域内两者关系不显著； 在高效率地区内环境规制与产业结构两者之间的协同作用显著，而在中等与低效率地区内两者之间的协同作用不显著。［结论］能源效率高与能源效率中等地区内环境规制与产业结构均正向影响能源效率，而能源效率低地区内环境规制与产业结构均负向影响能源效率； 能源效率高地区内环境规制与产业结构对能源效率的影响具有共同强化作用，而能源效率中等与能源效率低地区内环境规制与产业结构间协同效应不明显。     

采气工劳动防护用品配置配备标准分析探讨

针对采气工在生产工作中所处的工作环境,分析了其对人体的7个部位可能造成的伤害,提出了"配置到站"与"配置到人"两种配置模式,从标准的适应性和经济性进行了分析,并提出了相应的劳动防护用品配置标准的改进建议。     

A Golden Formula in Neoclassical‐Growth Models with Brownian‐Motion Shocks

In the paper, a Golden Formula, which does not depend on the specification of production and preference functions, is established to reveal that time‐average of the growth rate of optimal capital accumulation will converge to a constant, which is endogenously determined by relevant parameters, almost surely. The Golden Formula naturally implies surprisingly interesting and also intrinsic economic relations between some important macroeconomic variables; for example, it serves as a direct bridge between the modified Golden Rule and the modified Ramsey Rule. Furthermore, it indeed subsumes and hence substantially extends the classical Golden Rule in deterministic theory.     

Object detection based on visual memory: a feature learning and feature imagination process

ABSTRACT

Visual memory plays an important role for the human’s visual system to detect objects. The features of an object stored in the visual memory have much lower dimensions than the features contained within an image. We simulate the visual memory as a feature learning and feature imagination (FLFI) process to build an object detection algorithm. The method is constructed by a bottom-up feature learning and a top-down feature imagination. The proposed object detection method is tested using publicly available benchmark data sets, and the result indicates that it is fast and more robust.     

NOMINAL GDP TARGETING AND CENTRAL BANK CONSERVATIVENESS

In the literature on monetary economics, there is the ‘inflationary bias’ result which predicts that the rate of inflation will be biased towards a higher level under discretionary monetary policy than under a rule‐based policy regime. It is established that a credible nominal target can eliminate this ‘inflationary bias’. In this paper, we examine the case of nominal GDP targeting, which is a rule‐based monetary regime. Depending on the degree of conservativeness by the central bank, we show in a stylized model the choice of different combination of inflation and real GDP targets can still result in an ‘inflationary bias’, and there also exists the possibility of a ‘dis‐inflationary bias’.     

刺芪参胶囊的制备工艺研究

目的:探索刺芪参胶囊的制备工艺。方法:采用正交实验,以总皂苷质量为指标,优化提取工艺;采用单因素实验优化制剂工艺。结果:在最佳提取工艺条件下,刺芪参胶囊提取物中的总皂苷含量为12.19 mg·g-1;以糊精作为填充剂、硬脂酸镁为助流剂、95%乙醇为黏合剂制备胶囊剂。结论:刺芪参胶囊的制备工艺稳定可行。     

标志性政府运作型展览会对城市展览业发展的负面效应——以广交会为例

无论国内外,对事件影响研究均是热点课题之一,西方学者对事件社会影响关注较多,而国内较热衷于经济影响,其中又以正面效应居多。展览会是事件领域重要组成,而1957年在广州举办至今一年两届的广交会,属于典型的标志性政府运作型展览会。研究从经济视角,通过文献分析、深度访谈等方法,探讨了广交会对城市展览业发展的负面效应。结果显示:广交会通过利率实现及体系运作对广州展览业形成挤出效应,实际造成挤出效应的是后者;广交会从规模、展品及品牌三方面对其他展览会形成遮蔽效应;对城市展览业发展有重要影响的保障体系资源往广交会倾斜,造成虹吸效应。最后,构建了标志性政府运作型展览会对城市展览业发展的三重负面效应框架。     

废旧机电产品再循环模式研究

能否有效处理日益增加的废旧机电产品对我国经济的可持续发展有着重要的影响。文章从产品的角度提出基于循环经济的“3个循环”的概念，并在分析现有废旧机电产品循环模式的基础上提出第二循环模式，同时给出了相应的产品剩余寿命评价模型。