中小城市创新型城市建设案例研究

常州市作为国家创新型试点城市,坚持系统创新和经科教联动战略,开放集聚国内外创新资源,围绕产业链布局创新链,围绕创新链完善资金链,通过体制机制创新,形成了以产业为导向、企业为主体、产学研相结合的技术创新体系和区域创新体系。为进一步增强创新实力,提出在培育创新企业、高端产业、创新园区、知识产权强市、开放创新和创新创业机制6个方面寻求新突破。     

担保:中小企业融资的有效选择

随着我国社会主义市场经济不断发展与深入,中小企业作为动经济增长的重要力量,吸纳社就业的主要载体,技术与机制创的有效组织形式,在我国国民经发展、社会稳定和人民生活改善起着举足轻重的作用。据国家发委统计,中国GDP和社会销售的五成以上、工业新增产值的七以上、税收的四成以上以及出口额的六成以上,都是由中小企业造的。林毅夫等人的研究表明,小企业的增长率与国民生产总的增长率有强烈正相关(简单相系数达0.867)。中小企业创造的终产品和服务的价值占全国DP比重的50%以上,提供的产技术和服务出口约占全国出口值的60%,实现利税40%以…     

有偏技术进步对碳强度的影响及传导机制研究

通过构建包含资本、劳动和碳要素的超越对数函数模型,对中国30个省（市）（因数据缺失,不包含西藏和港澳台地区）技术进步偏向进行判别,通过构建多重中介效应模型,探究其影响碳强度的传导机制,并分析不同资源丰裕度下传导机制的异质性。主要结论：(1)碳要素偏向型技术进步和碳强度呈显著正相关,技术进步偏向碳节约型有助于推动碳减排;(2)碳要素偏向型技术进步可通过能源利用效率和经济发展水平中介效应间接影响碳强度;(3)资源型省（市）主要通过提高经济发展水平路径,而非资源型省（市）主要通过提高能源利用效率路径促进碳要素偏向型技术进步的减排效应;(4)碳要素偏向型技术进步的减排效应存在显著双门槛效应,能源利用效率越大、经济发展水平越高,碳要素偏向型技术进步对碳强度的影响越大。因此,需加大技术进步偏向碳要素节约的诱导力度,注意不同资源丰裕度下碳减排的不同路径,加强能源利用效率提高,推动经济绿色发展,助力“双碳”目标实现。     

基于复杂网络视角的供应链脆弱性预防和应对策略

分析了供应链网络的复杂网络相关特性,揭示了供应链网络脆弱性的产生机理;基于复杂网络的视角,研究了供应链网络脆弱性的预防策略;并运用牵制控制和弱连接理论研究了供应链网络发生中断或者发生突发事件后的应对策略.     

城市-文化-建筑

对城市文化缺失造成城市特色消失、发展日益趋同的现象进行了研究;从城市与城市文化的关系入手,分析了城市文化的概念,城市文化对城市的意义,并以城市建筑文化为例,分析了建筑对城市的意义,城市建筑文化存在的误区;探讨了在建筑中如何体现城市文化;最后以南京市为例,构想了南京建筑文化的发展方向和实施措施.     

Economic implications of a co-investment scheme for FTTH/PON architectures

Due to the high costs associated with the deployment of the passive infrastructure of FTTH networks, a few alternative operators have pondered the possibility of making co-investments based on a network sharing model. The purpose of this article is to explore economic aspects of a co-investment scheme for present and future FTTH/PON architectures. The article describes the cost reductions that can be achieved when a co-investment scheme is used, as well as the relationship between market shares and the cost per home connected. A cost model was employed to calculate the investment per home passed and the investment per home connected. The investment per home passed for an alternative operator indicates significant cost reductions when a co-investment scheme is used. On the other hand, the results show that when the incumbent's market share is equal or higher than the total market share of all the alternative operators that share the network infrastructure, the investment per home connected for an alternative operator is higher than that for the incumbent operator. Moreover, to be cost competitive with the incumbent operator, the necessary market share that each alternative operator should achieve is much lower than that of the incumbent operator.     

Weak and Strong Cross‐Sectional Dependence: A Panel Data Analysis of International Technology Diffusion

This paper provides an econometric examination of technological knowledge spillovers among countries by focusing on the issue of error cross‐sectional dependence, particularly on the different ways—weak and strong—that this dependence may affect model specification and estimation. A preliminary analysis based on estimation of the exponent of cross‐sectional dependence provides a clear result in favor of strong cross‐sectional dependence. This result has relevant implications in terms of econometric modeling and suggests that a factor structure is preferable to a spatial error model. The common correlated effects approach is then used because it remains valid in a variety of situations that are likely to occur, such as the presence of both forms of dependence or the existence of nonstationary factors. According to the estimation results, richer countries benefit more from domestic R&D and geographic spillovers than poorer countries, while smaller countries benefit more from spillovers originating from trade. The results also suggest that when the problem of (possibly many) correlated unobserved factors is addressed the quantity of education no longer has a significant effect. Finally, a comparison of the results with those obtained from a spatial model provides interesting insights into the bias that may arise when we allow only for weak dependence, despite the presence of strong dependence in the data. Copyright © 2016 John Wiley & Sons, Ltd.     

基于内容过滤的反垃圾邮件系统的设计与实现

垃圾邮件日益蔓延,引起全世界的广泛关注,研究基于内容过滤的反垃圾邮件技术,主要包括基于原则评分和基于概率统计的方法,并进行系统的设计和实现,最后,在实验中通过采用K次交叉的验证方法,得到系统的评价指标,并证明了系统的有效性。     

基于博弈论的绿色供应链运作中的政府行为分析

目前,我国在绿色供应链的推广实施过程中存在一些问题,在这种情况下进行绿色供应链的研究对提高其运作效率,提高我国产品在国际市场的竞争力,以及保护环境和实施可持续发展战略具有一定的意义。文章阐述有关绿色供应链方面的内容,就其现状进行了分析,并在此基础上,借助博弈论这一工具,建立相关模型,对绿色供应链运作中的政府行为进行了分析。     

泉州市中小企业融资问题探析

中小企业对福建省泉州市的经济发展作出了重要贡献,但近年来受金融危机影响,中小企业发展面临巨大困境,其中以融资难为典型代表。如何突破中小企业的融资瓶颈,是近年来学术界和企业界人士共同关注和探讨的热门话题。文章从泉州市中小企业融资的现状出发,探讨了泉州市中小企业的融资难问题主要表现在自身融资能力有限、直接融资和间接融资受国家政策和银行制度的严格限制以及融资体系不完善等方面,进而分析其成因并提出相应对策。