基于GEM模型的宁波汽车产业集群竞争力比较分析

制造业是推进宁波经济发展的强大动力之一,而作为制造业细分行业的汽车产业对宁波经济自然也起到促进作用。因此如何科学发展宁波汽车产业显得尤为重要。基于GEM模型构建宁波汽车产业集群竞争力评价指标体系,利用变异系数法确定各项指标权重,从而得出宁波汽车竞争力强弱,并且与上海、重庆以及广州汽车产业进行对比分析,最后针对实证结果给出意见及建议。     

粘土稳定剂防膨率评价方法分析

防膨率是筛选和评价粘土稳定剂产品的重要指标。为了提高粘土稳定剂防膨率测定方法的准确性和重现性,结合实际检测工作,逐一分析了页岩膨胀仪法、具塞量筒法和离心法测定粘土稳定剂防膨率的误差来源和影响因素。结果表明:离心法可以减少仪器、环境、空白等方面产生的误差,测试实验条件下的相对标准偏差在1%以下。     

异质性、机构投资者与会计稳健性

以2000—2011年沪深A股上市公司为样本,基于企业本身和市场异质性的视角,考察机构投资者持股对会计稳健性的影响,结果发现：机构投资者持股比例的提升会导致企业会计稳健性的下降,在国有企业、成长性较好的企业中这种负向关系增强了,而企业所处地区的市场化程度对机构投资者持股与会计稳健性之间的负向关系无显著影响,此外,相比“压力抵制型”机构投资者而言,“压力敏感型”机构投资者持股比例的上升导致会计稳健性下降更快。     

中国产业发展环境的变化及其影响

进入“十二五”以来,中国产业发展环境出现若干重大标志性变化,突出地表现为城镇人口超过农村人口,城镇化对产业需求和产业布局的影响日益广泛而深刻;人口老龄化提速、劳动年龄人口数量和占比下降,对产业需求和产业成本（结构）的影响出现重大变化;投资和消费对经济增长的贡献出现转折性变化,培育产业发展新动力、拓展产业发展新空间的重要性迅速凸显;国际形势对中国产业发展的影响日趋复杂严峻,推进产业迈向中高端水平、培育对外经济新优势日趋紧迫。“十三五”期间,科学研判这些变化,有利于积极适应把握引领经济发展新常态。     

金（昌）武（威）工业一体化发展战略研究

从整个金武地区看,人均生产总值位于工业化初期阶段,产业结构位于工业化中期阶段,第一产业从业人员比重位于工业化初期阶段,城镇化水平位于工业化初期阶段,总体判断是位于工业化初期阶段。基于对金武地区工业一体化发展的SWOT分析,根据发达地区的发展经验,考虑到金武地区的发展实际,文章提出了金武工业一体化发展的六大战略：（1）＂双新提升＂战略;（2）＂双集带动＂战略;（3）＂双品创优＂战略;（4）＂双轮驱动＂战略;（5）＂特色争先＂战略;（6）＂产业集约＂战略。     

CATV系统前端载噪比的计算方法

本文针对CATV前端系统设计中载噪比的计算，给出了适用于各种信号条件下的载噪比计算公式。     

长三角地区产业结构与就业结构关系的实证分析

对长三角地区产业结构与就业结构关系进行实证分析,并得出以下结论:从总体趋势看,长三角地区就业吸纳能力不断增强;从产业结构和就业结构的协调性看,长三角地区就业结构调整滞后于产业结构调整,但偏离度在逐渐缩小;从就业效应看,长三角地区第二产业的就业吸纳能力最强,第三产业相比第二产业的就业吸纳能力较弱。     

Prices and market structure: an empirical analysis of the supermarket industry in Chile

This article investigates empirically the relationship between market structure and consumer prices in the supermarket industry in Chile. A panel of monthly data from 16 cities in the period January 1998–September 2006 is used. We find that, the more concentrated the industry in a city, the higher the prices, while the participation of major national chains in cities tends to lower prices. In terms of magnitude, this latter effect prevails over the former. Moreover, the dominant local chain is found to behave differently depending on whether or not one of the national chains is present in the city. Finally, we find that prices rise when a national chain acquires another chain and both were previously in a city (inmerge) while if only one of the two was present (outmerge), prices fall.     

Innovation,external technical linkages and small firm commercial performance: an empirical analysis from Western New York

This paper examines the role of external service linkages in the innovation and market peformance of small manufacturing firms (SMFs). Survey data from a technological cross-section of 146 Western New York SMFs are summarized. The data suggest a helpful role for consultants in the product development efforts of innovative firms, especially those that serve foreign export markets. Several multiple discriminant models are presented, each of which suggests an interactive connection between SMF commercial performance, externa) technical links, innovation propensity and in-house R&D. It is argued that innovative SMFs that exploit specialized technical services perform significantly better than comparably sized firms that rely solely on in-house resources. It is also argued that the quality of a region's producer service environment may have a significant bearing on the growth potential of its SMF population. The paper concludes by discussing the main academic and public policy implications that flow from the empirical results.     

Lending technologies,banking relationships,and firms’ access to credit in Italy: the role of firm size

This paper analyses the role of lending technologies and banking relationships on firms’ credit access in Italy. Using EFIGE firm-level data, we show that the depth and strength of firm–bank relationships have heterogeneous effects on credit demand and rationing probabilities depending on the size of the borrower. Multiple banking relationships alleviate financial constraints for small firms, while borrowing from a large number of lenders hinders access to credit for large companies. Small and medium-sized enterprises with a higher share of debt with the main bank have a lower probability of being credit denied, as debt concentration contributes to overcome the opacity problems typical of the SMEs. Long-lasting relationships, by reducing information asymmetries, significantly improve access to credit for small and large firms. Conversely, we find that medium-sized enterprises are more exposed to financing constraints as relationship duration increases, due to possible lock-in effects. Finally, firms maintaining banking relationships based on transactional technologies are more likely to be credit denied, while the use of relationship lending technologies improves credit availability for both small and large enterprises.