外部研发合作广度与新产品开发绩效：一个有调节的中介模型

基于企业外部合作伙伴分布广泛的特点,从外部研发合作广度的两个维度（市场广度和研究广度）出发,选取2010—2018年160家中国制造业上市企业数据,运用多元回归分析法探讨外部研发合作广度对企业新产品开发绩效的影响。结果表明,外部研发合作的市场广度和研究广度正向影响新产品开发绩效,其中,研究广度的作用更为显著;网络学习在外部研发合作广度对新产品开发绩效的影响机制中存在部分中介作用;知识库同质性正向调节外部研发合作广度与网络学习的关系。结论丰富了新产品开发绩效前因变量研究,对企业制定外部研发合作战略,提升新产品开发绩效具有重要管理启示。     

基于PHP的电子文献资料管理系统

电子文献资料管理是提高企业信息化管理水平、提高管理效率,进而抓住机遇、增强自身实力及竞争力的重要保障。在总结了烟草行业多年的信息管理有效经验的基础上,采用B/S结构,利用PHP技术,实现了对电子文献资料的信息管理与信息挖掘。系统运行表明:该系统能够很好地满足企业对文献资料的存储、查询、分析和共享等需要,使文献资料及时、有效、准确地传递及处理。此系统的建立,大大提高了企业内部文献资料的管理水平。     

新形势下高职招生工作的对策研究

本文从实际出发,分析了目前高职招生面临的形势和现状、招生困难的原因,并提出了一些建议和设想,旨在为高职院校摆脱招生困境献计献策。     

Does the Connectivity of the Belt and Road Initiative Contribute to the Economic Growth of the Belt and Road Countries?

ABSTRACT

Since the Belt and Road Initiative (BRI) has been implemented for five years, it is time to ask whether the BRI contributes to Belt and Road (BR) countries’ economic growth, and how are the five elements of connectivity implemented between China and its partner countries since the BRI was proposed. This study focuses on the development of the five elements of connectivity between China and the BR countries from 2008 to 2017 using a comprehensive connectivity index extracted from principle component analysis, and then investigating if the connectivity has contributed to the economic growth of the BR countries with quantitative analysis of the fixed effect econometrical model. It is found that Russia, South Korea, and Singapore presented the top three levels of connectivity with China with regard to the overall connectivity index, varying from 1.4 to 2.4. Madagascar and Panama have the lowest level of connectivity with China, with values of ?0.8 to ?1.1. The result of the fixed effect model shows that the connectivity of the BR countries with China contributes to their economic growth. This provides quantitative evidence that the connectivity between BR countries and China has a significant influence on the economic growth of those countries.     

基于金融生态视角对当前国际金融危机的分析

基于金融生态视角对此次金融危机进行审视.金融生态主体行为失范、金融生态环境恶化等因素导致了金融危机的爆发,启示我们:金融生态与金融危机有着密不可分的联系,失衡的金融生态是导致金融危机的凶手,必须避免陷入恶性循环的怪圈.     

货币供应量与失业率关系的实证分析

失业问题是我国当前和今后相当一个时期最突出的经济和社会问题,货币政策应当在促进就业方面发挥更好的作用.货币供应量是货币政策体系中重要的中介指标,货币政策能否有效地影响就业目标,可以通过分析货币供应量与失业率之间的关系得到量化说明.本文以此为立足点,通过构建基于全部OECD国家的年度面板数据回归模型、部分OECD发达国家季度面板数据的LSDV模型讨论失业率与货币供给之间的关系.分析发现两者在统计上存在显著的U型非线性关系,在未达到最优货币供给上限时货币供给能够降低失业,但超过界限后则会加重失业.分析结果说明,以货币政策解决失业问题是可行的,关键在于对货币供应操作的正确把握.     

Policy Implications of the Effects of Concentration and Multimarket Contact in China’s Airline Market

Unlike many other mergers in developed countries, which might have been assessed and their effects estimated by antitrust authorities before being granted antitrust immunity, the airline mergers that swept China’s airline industry in 2002 occurred with no antitrust challenge. These mergers provide the opportunity to study important market power issues in China’s airline markets. Given that increased concentration and multimarket contact are the main legacies of an airline merger, the effects of mergers on these variables can raise the potential for the exercise of market power. However, an examination of the period 2002–2004 during which the Chinese airline mergers occurred shows that the resulting increased concentration and enhanced multimarket contact did not have important consequences for airfares in Chinese city-pair markets. The presence of Hainan Airlines appears to have played an important role in suppressing the airfares charged by China Eastern and China Southern.     

金融危机的发展趋向及后续影响

全面爆发的金融危机改变了几乎所有经济体的运行轨迹。美、欧、日等多个发达国家经济从温和放缓到急转直下,齐齐跌入衰退阵营;新兴市场国家经济则受累外部环境恶化,增速大幅放缓,陷入提前到来的周期性调整之中;中国经济与世界经济的联系从来没有像现在这样紧密。尽管各国政府展开了一轮强似一轮的援救行动,但至今收效并不明显：资产泡沫尚未充分释放,通缩可能性大大上升,贸易保护重新抬头。透过金融危机形成的诸多因素,重建国际金融规则成了当务之急。     

大鼠脑缺血后缺血区VEGF表达变化及通心络的影响

目的观察大鼠脑缺血后缺血区VEGF mRNA及蛋白水平随时间表达的变化及通心络对其的影响。方法制备大鼠大脑中动脉梗塞局灶性脑缺血模型,采用RT—PCR法及免疫组化法检测脑缺血后每组实验动物不同时间缺血区VEGFmRNA及蛋白表达的变化以及通心络的作用。结果1、正常大鼠脑缺血后脑组织中VEGFmRNA表达很少,大鼠局灶性脑缺血后VEGF mRNA表达逐渐增强,3d达高峰,缺血7d后叉降至约正常水平。VEGF主要在神经元阳性表达,表达趋势与mRNA基本吻合。2、通心络高剂组VEGF mRNA表达显著增强（p〈0.01,p〈0.05）;通心络各组vEGF阳性神经元数量增加：结论局灶性脑缺血可促进缺血区内源性神经保护因子VEGF高表达;通心络可增强和延长缺血区VEGF高表达,发挥对脑缺血的保护作用.     

供给管理及政策建议

鉴于当前国民经济中存在着结构性和长期性矛盾,有必要在科学发展观的指引下探索宏观调控模式的重构,将宏观调控理念由以需求管理为主转向需求管理与供给管理的协调配合。