Uncovering asset stripping during China's privatization

This paper empirically studies the occurrence and extent of asset stripping via undervaluing public assets during the mass privatization of state-owned and collectively owned enterprises in China. Using three waves of a national survey of private firms, we provide evidence that state-owned and collectively owned assets were substantially underpriced, indicating the presence of corruption during privatization. Further analysis shows that the extent of underpricing is more severe in regions with less market competition or weaker property rights protection, and more pronounced for intangible assets such as intellectual property rights and land use rights. When comparing firm efficiency between privatized firms and de novo private firms, we find that the former group continues to enjoy considerable preferential treatments, yet significantly underperforms the latter, possibly due to continued government control and intervention. Finally, we provide evidence that insider privatization is an important source of corruption during the privatization process.     

纤维蛋白胶粘合法联合神经生长因子治疗周围神经损伤的临床疗效

目的探讨纤维蛋白胶(FG)粘合法联合神经生长因子(NGF)治疗周围神经损伤的临床疗效。方法选取我院2006年8月至2013年10月就诊的124例腓总神经损伤患者,随机均分为两组,对照组患者单纯使用缝合法,试验组患者在缝合法的基础上配合使用FG粘合法联合NGF治疗,随访6个月以上,分析两组患者的运动功能和患肢感觉疗效。结果试验组患者总有效率明显优于对照组,差异有统计学异议(P<0.05)。结论周围神经损伤的修复与再生过程中使用FG粘合法联合NGF治疗,可有效改善患者症状,安全性高,不良反应较少。     

孵化器与风险投资"联姻":障碍分析与策略选择

虽然在理论上孵化器与风险投资存在较多的互补性,但总体而言,两者的合作并没有取得实质上的进展。本文对双方“联姻”中存在的障碍进行了较详细的分析,指出缺乏合作动力和双方自身的一些缺陷是影响“联姻”的主要障碍;在剖析两者主要的“联姻”方式特点的基础上,提出了当前孵化器应该采用练好内功,创造条件,循序渐进地引入风险资本的观点。     

On the Value of Municipal Bond Insurance: An Empirical Analysis

Using a large sample of municipal bond data from 2001 to 2010 in the U.S., this paper documents the time variation of the value of municipal bond insurance, estimated from the insured and uninsured bonds yield at issue differentials. We find that insured municipal bonds carry significant lower yields at issue compared to those of the equivalent uninsured bonds before 2008. However, this cost saving disappeared with the aftermath of the subprime credit crisis. We find that the supply of bonds and the level of market interest rates to have significant positive impacts on the time‐varying value of bond insurance. We also detect asymmetric response of these yield differentials to rises and declines of market interest rates. Economic intuition suggests that the value of municipal bond insurance is a function of business cycles but our tests support the contrary, which may be explained by the habitat preference of municipal bonds issues.     

新知识的突变型产生方式研究——基于尖点型突变理论的视角

运用突变论中尖点型突变理论的一般原则,建立起新知识产生方式的数学模型,对其中新知识的突变型产生方式进行了分析。通过分析,形成了两个方面的认识:①新知识突变型产生方式得以形成的内在根据是知识系统内相干效应引发的巨涨落的推动。②新知识突变型产生方式在外表形态上具有突发性和随时性的特点。在此基础上,得出了有关知识创新的几点启示。     

基于实时监控的网站反篡改系统设计

随着Internet和网络技术的发展,网站成为单位信息发布和宣传的重要平台。但随着网站建设的规模化和大众化,网站安全也成了日渐严峻的问题。本文提出了一种基于实时监控的Windows平台下网站反篡改系统的设计方案,用以提升网站安全防护能力。     

中国城市化水平与产业生产率增长的实证研究

对1978-2008年中国城市化水平对第二产业和第三产业生产率增长的影响进行实证分析,结果显示：城市化对产业增长的影响有着类似于全要素生产率（TFP）的作用;城市化对产业生产率增长的技术效应和要素重置效应都有贡献。这表明,城市发展对产业增长形成了要素的集聚效应和重置效应,促进了产业生产率的提高;但工资成本的上升不利于产业生产率的增长。     

团队创造力研究理论评析

团队层面的创造力已成为当今理论研究的热点内容。通过相关文献梳理,从团队创造力的内涵、维度、研究视角以及影响因素等方面对现有研究进行系统述评,并就未来研究方向和重点予以展望,以期为后续研究以及人力资源管理实践提供参考。     

An Equilibrium Approach to the Aggregation of Beliefs

This paper presents a new answer to the old question of how to aggregate individual beliefs. We construct a model which allows agents to take arbitrage opportunities against the aggregated belief by making contingent claims against the states, and the aggregator (market maker) regulates the probability of states. When all claims from the agents are mutually covered for every realization of the state, an aggregation of individual beliefs is thus obtained. We prove the existence and uniqueness of the equilibrium aggregation, and also show that the aggregate belief lies in the convex hull of individual beliefs. This model allows us to address some important problems such as how individual agent’s attitude toward risk and wealth endowment affect the outcome of the aggregation process, and whether the aggregate belief satisfies the well-known properties like equal treatment.     

2008年国际经济热点问题研究综述

2008年,我国经济学界对国际经济的热点问题展开了深入研究。本文将从美国金融危机产生的原因及影响、人民币汇率水平与汇率制度改革、利用外资及外资银行问题、全球经济失衡问题、经济全球化与中国对外开放战略、粮食危机问题等方面对相关研究观点进行综述。