Better peers,better scores? A study of twin junior high school graduates in Taiwan

Using data of twin students graduating from junior high schools between 2002 and 2004 in Taiwan, we estimate the effects of peers on high school joint entrance examination performance. To alleviate the potential endogeneity of peer educational achievement, linear models with twin fixed effect and instrumental variables are estimated. Quantile, quantile with twin fixed effect and quantile with instrument variables regressions are also implemented to determine whether estimated peer effects differ at various locations of the testing scores’ conditional distributions. Positive and statistically significant peer effects are found to exist at the mean and at different quantile levels.     

投资者会听话听音吗??--基于管理层语调视角的实证研究

我国投资者会听话听音吗？文章利用文本分析方法,基于我国上市公司2005－2012年年度业绩说明会上的管理层语调数据对此进行了实证检验。研究发现,投资者对管理层的净正面语调做出了显著的正向反应,尤其是对负面语调做出了显著的负向反应。这表明在我国强调“意会”的语境文化背景下,投资者会听话听音,管理层语调具有信息含量,上市公司的业绩说明会具有其自身的存在价值。文章的研究结果还意味着,“词袋”方法及其构建的管理层语调用词列表在我国儒家文化背景下具有一定的适用性,值得开展进一步的研究。     

核心企业集约的多产品、多级供应链库存控制策略研究

在供应链环境及结构稳定情况下,供应链上的各节点企业,根据需求来调整相应的运作策略。基于多层供应商及供货产品为多品种且集约到一个核心企业的供应链网络,根据该供应链网络供需结构和特点分析了各节点的需求特征,得出了订货提前期为随机条件下的最佳库存费用,并利用各节点服务水平约束下的临界值及库存费用凸函数特性确定了供应链的运作策略。     

How does knowledge depth moderate the performance of internal and external knowledge sourcing strategies?

Management literature has consistently shown that knowledge is the most important source of competitive advantage for a firm. However, it is still not clear how knowledge can lead to competitive advantage, and how firms can find strategies to leverage their knowledge bases. This study considers the strategic implications of knowledge depth and three knowledge-sourcing strategies: R&D, strategic alliances and acquisitions. The main and interaction effects of these factors were tested in the context of the US technology firms. The results confirmed the strategic role of knowledge and external leveraging strategies. We also found that technology firms with weak knowledge depth should focus on internal R&D to accumulate knowledge in core technology areas, while those with strong knowledge depth should lower internal R&D intensity and shift their strategic resources to inter-firm alliances and acquisitions.     

李嘉图地租理论破产了吗?——农村公共品供给问题再研究

地租是土地问题的核心内容,是研究土地问题的出发点和归宿。笔者梳理了李嘉图地租理论并检视了改革开放以来土地政策成效。李嘉图地租理论分绝对地租和相对(极差)地租,这种理论的实践后果在中国得到了比较好的印证与验证。第一,到底要不要绝对地租,是采取法律手段强制剥夺还是任其自然演化,这就是两种不同的历史选择;第二,相对地租是集中还是分散,各有得失,应如何选择?这些都是问题。笔者借助对李嘉图的地租理论的梳理,对改革开放以来的土地政策加以全面系统地审理,深刻反思土地政策实施所带来的深刻变化。     

工业互联网平台对产业融合影响的实证研究

工业互联网是推进我国经济高质量发展的重要引擎,是制造业转型升级的加速器。工业互联网平台已成为一种新的经济业态和服务载体,并渗透到产业与企业各个层面,深刻影响着制造业产业融合水平。基于2013—2019年省级面板数据,运用面板分位数回归法,分析工业互联网视角下平台经济发展水平与产业融合的关系,揭示工业互联网平台发展水平对产业融合的作用机理,检验制造业升级对平台经济发展水平与产业融合的中介效应。结果表明,工业互联网平台发展对技术融合与生产性服务业和制造业融合的影响不显著,对供应链与价值链融合有显著正向影响。进一步分析发现,制造业升级在工业互联网平台对供应链与价值链融合的影响中具有完全中介效应。研究结果对揭示工业互联网平台、制造业升级和产业融合三者间关系,推动工业互联网平台赋能制造业融合发展具有重要意义。     

不确定环境下创业型领导如何提升组织创新绩效

创业型领导是企业应对高度不确定环境的有效领导力,通过机会开发、变革创新保持竞争优势与实现可持续发展。依据战略创业理论和效果推理理论,对高科技企业高管和员工展开问卷调查,探究不确定环境下创业型领导对组织创新绩效的影响机制。结果表明：创业型领导正向预测组织创新绩效;组织即兴在二者之间起部分中介作用;环境动态性正向调节创业型领导与组织即兴关系,并进一步调节组织即兴在创业型领导与组织创新绩效间的中介效应。该研究发现对企业充分发挥领导效能、促进组织创新具有重要指导意义。     

德国以色列国际科技合作情况研究

本文对德国和以色列国际合作关系进行了梳理,总结了两国主要的合作领域和合作项目,并运用科学计量学方法,对1996-2013年SCI收录的德国和以色列合著论文的时间序列、合作领域、主要的合作机构等进行了统计分析,揭示德以两国合作论文的特征,探讨两国科教合作特点。两国主要通过政府间、科研机构和大学进行合作,并成立了相关的基金会,为科研项目提供资金支持。我国应该在保持政府间合作的基础上,促进科研机构、大学之间的相互交流合作,设立相应的合作基金会,加强民间合作,积极发展多领域、多层次、多学科的全面合作,提升我国的科技创新实力。     

Does corporate governance play an important role in BHC performance? Evidence from the U.S.

This study explores the relationship between the operating performance and corporate governance of bank holding companies (BHCs) in the U.S. The modified data envelopment analysis (DEA) is utilized to integrate the five rating indicators of CAMEL (Capital Adequacy, Asset Quality, Management, Earnings, and Liquidity) so as to estimate the BHCs' performance. This study also employs the modified tiered DEA to categorize 68 BHCs into three Tiers. Additionally, the truncated-regression is employed to discuss whether or not the corporate governance would affect the performance of BHCs. The empirical results present the trade-off relationship with CAMEL indicators in the Tier1—Efficient BHCs. Moreover, it has been found that there are negative impacts on BHC's performance from board size, outside directors, the average age of directors and CEO/Chairman duality, while there are positive impacts from the number of committee and Big-4 auditors. The results further prove that corporate governance is important for the operating performance of BHCs.