能源系统动力学应用研究综述

对系统动力学理论在国内外的发展过程以及其在不同领域的广泛应用进行研究,概括了能源系统动力学的实质是系统动力学理论与SD模型在分析各类能源问题的实证研究与应用,报告了能源系统动力学国内外研究现状,总结了系统动力学在能源领域的应用以及其对环境保护、经济发展、社会进步等方面的贡献,并在此基础上展望了能源系统动力学在大数据时代与数据挖掘及GIS等理论结合研究的方向.     

Keiretsu centrality — profits and profit stability: A power dependence perspective

Prior studies compare keiretsu member firm and independent firm performance. Here, we use historical and power dependence perspectives to theorize that the Japanese keiretsu system primarily benefits the most central firms. We test this by examining the performance of two types of keiretsu firms (central firms and other member firms) within two types of keiretsu (horizontal and vertical). We hypothesize and find that: (1) central vertical keiretsu firms are more profitable than central horizontal keiretsu firms; (2) central horizontal keiretsu firms have greater profit stability than central vertical keiretsu firms; (3) central vertical keiretsu firms are more profitable than non-central vertical keiretsu firms; and (4) central horizontal keiretsu firms have greater profit stability than non-central horizontal keiretsu firms. Implications for managers and future research directions are discussed.     

基于专业质量保障体系的德育为先与创新策略——以高职专业人才培养为例

党的教育方针把德育放在学生全面发展的领先地位,"德育为先"在理论与实践中被证明是正确的。针对传统德育工作存在的淡化僵化等不足,必须重点推行"三个转变",构建"全体性、全程化、全方位"德育为先体系,在坚持高职专业质量"德育为先"原则的同时,更应重视德育思路与方式的创新。     

制度创新与经济增长——一个理论分析框架及实证检验

任何经济增长过程都是在一定的制度环境中进行的，有必要将制度因素纳入经济增长理论当中。在新古典经济学框架下，本文通过理论模型分析，认为稳态下的经济增长率跟制度创新有着紧密的正向关的关系。在理论分析的基础上，本文基于1978～2012年的省际面板数据，利用半参数估计和线性回归估计方法，实证分析结果表明：国家财政干预的增强、国有经济的强化和垄断作用加强从整体上抑制了我国以及不同地区的经济增长，提高市场开放度和对产权的保护程度则对经济增长产生了积极的正向促进作用，制度差异是引起我国区域经济增长差异的重要因素之一，制度创新仍是当前我国经济增长的关键。     

菱角壳的化学成分和药理活性研究进展

近年来对菱角壳的研究主要分为化学成分和药理活性研究两个方面,其中化学成分方面的研究可以概括为生物碱、酚酸类、萜类和甾体、多糖类、黄酮类5个方面;药理活性方面的研究可以概括为抗癌活性、抗氧化活性、降低α-葡萄糖苷酶活性、保肝护肝活性、抗菌活性5个方面。目前在化学成分方面的研究较弱,从研究结果来看,没食子酸及其衍生物是菱角壳的主要药用成分。最后就菱角壳的开发利用提出了几点建议。     

Firm resources,competitive actions and performance: investigating a mediated model with evidence from the in‐vitro diagnostics industry

Building on the resource‐based view (RBV) and competitive dynamics literatures, this paper proposes that considering resources or actions independently offers an incomplete understanding of the drivers of superior performance. Instead, we hypothesize that resources enable competitive actions and that when these actions leverage the firm's resources, superior performance results. We tested these hypotheses with panelized data on the technological resources and competitive actions of firms in the in‐vitro medical diagnostic substance manufacturing industry. The results provide substantial support for our hypotheses, specifically with respect to mediation. Our theory and results underscore how the integration of the competitive dynamics and RBV literatures can significantly improve our understanding of firm performance. Copyright © 2011 John Wiley & Sons, Ltd.     

再思社会科学方法论的形式主义与实质主义之争——以经济学的新进展为例

笔者从社会科学方法论中的形式主义与实质主义之争这一古老论题出发,阐明了经济学中的形式主义思想在最近半个世纪的发展是建立细节完全刻画的"全模型",并指出其背后的理念不在于建立普遍规律,而在于形成可以用以启发人们理解经验世界的辅助性认知手段。在澄清全模型方法认识论价值的同时,本文也指出其应用重点不在于形成理想化与意识形态化的叙事,而在于针对局域的经验事实,建立具有确定经验限定意涵的模型化推论,以阐明经验事实背后不易被单纯质性研究阐发的机制。当代经济学方法论显示的这一发展,可以被称为"形式主义经济学的实质主义化",对这一趋势的把握有助于揭示主流经济学独特的认识论价值。     

我国农村普惠金融发展的现状及思考

本文首先介绍了普惠金融以及农村普惠金融的相关概念,然后简要介绍了我国农村普惠金融已取得的阶段性成就,分析了存在的问题,并提出了改革建议。希望通过对现状的分析,厘清进一步深化改革的思路,进而为我国农村普惠金融的可持续发展提供借鉴。     

The Sarbanes‐Oxley Act and the Choice of Bond Market by Foreign Firms

This paper examines the economic impact of the Sarbanes‐Oxley Act (SOX) by studying foreign firms’ choice of whether to issue bonds in the U.S. public bond market or elsewhere before and after the law's enactment in 2002. After controlling for firm characteristics, bond features, home‐country attributes, and market conditions, I find that foreign firms rely less on the U.S. public bond market after SOX. Additionally, some determinants of choosing the U.S. public bond market have changed since the passage of SOX: firms listing equities on U.S. stock exchanges, adopting International Financial Reporting Standards (IFRS), and doing large bond issuances are more likely to choose this market in the post‐SOX period than in the pre‐SOX period. Overall, these results are consistent with a shift in the expected costs and benefits of choosing the U.S. public bond market following SOX. This paper provides the first evidence about how SOX influences debt financing decisions and alters capital flows across international bond markets.