开放式创新社区中用户交互反馈对个体创新贡献度的影响

开放社区中的用户交互反馈是用户创新活动的重要组成部分，基于需求满足理论，研究其他用户反馈对个体创新贡献度的影响。结合典型开放式产品设计社区——Local Motors平台，采用数据挖掘方法，从数量、质量和情感3个方面研究开放式创新社区中FOU对个体创新贡献度的影响。结果表明，反馈数量和质量均对个体创新贡献度有显著影响，其中反馈次数对个体创新贡献度有显著正向影响，反馈率和反馈人员多样性对个体创新贡献度有显著负向影响，反馈长度和反馈支持文件对个体创新贡献度没有影响，正向情感倾向在用户反馈和个体创新贡献度之间无任何调节作用。     

Financial development and economic growth in a microfounded small open economy model

The global financial crisis since 2008 revived the debate on whether or not and to what extent financial development contributes to economic growth. This paper reviews different theoretical schools of thought and empirical findings on this nexus, building on which we aim to develop a unified, microfounded model in a small open economy setting to accommodate various theoretical possibilities and empirical observations. The model is then calibrated to match some well-documented stylized facts. Numerical simulations show that, in the long run, the welfare-maximizing level of financial develop is lower than the growth-maximizing level. In the short run, the price channel (through world interest rate) dominates the quantity-channel (through financial productivity), suggesting a vital role of international cooperation in tackling systemic risk of the global financial system.     

Statistics for Studies of Human Welfare

Developments in the recent past have substantially increased our ability to measure, compute, and communicate. We take the view that a corresponding improved understanding of processes in the life sciences will come about only through more intensive studies of properties of statistical methods and algorithms and transparent, open source computing environments.     

公开市场操作与利率期限结构行为——基于混频数据信息的研究视角

在混频数据信息环境中,精准识别公开市场操作(央行政策利率)和国债收益率曲线(基准利率体系)之间的关联机制至关重要,其影响了货币政策期限结构传导的有效性。本文在混频Nelson-Siegel(N-S)利率期限结构模型框架下,引入央行政策利率,揭示公开市场操作与利率期限结构(水平、斜率、曲度)因子之间的作用机制。实证结果表明:混频数据信息条件下,引入的公开市场操作信息显著改进国债收益率曲线的拟合效果;斜率因子冲击对公开市场操作具有显著的正向影响,而利率期限结构因子对政策调控的反应不敏感。进一步研究表明,2015年以来,公开市场操作对斜率因子的影响逐渐扩大,政策利率向国债收益率曲线的传导效率得到显著提高,我国现代货币政策框架日益健全。     

公开市场业务与货币政策有效性——1997后中国货币政策传导梗阻的症结探析

1997年后我国一直实施“积极的”货币政策 ,但货币政策在传导过程中出现了梗阻 ,所起的作用远不尽如人意。公开市场业务是中央银行最重要的一个间接货币政策工具 ,作为公开市场业务主体的国债市场是央行公开市场操作的基本依托。我国国债市场在规模、流动性等方面发展滞后 ,仍是一个不成熟、不发达的市场 ,这使我国货币政策传导产生梗阻 ,严重抑制了货币政策效应的发挥     

我国开放式基金投资风格评价方法研究

基金业绩评价与其投资风格是密切相关的，投资者通过对基金投资风格的研究分类。可以选择适合于自己投资偏好的基金进行投资。本文在对开放式基金进行分类研究的基础上。抓住不同类型基金之间的主要差别，提出了两种新的基金风格评价指标。同时在我国现有的开放式基金中，选取15支样本进行了实证分析和检验，实证结果表明，我国开放式基金的投资风格趋于相同，投资者对于基金宣称的择时能力不可轻信。应该结合投资风格分析进行决策。     

The knowledge management strategy and the formation of innovative networks in emerging industries

This paper presents an agent-based simulation model with local network externality to analyze strategic interactions over investment on new economic knowledge. R&D knowledge flows and spillovers are the results of non-cooperative games played between neighboring agents in the model. The model demonstrates a situation where no agents have incentives to hide their economic knowledge, a situation that is observed in open source software development projects. The likelihood of obtaining a stable situation where new economic knowledge is openly shared is increased when heterogeneity of agents is introduced.      

Collaboration, peer review and open source software

Open source software development may be superior to proprietary development because the open source organizational form naturally minimizes transactions costs associated with privately distributed information. This manifests itself in the ability of open source communities to encourage critical peer review and the sharing of ideas. When these activities are important, the open source organizational form may do better than a proprietary organizational form. My results suggest why open source is particularly powerful when maintainability of software is critical, and also suggest that the founder of a software project may be more likely to choose open source if there is an existing dominant proprietary software project.     

基于地理学对"三江源"生态难民形成机制的分析

本文围绕“三江源”日益恶化的生态环境及由此引发的生态难民问题,从地理学的角度进行了综合分析,明确提出独特的自然环境系统和现代环境的变迁给源区牧民提供了极其狭小的空间,而人类活动中传统的生产方式、现代价值取向的变化、社会管理的失误以及落后的经济发展水平,无限制的对自然的索取,超越了环境系统所能承受的阀值,人类不得不听任自然的“安排”。因此,应通过合理规划,积极妥善地安置源区生态难民;调整产业结构,积极发展源区经济;科学管理,有计划地节制外来流动人员;发展教育,构建与源区生态相适宜的生态文化,实现区域可持续发展的“双赢”目标。     

企业风险传导及其载体研究

本文在概述风险与企业风险的基础上定义了何为企业风险传导,并对企业风险的传导路径作了归纳和分析;阐述了在企业风险的传导链和传导网络中,载体是风险传导过程中风险各要素相互联系的桥梁,也是各要素相互作用实现的有效形式;还揭示了在整个风险传导过程中,载体具有承载风险和传导风险的作用,同时,风险源、驱动力以及风险载体之间相互作用形成的耦合效应也使载体在企业风险传导链中具有“放大镜”的效应;并从企业风险传导的角度探讨了如何防范和控制企业风险。