大庆油田突发事件应急指挥管理系统建设探索

本文探讨利用油田现有的各种资源,搭建应急指挥平台,从而最大限度地降低大庆油田公司各类突发事件的发生概率,减少发生突发事件时所造成的经济损失和社会影响,确保油田生产生活秩序的平稳。     

A technical note on “A fuzzy set approach for R&D portfolio selection using a real options valuation model” by Wang and Hwang (2007)

In this paper, three critical issues with the paper “A fuzzy set approach for R&D portfolio selection using a real options valuation model”, coauthored by Wang and Hwang and published in Omega 2007 are addressed. Shortcomings of the original work are highlighted and corrective measures to improve the approach are proposed.     

二语习得研究的理论与范式

二语习得理论是科学系统地研究二语习得现象的理论。由于对二语习得现象的认识视角不同,二语研究者建构了很多不同的二语习得理论。历时地评价和梳理二语习得研究的哲学根源以及相应的研究范式,从共时的角度建立二语习得理论研究的学科范式,即明确二语习得研究的学科属性,对于二语习得理论体系及其评价体系的建构至关重要。     

试析教育实习学生的成绩评定问题

笔者就师范院校教育实习工作中学生成绩评定的问题、产生的原因和解决的对策三个方面,进行了认真的分析和论述。在揭示教育实习生成绩评定的问题时,明确了评定教育实习学生中存在的制度不完善和管理制度不严格等问题,其中对评定中各主体的随意性大的问题,进行了重点的分析和认证。在分析教育实习生成绩评定中的问题成因时,从各评定的主体角度逐一予以论述。在给定解决教育实习生成绩评定中问题的对策时,主张一靠制度、二靠管理、三靠创新。特别是在论述创新问题时,不仅提出"自由竞争考评法",而且就该法的实施给出了具体的操作程序及考评标准。     

基于校园媒体平台下高校舆情工作探究

校园媒体是高校师生员工信息传播、情感交流的重要载体,是研究高校舆情的不可或缺的重要平台。校园媒体平台下高校舆情工作存在管理机制不健全、重视＂网络＂忽视＂传统媒体效应＂、重＂堵＂不重＂疏＂、重＂宣＂不重＂教＂等问题。要构建高校校园媒体舆情工作管理队伍,建立、健全高校校园媒体舆情工作管理机制,充分发挥媒体作为＂耳目喉舌＂在...     

管理层次及其相关变量的经济效应——来自中国典型的省直管县的证据

经济增长与管理层次减少有着密切的关系,从理论上说,减少管理层次有利于促进经济增长。省直管县是减少管理层次的最典型的表现形式,是否对经济增长起到推动和促进作用？文章以省直管县的典型——海南省为例,采用纵向和横向分析相结合的方法,搜集了20年时间跨度的资料用于分析。研究发现,省直管县对海南经济增长有一定的促进作用,表现为：在经济基础较差的条件下,20年保持了较高的增长速度,行政成本大大降低等,但这种作用在统计上不具有显著性,在时间上不具有持续性。文章用经济学和管理学理论进行了解释。     

Accounting Performance and Capacity Investment Decisions: Evidence from California Hospitals

Capacity decisions involve trade‐offs between the cost of capacity and the opportunity costs of lost sales. Accounting researchers posit that accounting performance provides sufficient information about these trade‐offs and thus can be used to formulate simple rules to assist capacity decisions. Empirical research has not examined the role of accounting information in capacity investment decisions at the department level in a multiproduct firm in the presence of social costs. Empirical analyses using department‐level data from California hospitals for the period 1998–2005 show that hospitals are more likely to make capacity investments in departments with high accounting performance. However, in the presence of demand variability, the association between accounting performance and capacity investment is attenuated because of the resulting increase in noise in accounting performance measures. Thus, the weight on accounting performance as a decision tool for capital investments reduces when there is demand variability. Another factor that reduces the weight on accounting performance is capacity utilization. Higher capacity utilization can lead to turning away or rerouting of patients to other hospitals and negatively impacts reputation and quality of care, which increases the hospital's social costs. Hence, hospitals do not require high accounting performance before investing in a department with high capacity utilization. This empirical evidence of the role of accounting performance in capacity investment decisions fills a gap in the capacity investment literature and furthers our understanding of the interactions between accounting performance and the operational determinants of firms’ capacity investment behavior.     

Supply Network Structure,Visibility, and Risk Diffusion: A Computational Approach

Understanding and managing supply chain risks is a critical functional competency for today's global enterprises. A lack of this competency can have significant negative outcomes, including costly production and delivery delays, loss of future sales, and a tarnished corporate image. The ability to identify and mitigate risks, however, is complicated as supply chains are becoming increasingly global, complex, and interconnected. Drawing on the complex systems and epidemiology literature, and using a computational modeling and network analysis approach, we examine the impact of global supply network structure on risk diffusion and supply network health and demonstrate the importance of supply network visibility. Our results show a significant association between network structure and both risk diffusion and supply network health. In particular, our results indicate that small‐world supply network topologies consistently outperform supply networks with scale‐free characteristics. Theoretically, our study contributes to our understanding of risk management and supply networks as complex networked systems using a computational approach. Managerially, our study illustrates how decision makers can benefit from a network analytic approach to develop a more holistic understanding of system‐wide risk diffusion and to guide network governance policies for more favorable health level outcomes. The article concludes by highlighting the main findings and discussing possibilities of future research directions.