国外风电并网可行性研究述评

国外研究机构针对风电并网对电力系统的影响开展了一系列研究。本文对国外风电并网可行性研究的内容和方法进行了分析和总结。风电并网研究主要包括并网方案设计、系统备用容量计算、系统运行成本分析、风电容量价值分析和储能装置经济性分析等方面。以上方面目前尚未形成规范统一的研究方法,不同研究机构结合实际问题选择了不同的方法。各研究均认为,大规模风电并网虽然存在一些弊端,但总体来看不会影响到系统的正常运行。     

基于ISM的电网逆向物流回收网络构建因素研究

物流是企业利润的第三源泉,而逆向物流在激烈的市场竞争中成为又一项利润来源。现今电网正在积极的进行物流中心的规划建设,但是没有考虑到逆向物流回收所带来的自身利益和社会利益的提高,本文运用了ISM模型对电网的回收网络建设进行了研究,得出了影响网络建设的因素并给出了相关建议,为之后电网回收网络的建设提供一些参考价值。     

我国中小企业信用风险及其治理途径

信用是市场经济的基石和灵魂我国正处在经济转型时期,目前信用环境十分恶劣,中小企业信用缺失现象严重,制约着经济发展,建立有效的风险治理机制,降低企业信用风险,有利于调整市场经济活动利益关系、促进中小企业的健康发展本文针对中小企业在国民经济中的重要地位、中小企业的现状,提出加速中小企业产权制度改革、重视征信数据库的迮设和应用、连立健全失信惩罚机制等设想。     

基于机会约束的在险收益动态投资决策模型

本文在标准Black-Scholes型金融市场假设下,利用在险收益(EaR)来度量投资组合的风险,建立了基于机会约束的在险收益动态投资决策模型,讨论了最优常数再调整策略意义下的最优投资策略,给出了有效边界的显式表达式,并结合算例说明了模型的求解方法。     

Women's Participation in Local Organizations: Conditions and Constraints

Civic organizations have a capacity to contribute to economic growth and an equitable distribution of welfare by reducing information asymmetries and transaction costs. While donors increasingly recognize that group-based projects are a means to advocate organizational capacities of target groups, it is not clear whether group-based organizations always increase efficiency and equity. This article analyses the determinants of participation in local development groups (LDGs) using data from two projects funded by UNDP in Kashmir and GTZ in Chad. A major result of the empirical analysis is the identification of a “middle-class effect” of participation. The exclusion of the majority of the poor can be explained by high opportunity costs to join the group, especially for income-earning women. In addition, it can be shown that an existing social network is a pre-condition for participation. Finally, the assumption has been confirmed that bargaining power of the members is important for their decision to participate in groups.     

美国反倾销实质性阻碍调查若干问题探析

实质性阻碍是反倾销损害认定中的重要问题之一.近年来,实质性阻碍问题越来越多的得到了由于经济全球化中出现了许多幼稚产业的发达国家,和历史上就存在幼稚产业的发展中国家的重视.因此,有必要以反倾销法律较为完善的美国为例,对实质性阻碍问题做深入探讨.讨论与实质性阻碍调查相关的相同产品定 义、申请者资格、关联方、损害认定表决中投票平局认定、损害调查性质、司法审查标准、反倾销法令的行政复审、外汇汇率波动的影响和折旧方法等问题.     

供应链视角下餐饮O2O模式的配送路径优化

O2O最后一公里配送往往需要综合考虑时间和成本的关系,研究平台对订单的分配和路径优化对提升O2O供应链的整体效率和产业链升级具有十分重要的意义。从餐饮商家和O2O平台两个主要参与者出发对物流配送系统进行研究,提出了适合于O2O餐饮供应链的配送网络,并考虑道路阻塞、最大里程数等约束,搭建了上层模型最短时间、下层模型最低成本的双层规划模型,进而通过NSGA-Ⅱ算法求得可行解,最后验证了算法的可行性,为进一步研究O2O配送提供了新的解决思路。     

Government subsidies and firm performance: Evidence from high-tech start-ups in China

This study applies fsQCA to examine the effectiveness of government subsidies on the performance of high-tech start-ups under different configurations. We find that 1) selective subsidies can help ventures maintain high-performance regardless of the legal environment in which start-ups operate; and 2) start-ups with non-selective subsidies do not necessarily have high-performance if they operate in regions with weak legal protection and face strong market competition. We contribute to the literature by emphasizing that the effectiveness of government subsidies relies on the interplay of firm attributes and legal environment. Our findings also have practical implications for government support of sustainable entrepreneurs.     

基于能力素质评价的人力资源管理体系研究

学历代表过去,职位代表现在,学习能力代表未来。员工能力可以划分为以学历、现有知识技能水平为代表的显性能力和以创新意识、学习能力为代表的隐性能力两部分,而实践表明无论对于企业发展还是对于员工职业生涯规划,隐性能力都是至关重要的。企业通过构建科学合理的能力素质评价体系,可以形成合理的人岗匹配机制,实现人力资源的优化配置,同时最大限度地降低管理风险。     

Stock price reactions to stock dividend announcements: A case from a sluggish economic period

The 2007 financial crisis and the Great Recession that followed resulted in a loss of confidence among investors, and regaining their full trust and confidence has been a challenge for companies. Although economic growth has been volatile throughout the postwar World War II period, recent growth (2008–2015) has been remarkably weaker than in the previous low-growth period (1974–1995). The 2006–2015 period is often characterized by sluggish economic growth. This study investigates stock price reactions to stock dividend announcements, 30 days before and after the announcement dates, of publicly traded companies in the period 2006–2012. We use an event study methodology for 460 events and daily stock price data for companies in the CRSP historical data set. The study shows a significant reaction in stock prices around the event date. On average, stock prices reacted positively to stock dividend announcements. However, compared to previous findings of abnormal returns (5.9%), results from this study show small abnormal returns (about 1.81%) attributable to stock dividend announcements that are cumulative of the announcement day and up to 3-day post-announcement days. Our estimates are even lower than the 2.01% stock price reaction obtained in the 1987–1996 period.